Kevlar Vest[]
| Level required | 2 |
| Max level | 6 |
Increases your armor by 0.2 per level.
Augmented Armor[]
| Level required | 5 |
| Max level | 3 |
Increases energy regeneration by 10% per level.
Dodge[]
| Level required | 8 |
| Max level | 4 |
Chance to avoid a normal weapon attack. 8% chance to dodge per level. This applies to zombie, player, turret attacks, and has 1 second cooldown.
Well Fed[]
| Level required | 11 |
| Max level | 6 |
Increases hit points by 5 per level.
Life Support System[]
| Level required | 14 |
| Max level | 3 |
Increases health regeneration by 150% per level.
Engineering[]
| Level required | 17 |
| Max level | 3 |
Level 1: You learn the schematic to build perdition turrets
Level 2: +50 hp on perdition turret
Level 3: +100hp on perdition turret
Reinforced Structures[]
| Level required | 20 |
| Max level | 5 |
All your structures gain an additional 10 Hit Points per level.
Fortified Barricades[]
| Level required | 23 |
| Max level | 4 |
Your barricades are more durable with 0.3 armor per level.