There are 12 Trophies that can be collected.

Bronze

Iron Man
Learn how to operate your walker and complete Bootcamp

Second in Command
Defeat General Brutus by destroying The Excavator

You Never Walk Alone
Complete an area in co-op

Take it to the Max
Fully upgrade your walker

Green Peace
Don't push over any trees in Tresspassers

Thunder Struck
Destroy all lightning harvesters in Fog of War

Mine! Mine! Mine!
Don't take any damage from sea mines in Tide of Battle

Silver

Back to Retirement
Defeat Julius Steelwell and save the world by destroying The Butler

Veteran
Complete all areas on the hardest difficulty

Gladiator
Clear all Survival mode arenas

Survival of the Fittest
Complete a Survival mode arena without losing a life

Gold

Can't Touch This
Complete an area in Katharsis without getting hit

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