Title: Door Kickers
Developer: Killhouse Games
Platforms: PC, Mac, Linux
When I first reviewed Door Kickers in August, the game had just been Greenlit on Steam and while still in Alpha, was very playable and great fun. The game has come a long way since those summer impressions and only continues to improve. Like Prison Architect, it's the kind of Early Access game where every update feels significant and game-changing.
You can purchase Door Kickers from the developer's site or on Steam.