No missable achievements (plus 25 unknown)
Sign in with Steam or Xbox to track your progress, and:
Fire Solar Laser superweapon.
Fire Asteroid Diversion superweapon.
Defeat an enemy planet.
Fire all the superweapons during the same turn.
Win an online multiplayer match.
Win an online multiplayer match with at least two players.
Grow five cities to their maximum populations.
Unlock all technologies.
Win an online multiplayer match with at least four players.
Defeat two enemy planets in one turn.
Win 5 online multiplayer matches.
Beat the Impossible AI.
Build 200 buildings on your planet.
Destroy 100 cities over any number of games.
Win 10 single player games.
Win a match with barely any population left.
Win 10 online multiplayer matches.
Win an online multiplayer match with eight players.
Win 50 online multiplayer matches.
Win 100 online multiplayer matches.
Win 100 single player games.