Spareware

Kill 128 enemies

LockedSteam

Kill 256 enemies

LockedSteam

Kill 1024 enemies

LockedSteam

Kill 16384 enemies

LockedSteam

Kill 65536 enemies

LockedSteam

Die on Easy difficulty

LockedSteam

Complete the Core on Casual

LockedSteam

Complete the Core on Easy

LockedSteam

Complete the Core on Medium

LockedSteam

Complete the Core on Hard

LockedSteam

Finish a level in 4 player coop

LockedSteam

Complete a run without anyone dying in coop on Medium or higher

LockedSteam

Reach level 8

LockedSteam

Reach level 16

LockedSteam

Reach level 32

LockedSteam

Reach level 50

LockedSteam

No friendly kills in a single level in coop

LockedSteam

Defeat the Core level 10 times

LockedSteam

Kill 5 enemies with a single mine

LockedSteam

Don't take any damage in a level

LockedSteam

Don't take any damage in a whole run

LockedSteam

Complete the game with four players so none take damage

LockedSteam

Kill ten enemies with a single railgun shot

LockedSteam

Kill 20 enemies with one eBola shot

LockedSteam

Kill an enemy with a bullet that has bounced at least 3 times

LockedSteam

Kill 256 enemies with Flechette

LockedSteam

Kill 256 enemies with Bolter

LockedSteam

Kill 256 enemies with Railgun

LockedSteam

Kill 256 enemies with Rocketeer

LockedSteam

Kill 256 enemies with Cancannon

LockedSteam

Kill 256 enemies with Speargun

LockedSteam

Kill 256 enemies with eBola

LockedSteam

Kill 256 enemies with Shield Ricochets

LockedSteam

Unlock the whole Scout-tree

LockedSteam

Unlock the whole Juggernaut-tree

LockedSteam

Unlock the whole Support-tree

LockedSteam