Here is the full list of all 43 Universe at War: Earth Assault achievements worth 1,000 gamerscore.
Play multiplayer for 75 hours.
Using Altea, Unmake 30 enemy units during a skirmish game session.
Collect 200 cows in Ranked or Conquer the World multiplayer games using Kamal Rex.
Requires every territory in Conquer the World to be owned by the Novus player.
Destroy 100 enemy aircraft using only Dervishes during Conquer the World matches.
Construct 1 of each type of Novus structure during a Ranked or Conquer the World match.
Requires every territory on the Conquer the World globe to be owned by the Masari player.
Spend 90% of your time in “Dark” mode during 4 Conquer the World matches.
Spend 90% of your time in “Light” mode during 4 Conquer the World matches.
Requires every territory in Conquer the World to be owned by the Hierarchy player.
Win 3 Conquer the World games using only the “Quantum” research branch.
Win 3 Conquer the World games using only the “Mutagen” research branch.
Defeat 5 opponents on the opposite platform.
Win 3 Conquer the World games using only the "Assault" research branch.
Defeat 2 ranked or Conquer the World opponents on the opposite platform.
Win 5 multiplayer games against other Novus opponents during a Ranked Game.
Defeat 5 Ranked Game opponents while playing as Novus.
Defeat 5 Ranked Game opponents in a row while playing as Novus.
Build 50 Flow Conduits during a single Ranked or Conquer the World match.
Defeat 5 Ranked Game opponents in a row while playing as Hierarchy.
Defeat 3 Ranked Game opponents while playing as Hierarchy.
Defeat 5 Ranked Game opponents in a row while playing as Masari.
Achieve victory within the first 18 minutes of a Ranked Game.
Defeat 1 Ranked Game opponent while playing as Masari.
Construct 1 of each Masari structure during a Ranked Game or Conquer the World match.
Destroy five enemy structures using any Super Weapon during skirmish battles.
Win 1 scenario campaign game.
Play through 1 scenario campaign on medium difficulty without losing any battles.
Complete Novus Campaign on normal or hard difficulty.
Complete Hierarchy Campaign on normal or hard difficulty.
Complete Masari Campaign on normal or hard difficulty.
All campaigns completed on normal difficulty.
All campaigns completed on hard difficulty.
Convert 100 civilians into zombies in skirmish, scenario or campaign games.
Collect 100 mutilated cows using Reapers in skirmish, scenario or campaign games.
Infiltrate the enemy Flow Conduit network in a skirmish game using only the Founder.
Defeat 1 medium AI in less than 20 minutes in a skirmish battle.
Use Reapers to acquire 100,000 additional Raw Materials during a skirmish session.
Defeat two medium AI players during a skirmish session.
Defeat 3 hard AI players during a skirmish session.
Defeat 1 hard AI player in a skirmish battle without building any heroes.
Destroy your first Hierarchy Walker in a skirmish, scenario or main campaign game.
Complete the Prelude Campaign.