Mission goals include rescuing a person or locating and destroying a target.

[7][8][9] The game follows Joe, a member of WOLFPACK, a private military unit whose task is to fight the zombie menace before it becomes global.

[10] Gamezebo praised the visuals and auto-shooting but criticised the microtransaction model and problematic performance on some devices.

[11] Apple'n'Apps praised the game style, visuals and controls while criticizing the levels and easiness.

[12] Unkilled won a Development Award in category People's Choice at Game Connection Europe 2015.