Find 60 collectibles.

Finish 75 quests cumulatively.

Reach level 25.

Kill 250 zombies using edged melee weapons.

Kill 5 Infected in a row with a single blow.

Play Dead Island at least 28 days after starting it for the first time.

Breach a locked door with the first blow.

Single Player: Silently subdue 30 enemies.

Create a customized weapon.

Reach level 10.

Kill 50 zombies using a vehicle.

Discover Makarov's next move. Complete "Stronghold" on any difficulty.