The defensive ZAMB! Biomutant Extermination is now available as a full game having previously been available via Steam Early Access. The game now boasts full features which include new additions such as 3 epic boss fights, online co-op mode, 16 new levels and lots of fixes and tweaks based on community feedback. Take a look at the trailer and then head on over to the Steam store page to jump in.
https://www.youtube.com/watch?v=AbwMh9k_IZg