Get out of cell.
Use ballista.
Use metal stakes.
Use flamethrower.
Use press machine.
Complete game on sandbox difficulty.
Complete game on easy difficulty.
Complete game on hard difficulty.
Complete game on middle difficulty.
Complete game on very hard difficulty.
Kill 20 enemies
Kill 50 enemies
Survive 15 minutes
Kill 100 enemies
Survive 30 minutes
Survive 60 minutes