Outlast

Collect every document in the Whistleblower DLC - its own separate set from the base game. Use a DLC collectibles guide and sweep them on a relaxed run. Pairs with LEGACY for the DLC's recordings.

Finish Whistleblower on Insane - same one-death-back-to-the-start rules as LUNATIC, but for the DLC. The DLC's set-pieces (the Groom's dinner-party chase especially) are the white-knuckle bits, so learn them on an easier run first. Optional.

Finish the game without ever hiding under a bed or inside a locker. You can still duck behind cover, break line of sight and round corners - just never use those two dedicated hide-spot interactions. Outrun and out-corner your pursuers instead. Easiest on your relaxed Normal collectibles run so you're not also wrestling Insane. Difficulty-independent, so any mode counts.

Collect 15 documents and complete 15 recordings. Documents are the notes and files you pick up; recordings trigger when you raise the camcorder at a scripted point of interest (the camera icon flickers - film it). A milestone on the way to PULITZER, so if you're going for the lot you'll pass this naturally. A locations map saves backtracking.

An early scripted story moment at the main elevator. It happens automatically as you progress along the critical path, so there's nothing special to do - just play on and it unlocks. Unmissable.

Unmissable. Getting through the Female Ward requires finding its key - a required objective on the main path, so it unlocks as you follow the story. Nothing to seek out specially.

The hard one. Finish Insane without ever reloading a camera battery - so the whole game on your starting charge, never once hitting reload. The battery only drains while night vision is up, so play with the camcorder DOWN wherever there's any ambient light and only raise night vision in true pitch-black. Picking spare batteries up is fine (it's the reload action that voids it) - you just never use them. Do this and LUNATIC and PUNISHED come in the same run.

Story-forced. During the sewers you have to drain the flooded tunnels to carry on - operate the drainage valve as prompted. It's the only way forward, so unmissable.

A Whistleblower objective - turn off the gas when the DLC calls for it. It's part of the DLC's campaign path, so you'll tick it off by progressing. Optional (DLC content).

Unmissable main objective. Early on you're sent to restore power to the Administrative Block - make your way down to the basement and start the emergency generator as the game directs. You can't progress without it, so it can't be missed.

Complete every recording in the Whistleblower DLC - raise the camcorder at each scripted moment (watch for the flickering camera icon). Do it alongside ARCHIVIST on your collectibles run through the DLC. Optional.

Finish the game on Insane. Insane means one hit kills you and - the killer part - death sends you right back to the start with no checkpoints. It's a nerve test more than a skill test: learn the enemy patrol routes on an easier run first, move deliberately, and only sprint when you have to. Clears PUNISHED at the same time.

Every document and recording in the main game. Documents are picked up as you pass them; recordings are earned by raising the camcorder when the camera icon flickers at a moment of interest, then letting Miles narrate. Sweep them on an early, calm run with a locations guide - a couple of recordings are easy to walk straight past, so film anything that makes the icon appear. Covers EDUCATED on the way.

Finish the game - escape Mount Massive at the end of Miles's ordeal. Purely story, so it unlocks the moment the credits roll. If you're on an Insane run it'll pop alongside LUNATIC.

A Whistleblower objective - cut the electricity when the DLC requires it to move on. On the DLC's main path, so you'll get it as part of the campaign. Optional (DLC content).

Unmissable. In the Male Ward you're required to set off the sprinkler system to progress. Do as the game prompts and it pops - there's no skipping it.

Finish the Whistleblower DLC - the prequel campaign as Waylon Park that sets up (and closes out) the main game. Complete it on any difficulty. Optional DLC content, but it's the better story of the two.