Full list of all 35 Alien Breed Episode 3: Descent trophies - 16 bronze, 14 silver, 4 gold and 1 platinum.
- Hidden Treasure
Find all 'secret' collectibles.
Take 500 damage without dying on 'Determination' single player mission.
- More Speed, Less Haste
Complete 'Vengeance' single player level on Veteran mode in 17 minutes or less.
- Bigger is Better
Purchase any weapon upgrade (in single player).
- Version 2.0
Purchase any item upgrade (in single player).
- Hard Up?
Sell any item (in single player).
- At Your Mercy
Kill a stunned alien with a Frag Grenade (in single player).
- The Initiated
Complete the prologue in single player on any difficulty level.
- Bigger Isn't Always Better?
Kill a sentry gun with the Blaster.
Achieve a time of 8 minutes or better on any multiplayer survivor map.
- Can't Get Enough
Complete the prologue, all single player, co-op assault and survivor maps on any difficulty.
Complete any co-op assault map over PlayStation®Network.
- Idle Sentries
Finish any level with five Sentry guns in your inventory.
Complete any single player level using only the Blaster and Grenades.
- Sunny Side Up?
Kill an alien egg using the melee attack (in single player).
- Exploding Fist
Kill 3 burster aliens with one melee attack (in single player).
Smash 10 windows (in single player).
- Grave Robber
Collect 50 items or weapons from human corpses (in single player).
- Into the Kill Zone
Kill 20 aliens with one sentry gun.
Access the map screen (in single player).
- Recon Unit
Complete any single player level with the waypoints turned off.
- Light 'em up!
Kill 5 aliens with one shot of Project X (in single player).
- Systems Crash
Destroy the alien queen.
Locate the bodies of Vance and Barnes.