Complete all Quests in Chapter 3.
Get over 500k points in Survival game mode.
Complete all Quests in Chapter 1.
Unlock all Perks.
Get 100 hit accuracy in Chapter 2 Quest 5.
Complete all Normal Quest levels with full health remaining.
Get over 75k points in Nukefism game mode.
Destroy over 500 nests.
Get over 250k points in Survival game mode.
Complete all Quests in Chapter 7.
Complete all Quests in Chapter 2.
Explode 50 creatures to gibs within the first 30 seconds of a level.
Complete all Quests in Chapter 6.
Complete all Quests in Chapter 5.
Get over 100k points in Weapon Picker game mode.
Complete all Quests in Chapter 4.
Complete the game in Hardcore difficulty.
Collect 50 Blowtorches.
Bounce Shock Chain powerup over 30 times.
Complete the game in Grim difficulty.
Get over 50k points in Rush game mode.
Get over 250k points in Blitz game mode.