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ASTRONEER

ASTRONEER

Achievement guide · roadmap · tracker

61 achievements Guide 99%

A charming, chilled-out sandbox of planet-hopping, base-building and terrain-sculpting - and a very friendly 100%: nothing is missable, nothing is luck-gated, and a single save can do the lot in around 40-60 hours. The shape of the game is the gateway network: activate a chamber on each planet, dig to each core, wake the seven engines (To Infinity...To Infinity...), and step through the portal for the ending (...And Beyond...And Beyond).

The achievement list follows suit. Most of it falls out of a normal playthrough; the deliberate work is the completionist lap of all 34 chambers (Secrets of the UniverseSecrets of the Universe), the collection sweeps (Resources in the RoughResources in the Rough, They Who Smelt ItThey Who Smelt It, Lab RatLab Rat, Gas GiantGas Giant) and the Wanderer probe hunt (The Wanderer's WayThe Wanderer's Way) - all with full checklists on their pages here. Plan your travels around the planet-gated resources and gases (each engine's shopping list is on its achievement), and remember Atrox wants a canister of Hydrogen its own atmosphere can't provide.

You will need a friend for a handful of multiplayer achievements - EXO Dynamics Outreach ParticipantEXO Dynamics Outreach Participant, EXO Dynamics Outreach AdvocateEXO Dynamics Outreach Advocate, Let Me Borrow This Just A SecondLet Me Borrow This Just A Second, Journey to the Center of the ThingJourney to the Center of the Thing and Interplanetary Road TripInterplanetary Road Trip - best knocked out in one co-op session around a Desolo core run. Otherwise: dance on every planet, plant your horrible little garden, and enjoy one of the gentlest 100%s in the genre.

61 achievements
A Little Byte Goes a Long Way

A Little Byte Goes a Long Way

ObjectiveUnmissableAnywhere

Scan a Research Sample of any type.

When killing plants or delving into the planet you will see small items you scan for bytes. This will pop on using any of them.

Up By the Roots

Up By the Roots

ObjectiveUnmissableAnywhere

Dig up a hazard.

Dig up any of the dangerous plants with your tool.

Pursuit of Knowledge

Pursuit of Knowledge

ObjectiveUnmissableAnywhere

Research an item in the Research Chamber.

Build a small printer from your backpack( 1 compound) and then a medium printer  and a medium platform on the small printer (2 Compound 1 resin) . Build a research chamber from the medium printer and place it on the platform and power it. 

Occasionally while in the world you will find very large research items that you carry to this chamber. Put one in there and you will get bytes and the achievement.

Total minimum rescources needed- 3 compound, 1 resin

 

EXO Dynamics Outreach Participant

EXO Dynamics Outreach Participant

ObjectiveOptionalMulti-player

Join or host a multiplayer game session.

Just play online: host and have a friend join, or join theirs - it pops once you're in a live session together. While you've got company, tick off Let Me Borrow This Just A SecondLet Me Borrow This Just A Second and Interplanetary Road TripInterplanetary Road Trip too, and let the clock run for EXO Dynamics Outreach AdvocateEXO Dynamics Outreach Advocate.

Shapes and Other Shapes

Shapes and Other Shapes

ObjectiveUnmissableAnywhere

Find a Gateway Chamber.

Gateway Chambers are the huge dark structures beaming a thin column of light into the sky - Sylva has six spread around the globe, and you'll usually spot one within a short drive of your starting base. Walk onto the platform of any one and this pops. You'll be back with a power supply for First Step Into a Larger WorldFirst Step Into a Larger World.

Scrap for the Scrapper

Scrap for the Scrapper

ObjectiveOptionalAnywhere

Scrap an object in a Shredder.

Print a Medium Shredder, dock it on a platform, and feed it something - the small debris littered around crash sites is ideal, being both everywhere and free. Out comes Scrap, which the Trade Platform turns into resources (Junk TraderJunk Trader). The Medium Shredder only swallows small items; leave the big wreckage until you've got the larger shredders. First shred pops it, and 49 more gets you Chop ShopChop Shop.

EXO Dynamics Training Seal of Approval

EXO Dynamics Training Seal of Approval

ObjectiveOptionalSingle-player

Complete the Tutorial.

The Training mission lives on the main menu, so you don't need to touch your save - fire it up whenever. It's a gentle 15-20 minutes on the EXO training grounds, and the achievement pops when you finish it by launching the shuttle at the end. Worth a run even as a veteran; it's the only achievement tied to it, and it's cake.

Information Dump

Information Dump

ObjectiveOptionalAnywhere

Reach more than 150 Bytes-Per-Minute of concurrent research.

The lazy route: solve an EXO Research Aid (Thank You For Your Continued AssistanceThank You For Your Continued Assistance), take the research item inside and drop it in a Research Chamber - those items burn well over 150 bytes-per-second on their own, so this pops the moment the chamber spins up.

No Research Aid handy? Run several Research Chambers at once on decent research items - it's the concurrent rate across all chambers that counts, so a bank of chambers on freshly-found items gets you there too.

Thank You For Your Continued Assistance

Thank You For Your Continued Assistance

ObjectiveOptionalAnywhere

Solve an EXO Dynamics Research Aid.

EXO Dynamics Research Aids are the sealed EXO capsules dotted over every planet - on the surface and deeper down. Each one shows an icon for what opens it: either feed it power through the cable port (a couple of Medium Generators or a charged battery will do for the surface ones) or slot in the resource shown.

Inside sits a research item worth a serious pile of bytes - stick it straight in a Research Chamber and you'll likely bag Information DumpInformation Dump at the same time. Deeper capsules ask for rarer resources; the Astronium-locked ones can contain a QT-RTG, which is well worth the trouble.

Sweet New Ride

Sweet New Ride

ObjectiveOptionalAnywhere

Build a rover of any type.

The Buggy is the cheapest ticket: 1,500 bytes to unlock, then 1 Compound + 1 Aluminum at the Medium Printer. Smelt a unit of Laterite for the Aluminum and you're away. Any rover counts, so if you're saving for a Medium Rover for your first proper expedition, that pops it too.

Well Hello There, Fancypants

Well Hello There, Fancypants

ObjectiveOptionalAnywhere

Change into a different suit.

Hit Escape, open the Customisation menu (the star icon), and swap to any other suit - it pops the moment you change. You start with several suits unlocked, so nothing needs earning first. Thirty seconds, done.

Hang 10-Squared

Hang 10-Squared

ObjectiveOptionalAnywhere

Slide uninterrupted for at least 10 seconds.

You slide when a slope is too steep to walk down, so all this needs is a long, smooth descent. Find a decent mountainside, or carve your own with the terrain tool - a steady spiral ramp down a big hill works a treat - and keep pointing downhill for a clean 10 seconds.

If you're building it, make it steep but smooth: bumps and flat spots interrupt the slide and reset the clock. Digging a long angled tunnel underground works just as well and is easier to keep consistent.

Let Me Borrow This Just A Second

Let Me Borrow This Just A Second

ObjectiveOptionalMulti-player

Use a Research Chamber to research something in another Astroneer's game.

You must be the guest - your own save doesn't count. Join a friend's session, pop any research item or sample into a Research Chamber in their world and set it going. If you're both hunting it, swap roles afterwards so the host gets theirs in your save. An easy pair with EXO Dynamics Outreach ParticipantEXO Dynamics Outreach Participant.

Dirt Don't Hurt

Dirt Don't Hurt

ObjectiveOptionalAnywhere

Extract a resource using the Soil Centrifuge.

Print a Soil Centrifuge at the Medium Printer and dock it on a platform. It runs on soil, so fill Small Canisters first - equip a canister and dig anything with your terrain tool. Load the soil in, pick a resource on the dial, spin, done.

Beyond the achievement, this is your resource tap for the rest of the game - Compound and Resin on demand means never scrabbling around for basics again.

Blast Off

Blast Off

ObjectiveUnmissableAnywhere

Use a shuttle to leave Sylva.

Your ticket off-world: a Small Shuttle (1,500 bytes; 2 Aluminum at the Large Printer) plus a Solid-Fuel Thruster (500 bytes; 1 Aluminum + 1 Ammonium at the Small Printer). Fit the thruster, hop in, launch, pick a destination - pops the moment you leave Sylva.

The thruster is good for four take-offs (landings are free), so one covers the early planet-hopping. Desolo first is the classic - the Wolframite for your Chemistry Lab lives there, and One Small StepOne Small Step pops on arrival.

It's a Dry Heat

It's a Dry Heat

ObjectiveUnmissableAnywhere

Visit Calidor.

You get this for landing on Calidor for the first time. The arid world is home to Wolframite and Malachite, and its atmosphere is the best Sulfur source - which you'll want for Explosive Powder, both for Lab RatLab Rat and for Calidor's own engine (Calidor AwakenedCalidor Awakened).

Making a New Friend

Making a New Friend

ObjectiveOptionalAnywhere

Plant a seed.

Seeds drop now and then when you dig up flora with the terrain tool - hostile plants included. Take any seed, place it on the ground and hold the Use key (F on PC) to plant it. Done - your new friend grows where you put it. Planting all seven hostile varieties is In An Astroneer's GardenIn An Astroneer's Garden, so hang on to whatever you find.

Delve Greedily and Deep

Delve Greedily and Deep

ObjectiveUnmissableAnywhere

Travel to the Mantle depth of any planet.

Pops partway through any journey to a planet's core, when you cross into the mantle layer. Take a Drill Mod for the harder deep terrain (Barrier BusterBarrier Buster pops on the way), plenty of tethers or a Portable Oxygenator, and just keep digging down - gravity fades as you descend, and this unlocks en route to Encounter With the InfiniteEncounter With the Infinite.

One Small Step

One Small Step

ObjectiveUnmissable

Visit Desolo.

You get this for landing on Desolo for the first time.

EXO Dynamics Outreach Advocate

EXO Dynamics Outreach Advocate

GrindOptionalMulti-player

Spend more than 4 total hours in multiplayer sessions.

Four hours of multiplayer time, cumulative across sessions - no need to do it in one sitting. It comes naturally if you do a co-op evening or two; failing that, an idle session while you each potter about your own base chores counts just fine.

Pair it with the other co-op achievements - Let Me Borrow This Just A SecondLet Me Borrow This Just A Second, Journey to the Center of the ThingJourney to the Center of the Thing and Interplanetary Road TripInterplanetary Road Trip - and a Desolo engine run together, and the timer largely takes care of itself.

Do Science To It

Do Science To It

ObjectiveOptionalAnywhere

Synthesize a composite material with the Chemistry Lab.

Build the Chemistry Lab (1,600 bytes; Ceramic + Tungsten + Glass at the Medium Printer - the Tungsten means a Desolo or Calidor trip for Wolframite), then synthesise anything. Rubber is the freebie: 1 Organic + 1 Resin, both lying around any Sylva base. Pops on your first synth.

You'll be back here a lot for Lab RatLab Rat, so park the lab somewhere with decent power.

Resources in the Rough

Resources in the Rough

All-the-thingsOptionalAnywhere

Use the Terrain Tool to harvest every type of raw material.

Fifteen raw resources, and they have to come out of the ground via your Terrain Tool - trading or centrifuging them doesn't count as harvesting.

Nine are on every planet: Organic, Compound, Resin, Clay, Quartz, Ammonium, Graphite, Laterite and Astronium - that last one only appears in the deepest layer near the core, so grab a nugget during a gateway run. The other six are planet-gated:

  • Sphalerite - Sylva, Desolo
  • Malachite - Sylva, Calidor
  • Wolframite - Desolo, Calidor
  • Lithium - Vesania, Novus
  • Hematite - Novus, Glacio
  • Titanite - Vesania, Glacio

Four planets cover it (e.g. Sylva, Desolo, Vesania, Novus), and you'll visit them all anyway for the engines. Do They Who Smelt ItThey Who Smelt It as you go - the lists overlap almost entirely.

Collectibles (15)
1. Organic
2. Compound
3. Resin
4. Clay
5. Quartz
6. Ammonium
7. Graphite
8. Laterite
9. Astronium
10. Sphalerite
11. Malachite
12. Wolframite
13. Lithium
14. Hematite
15. Titanite

Let Me Borrow This Just a Second

ObjectiveOptionalMulti-player

Use a Research Chamber to research something in another Astroneer's game.

You must be the guest - your own save doesn't count. Join a friend's session, pop any research item or sample into a Research Chamber in their world and set it going. If you're both hunting it, swap roles afterwards so the host gets theirs in your save. An easy pair with EXO Dynamics Outreach ParticipantEXO Dynamics Outreach Participant.

First Step Into a Larger World

First Step Into a Larger World

ObjectiveUnmissableAnywhere

Solve a Gateway Chamber.

Each chamber wants sustained power into the cable ports on its central platform: 5U/s for 30 seconds on Sylva, climbing planet by planet to 30U/s on Atrox. A couple of Medium Generators, a rover-load of charged batteries, or (later) an RTG all do the job - the 30-second countdown only runs while the supply holds, so bring headroom.

When it completes, the chamber lights up permanently, joins the teleport network (Now You See Me...Now You See Me...), and - crucially - unlocks access to the planet's core (Encounter With the InfiniteEncounter With the Infinite).

Journey to the Center of the Thing

Journey to the Center of the Thing

ObjectiveOptionalMulti-player

Travel to the center of any planet in a multiplayer game.

The usual core run, just done while online - travel to any planet's centre during a multiplayer session and it pops. Desolo is the smallest planet and by far the quickest dig, so do it there. Sensible to combine with Desolo AwakenedDesolo Awakened so the trip does double duty, and the four-hour clock for EXO Dynamics Outreach AdvocateEXO Dynamics Outreach Advocate ticks along while you dig.

Scrap For the Scrapper

ObjectiveOptionalAnywhere

Scrap an object in a Shredder.

Print a Medium Shredder, dock it on a platform, and feed it something - the small debris littered around crash sites is ideal, being both everywhere and free. Out comes Scrap, which the Trade Platform turns into resources (Junk TraderJunk Trader). The Medium Shredder only swallows small items; leave the big wreckage until you've got the larger shredders. First shred pops it, and 49 more gets you Chop ShopChop Shop.

A Little Gassy

A Little Gassy

ObjectiveOptionalAnywhere

Collect a gas with the Atmospheric Condenser.

Print an Atmospheric Condenser, give it a platform and a healthy power supply, pick a gas and let it chug - any gas on any planet counts. On Sylva, Nitrogen condenses fastest. Just don't try it on Desolo: no atmosphere, no gas.

This is step one towards Gas GiantGas Giant, so consider keeping the condenser packaged for the grand tour.

Now You See Me...

Now You See Me...

ObjectiveOptionalAnywhere

Utilize the Gateway Fast Travel Network.

Once two or more gateways are active on a planet (chambers or the engine), interact with the Odd Stone at one and pick another - instant teleport. Quickest route: activate a second Sylva chamber and hop between them. The network later extends between planets via the satellite, and becomes the backbone of the endgame ferrying for ...And Beyond...And Beyond.

To the Forest Moon

To the Forest Moon

ObjectiveUnmissableAnywhere

Visit Novus.

You get this for landing on Novus for the first time.

Into the Woods

Into the Woods

UnmissableAnywhere

Visit Vesania.

You get this for landing on Vesania for the first time.

Cool As Ice

Cool As Ice

ObjectiveUnmissableAnywhere

Visit Glacio.

You get this for landing on Glacio for the first time. The tundra world stocks Hematite and Titanite, and its thin atmosphere is the richest Argon source. Its engine wants a Diamond, so arrive with one - or with a Chemistry Lab and the makings of Graphene - see Glacio AwakenedGlacio Awakened.

Junk Trader

Junk Trader

ObjectiveOptionalAnywhere

Use the Trade Platform to exchange Scrap for another resource.

Build the Trade Platform, load it with Scrap, pick what you want and hit the button - the rocket flies off and comes back with your resources. Any single trade pops it. Shred crash-site debris for the Scrap (Scrap for the ScrapperScrap for the Scrapper), and note the platform deals in Scrap only - it's the junk economy, not a general market.

They Who Smelt It

They Who Smelt It

All-the-thingsOptionalAnywhere

Use the Smelter to craft every type of refined resource.

Nine smelts through the Smelting Furnace:

  • Organic → Carbon
  • Quartz → Glass
  • Clay → Ceramic
  • Malachite → Copper
  • Laterite → Aluminum
  • Sphalerite → Zinc
  • Wolframite → Tungsten
  • Hematite → Iron
  • Titanite → Titanium

The first six you can manage around Sylva and its neighbours; Wolframite means Desolo or Calidor, Hematite means Novus or Glacio, Titanite means Vesania or Glacio. Overlaps almost entirely with Resources in the RoughResources in the Rough, so smelt one of everything as you gather it. And yes, Carbon counts - don't forget to burn an Organic.

Collectibles (9)
1. Carbon (Organic)
2. Glass (Quartz)
3. Ceramic (Clay)
4. Copper (Malachite)
5. Aluminum (Laterite)
6. Zinc (Sphalerite)
7. Tungsten (Wolframite)
8. Iron (Hematite)
9. Titanium (Titanite)

It's A Dry Heat

ObjectiveUnmissableAnywhere

Visit Calidor.

You get this for landing on Calidor for the first time. The arid world is home to Wolframite and Malachite, and its atmosphere is the best Sulfur source - which you'll want for Explosive Powder, both for Lab RatLab Rat and for Calidor's own engine (Calidor AwakenedCalidor Awakened).

Research Scientist

Research Scientist

GrindOptionalAnywhere

Gain 100,000 Bytes across all games.

100,000 bytes earned, cumulative across all your saves - this arrives on its own long before the 100% is done, so don't plan around it. If you do want to hurry it along: research items beat samples by miles, EXO Research Aids (Thank You For Your Continued AssistanceThank You For Your Continued Assistance) hold the best-value items, and the further-out planets spawn pricier research than Sylva.

Encounter With the Infinite

Encounter With the Infinite

ObjectiveUnmissableAnywhere

Find a Gateway Engine.

The Gateway Engine sits at the literal centre of every planet. Activate at least one surface chamber first (First Step Into a Larger WorldFirst Step Into a Larger World) or its forcefield stays up, then dig: straight down with a Drill Mod, or follow the cave systems. Gravity fades as you go - the last stretch is a gentle float into the glowing structure, and stepping inside pops this. You'll cross Delve Greedily and DeepDelve Greedily and Deep on the way down.

Journey To the Center of the Thing

ObjectiveOptionalMulti-player

Travel to the center of any planet in a multiplayer game.

The usual core run, just done while online - travel to any planet's centre during a multiplayer session and it pops. Desolo is the smallest planet and by far the quickest dig, so do it there. Sensible to combine with Desolo AwakenedDesolo Awakened so the trip does double duty, and the four-hour clock for EXO Dynamics Outreach AdvocateEXO Dynamics Outreach Advocate ticks along while you dig.

I Feel Sick

I Feel Sick

ObjectiveUnmissableAnywhere

Visit Atrox.

You get this for landing on Atrox for the first time. The green nightmare planet: hostile flora everywhere, so watch your step. Its atmosphere carries Methane, Sulfur, Nitrogen and the game's only Helium - and its engine wants a canister of Hydrogen, which Atrox itself doesn't have, so bring one along (Atrox AwakenedAtrox Awakened).

Interplanetary Road Trip

Interplanetary Road Trip

ObjectiveOptionalMulti-player

Travel to another planet with another player in the same shuttle.

Only one Astroneer fits in a shuttle cockpit, so bolt a Rover Seat (2 Compound) onto a spare slot - the Small Shuttle's side bay takes one, as does a Medium Shuttle's cargo slot. Pilot boards first, passenger climbs into the outside seat, then launch and land anywhere - the Desolo hop is plenty. Pops on landing.

Bare minimum kit: Small Shuttle (2 Aluminum), Solid-Fuel Thruster (1 Aluminum + 1 Ammonium), Rover Seat (2 Compound).

Resources In the Rough

All-the-thingsOptionalAnywhere

Use the Terrain Tool to harvest every type of raw material.

Fifteen raw resources, and they have to come out of the ground via your Terrain Tool - trading or centrifuging them doesn't count as harvesting.

Nine are on every planet: Organic, Compound, Resin, Clay, Quartz, Ammonium, Graphite, Laterite and Astronium - that last one only appears in the deepest layer near the core, so grab a nugget during a gateway run. The other six are planet-gated:

  • Sphalerite - Sylva, Desolo
  • Malachite - Sylva, Calidor
  • Wolframite - Desolo, Calidor
  • Lithium - Vesania, Novus
  • Hematite - Novus, Glacio
  • Titanite - Vesania, Glacio

Four planets cover it (e.g. Sylva, Desolo, Vesania, Novus), and you'll visit them all anyway for the engines. Do They Who Smelt ItThey Who Smelt It as you go - the lists overlap almost entirely.

Collectibles (15)
1. Organic
2. Compound
3. Resin
4. Clay
5. Quartz
6. Ammonium
7. Graphite
8. Laterite
9. Astronium
10. Sphalerite
11. Malachite
12. Wolframite
13. Lithium
14. Hematite
15. Titanite
Sylva Awakened

Sylva Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Sylva.

Activate any of Sylva's six chambers (5U/s for 30 seconds), then head for the centre with a unit of Quartz in your pocket. At the core, feed the Quartz into one of the three raised platforms - a Geometric Triptych appears and the forcefield drops. Carry it across a bridge to the slot on the opposite side, click it in, and Sylva wakes.

The Odd Stone now teleports you between the engine and your active chambers (and eventually the satellite). Same dance on every planet for To Infinity...To Infinity... - only the resource changes.

Barrier Buster

Barrier Buster

ObjectiveOptionalAnywhere

Use a drill to deform a harder type of terrain.

Deeper terrain is too hard for the bare Terrain Tool - it just scuffs the surface. Fit a Drill Mod 1 (or better) to your tool's augment slot, or use a rover-mounted drill, and carve into the harder stuff; it pops on the first bite. Every core run needs this, so it arrives naturally on your way to Encounter With the InfiniteEncounter With the Infinite.

Chop Shop

Chop Shop

GrindOptionalAnywhere

Scrap 50 objects in a Shredder.

Fifty objects through a shredder, counted across the whole save - no need to do it in one session. Crash-site debris is the fuel: do a sweep with a rover and a shredder on the back and this falls out of a single tidy-up tour. Small bits go straight in the Medium Shredder; stack the bigger wreck pieces somewhere until you have a Large Shredder to swallow them. One easy way to keep the count moving is to shred as you explore rather than hauling everything home first.

Gas Giant

Gas Giant

All-the-thingsUnmissableAnywhere

Use the Atmospheric Condenser to collect every type of gas.

This can be done with just 2 planets. Vesania and Atrox. Make a condenser on each and just cycle through late game with a portable battery generator with your ship.

Collectibles (6)
1. Hydrogen (Sylva/Calidor/Vesania/Novus)
2. Nitrogen (Sylva/Vesania/Atrox)
3. Argon (Vesania/Glacio)
4. Methane (Novus/Atrox)
5. Sulfur (Calidor/Atrox)
6. Helium (Atrox only)
Desolo Awakened

Desolo Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Desolo.

Desolo's two chambers want 8U/s for 30 seconds. The engine resource is Zinc - Sphalerite is native to Desolo (and Sylva), so smelt a unit before you descend. It's the smallest planet and by far the quickest core run in the game, which also makes it the sensible one to do in co-op for Journey to the Center of the ThingJourney to the Center of the Thing. Zinc into the platform, triptych across to the opposite slot, awakened.

Where We're Going, We Don't Need Roads

Where We're Going, We Don't Need Roads

ObjectiveOptionalAnywhere

Drive an airborne rover for at least 10 seconds.

Ten seconds airborne in a rover. Gravity is the enemy, so cheat it: on Desolo or Novus (low gravity) drive fast off a tall mountain or cliff edge and you'll hang for ages. Rovers don't take fall damage, though your cargo may reshuffle itself on landing. On a heavier planet, carve a launch ramp up a mountainside with the terrain tool and hit it with speed.

Lab Rat

Lab Rat

All-the-thingsOptionalAnywhere

Use the Chemistry Lab to synthesize each composite material.

Every Chemistry Lab recipe, twelve in all:

  • Rubber - Organic + Resin
  • Plastic - Compound + Carbon
  • Aluminum Alloy - Aluminum + Copper
  • Tungsten Carbide - Tungsten + Carbon
  • Silicone - Resin + Quartz + Methane
  • Explosive Powder - Carbon x2 + Sulfur
  • Hydrazine - Ammonium x2 + Hydrogen
  • Graphene - Graphite + Hydrazine
  • Diamond - Graphene x2
  • Steel - Iron + Carbon + Argon
  • Titanium Alloy - Titanium + Graphene + Nitrogen
  • Nanocarbon Alloy - Steel + Titanium Alloy + Helium

The gases are the travel plan: Methane, Sulfur, Argon, Nitrogen, Hydrogen and Helium between them touch most of the solar system, so run Gas GiantGas Giant alongside and you'll have everything on hand. Nanocarbon Alloy is the capstone - Helium only condenses on Atrox. Note the chain: Hydrazine → Graphene → Diamond → the alloys; work down the list roughly in order and it assembles itself.

Collectibles (12)
1. Rubber
2. Plastic
3. Aluminum Alloy
4. Tungsten Carbide
5. Silicone
6. Explosive Powder
7. Hydrazine
8. Graphene
9. Diamond
10. Steel
11. Titanium Alloy
12. Nanocarbon Alloy
Calidor Awakened

Calidor Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Calidor.

Calidor's chambers want 12U/s for 30 seconds. The engine asks for Explosive Powder: 2 Carbon + 1 Sulfur in the Chemistry Lab, and conveniently Calidor's own atmosphere is the best Sulfur source. Make it before you descend (or take a packaged lab), then the usual: powder into the platform, carry the triptych to the opposite slot, engine lit.

Vesania Awakened

Vesania Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Vesania.

Vesania's chambers want 16U/s for 30 seconds. The engine asks for Graphene: Graphite + Hydrazine in the Chemistry Lab, and Hydrazine is 2 Ammonium + 1 Hydrogen - Vesania's atmosphere has the richest Hydrogen in the system, so the planet supplies everything it demands. Make the Graphene before the descent, then the usual triptych two-step at the core.

Novus Awakened

Novus Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Novus.

Novus's two chambers want a stout 21U/s for 30 seconds, so bring proper power. The engine wants Silicone: Resin + Quartz + Methane in the Chemistry Lab, and Methane condenses on Novus itself (or Atrox). Small moon, short dig - one of the gentler engine runs once the chamber is lit.

Glacio Awakened

Glacio Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Glacio.

Glacio's chambers want 26U/s for 30 seconds - a rover-load of batteries or an RTG earns its keep here. The engine wants a Diamond: 2 Graphene in the Chemistry Lab (so ultimately 2 Graphite + 2 Hydrazine). Diamond doesn't occur naturally, so there's no shortcut from the ground - make it at base and carry it down. The cold doesn't hurt you; the wind farms love it.

The First Discovery

The First Discovery

ObjectiveOptionalAnywhere

Use the Probe Scanner to find one of the mysterious Vintage Probes.

Unlock the Probe Scanner (4,000 bytes; printed on your backpack from 1 Steel), stick it in a widget slot and activate it with its hotkey. It runs for about 15 seconds, pinging and pointing - the more lights, the closer you are. Probes favour rough, mountainous terrain, so sweep by buggy rather than on foot.

When you reach the Vintage Probe, slot the scanner into it to claim it (you get a new palette for your trouble). First probe pops this; doing all seven planets' probes leads to The Wanderer's WayThe Wanderer's Way.

Atrox Awakened

Atrox Awakened

StoryUnmissableAnywhere

Solve the Gateway Engine on Atrox.

The big one: 30U/s for 30 seconds per chamber, on the most hostile planet in the game. The engine wants a canister of Hydrogen - and Atrox's own atmosphere has none, so condense it on Sylva, Calidor, Vesania or Novus and bring it with you. The caves down are thick with hostile flora; a drill-fitted rover for the descent spares you most of it. Wake it and only the ferrying remains: To Infinity...To Infinity... and ...And Beyond...And Beyond.

...And Beyond

...And Beyond

StoryUnmissableAnywhereStory complete

Pass through the Gateway Portal into the unknown.

The ending. Once any engine is awake you can shuttle up to the Unidentified Satellite parked near the sun; touch the Odd Stone on an outer platform to add it to the teleport network. Opening the Portal itself takes a second Geometric Triptych from every planet - all seven, each into its matching slot, which means all seven engines awakened first (To Infinity...To Infinity...).

The efficient pattern: at each core, make two triptychs, slot one into the engine, then teleport straight to the satellite carrying the spare and slot it there. When the seventh ring lights, step into the centre and interact with the Odd Stone - cutscene, credits, and a shiny Galactic suit and palette for your trouble.

Leave anything you care about at base: vehicles and jetpacks don't work on the platform, and there are reports of parked shuttles going missing up there.

To Infinity...

To Infinity...

All-the-thingsUnmissableAnywhere

Solve all of the Gateway Engines.

One engine per planet, seven in all. The shopping list:

  • Sylva - Quartz
  • Desolo - Zinc
  • Calidor - Explosive Powder
  • Vesania - Graphene
  • Novus - Silicone
  • Glacio - Diamond
  • Atrox - Hydrogen (bring it - Atrox has none)

Chamber power to unlock each core climbs planet by planet: 5U/s (Sylva), 8 (Desolo), 12 (Calidor), 16 (Vesania), 21 (Novus), 26 (Glacio), 30 (Atrox) - all sustained for 30 seconds. A packaged Chemistry Lab, an Atmospheric Condenser and a decent battery bank make a tidy travelling kit.

While you're at each core, make a second triptych and ferry it to the satellite - future you (...And Beyond...And Beyond) will be grateful you didn't have to do the tour twice.

Collectibles (7)
1. Sylva (Quartz)
2. Desolo (Zinc)
3. Calidor (Explosive Powder)
4. Vesania (Graphene)
5. Novus (Silicone)
6. Glacio (Diamond)
7. Atrox (Hydrogen)
Galactic Boogaloo

Galactic Boogaloo

All-the-thingsOptionalAnywhere

Dance on every planet.

Dance once on each of the seven planets - any dance emote does it. Zero challenge, pure admin: have a boogie every time you land somewhere new, and check the list before you leave a planet for good. Doing the grand tour for To Infinity...To Infinity... touches every planet anyway - dance while the chamber charges.

Collectibles (7)
1. Sylva
2. Desolo
3. Calidor
4. Vesania
5. Novus
6. Glacio
7. Atrox
In An Astroneer's Garden

In An Astroneer's Garden

All-the-thingsOptionalAnywhere

Plant at least one of every type of seed: Spinelily, Lashleaf, Bouncevine, Wheezeweed, Thistlewhip, Popcoral, and Daggeroot.

Seven hostile-flora seeds, planted - nothing needs to grow to completion, the act of planting counts. Seeds drop occasionally when you dig up the parent plant with your terrain tool, so expect to uproot a few of each (Up By the RootsUp By the Roots will pop on your first).

Where each lives:

  • Bouncevine - Sylva's surface
  • Thistlewhip - Vesania and Novus (surface)
  • Lashleaf - Vesania and Novus
  • Wheezeweed - Calidor and Atrox
  • Spinelily - Calidor and Atrox
  • Popcoral - caves everywhere; surface of Glacio and Atrox
  • Daggeroot - caves and deep layers on all planets; surface of Desolo and Atrox

Three stops - Sylva, Vesania, Atrox - can cover the lot. To plant, place the seed on the ground and hold the Use key (F on PC). Plant them all in a row at base and enjoy your horrible little garden. :)

Collectibles (7)
1. Bouncevine (Sylva)
2. Thistlewhip (Vesania/Novus)
3. Lashleaf (Vesania/Novus)
4. Wheezeweed (Calidor/Atrox)
5. Spinelily (Calidor/Atrox)
6. Popcoral (caves anywhere)
7. Daggeroot (caves anywhere)
Baby You're a Firework

Baby You're a Firework

ObjectiveOptionalAnywhere

Launch 10 fireworks in 10 seconds.

Fireworks unlock for 3,750 bytes and print for 1 Explosive Powder each (backpack or Small Printer) - so this is really a Sulfur errand: 10 powder means 20 Carbon and 10 Sulfur, condensed on Calidor or Atrox.

Make your 10, then either line them up on the ground and sprint down the row holding the Use key, or do it properly: slot them all onto storage, wire up a button repeater, and fire the whole battery at once. Behold the monobeast of a light show, and the achievement with it.

The Wanderer's Way

The Wanderer's Way

All-the-thingsOptionalAnywhere

Said hello to the Wanderer.

The Wanderer questline: claim the Vintage Probe on each of the seven planets, then greet the Wanderer itself. Each probe wants a Probe Scanner slotted into it permanently, so budget one scanner per probe - 7 Steel in all (Iron + Carbon + Argon each, so bring Argon along for Gas GiantGas Giant while you're at it). Activate the scanner from a widget slot and follow the pings; a buggy makes each sweep painless (The First DiscoveryThe First Discovery pops on your first).

The bit people miss: after you claim the final probe, a rift opens nearby and the Wanderer emerges. Go to it and interact - that is the unlock, so don't wander off before saying hello. If you do miss the moment, the encounter is repeatable with another Probe Scanner.

Collectibles (8)
1. Probe on Sylva
2. Probe on Desolo
3. Probe on Calidor
4. Probe on Vesania
5. Probe on Novus
6. Probe on Glacio
7. Probe on Atrox
8. Greet the Wanderer at the rift
Secrets of the Universe

Secrets of the Universe

All-the-thingsOptionalAnywhere

Solve all of the Gateway Chambers.

Every chamber on every planet: six each on Sylva, Calidor, Vesania, Glacio and Atrox, two each on Desolo and Novus - 34 in all. Not required for the ending (one per planet unlocks each core), so this is the completionist's lap of the solar system, and comfortably the longest job in the game.

Kit a rover with a drill, batteries and an RTG or two, and circumnavigate each planet. On the six-chamber worlds the chambers sit four around the equator and one at each pole; the moons' two sit on opposite sides. Remember each chamber only joins the teleport network once you've powered it - Now You See Me...Now You See Me... gets you home, not out, so the legwork is real. Do your dancing (Galactic BoogalooGalactic Boogaloo) and probe-hunting (The Wanderer's WayThe Wanderer's Way) on the same laps.

34 to collect
EXO Dynamics Solar System Mastery

EXO Dynamics Solar System Mastery

All-the-thingsOptionalMulti-player

Obtain every Achievement in Astroneer.

The meta-achievement: everything else in the list. Nothing is missable or time-limited and nothing needs a second playthrough - one save can do the lot. You will need a friend for the multiplayer handful (EXO Dynamics Outreach ParticipantEXO Dynamics Outreach Participant, EXO Dynamics Outreach AdvocateEXO Dynamics Outreach Advocate, Let Me Borrow This Just A SecondLet Me Borrow This Just A Second, Journey to the Center of the ThingJourney to the Center of the Thing, Interplanetary Road TripInterplanetary Road Trip), and the long pole is Secrets of the UniverseSecrets of the Universe's 34-chamber lap of the solar system; everything else falls out of a normal completionist run. Grand tour done, badge earned - EXO thanks you for your continued assistance. :)

Breakdown

Kinds
8 Story 3 Grind 38 Objective 11 All-the-things
Missables
25 Unmissable 36 Optional
Multiplayer
1 Single-player 8 Multi-player 51 Anywhere
Glitches
No known glitches

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