Defeat the Boss of the Abandoned Temple.
Abyssus
Cross Blitz Steam key
Defeat the Boss of the Sanctuary.
Abyssus Steam key
Complete the Story of Zone 3.
Deadzone: Rogue
Deadzone: Rogue Steam key
Complete the Story of Zone 2.
Deadzone: Rogue - Operative Pack DLC
Complete the Story of Zone 1.
Attempt a co-op run with a friend or two!