It was not added in this version of the game.
You can use 5 skill points at each Tier
| TIER | APPEARANCE | NAME | LEVEL | DESCRIPTION |
| III |  |
Blood Thirsty | 0 | You recover 0% health when killing an enemy. |
| 1 | You recover 2% health when killing an enemy. | |||
| 2 | You recover 3% health when killing an enemy. | |||
| 3 | You recover 4% health when killing an enemy. | |||
 |
Advanced Armor | 1 | You can equip adcvanced armor. | |
 |
Advanced Weapon | 1 | You can use adcvanced weapon. |