Zombie Grinder was a local and online cooperative arcade game, with the primary aim of killing zombies. It supports a variety of game modes, items and features. It is currently available through Steam on Windows, Linux and MacOs.
http://store.steampowered.com/app/263920
At this point in time the project is on indefinite hiatus for various internal reasons. Due to that, the source is now available for those who wish to experiment with it.
No warrenty or documentation is available, if you contact me I may be able to give suggestions.
Please be aware, a lot of this was written when I was less experienced, there are many instanes of poor practice. So don't use this to learn :)
The source code may be put to any use that is not commerical. Data assets are available in this responsitory as a courtesy to allow building the game, however we retain all rights, they should not be distributed.