Zombie action RPG with Oregon Trail elements added to the game. Kill zombies and loot supplies to try and make it to Canada. Game has unlimited replayability.
Bought the Android game on the FP for $1. Loved it but found that the controls were a bit wonky playing on the phone. Got the PC version and it is a way better experience and even has local multiplayer. One of the best games I've played in a long time.