Double Death is an arcade-style zombie survival and beat'em up game in the vein of old-school sidescrollers, with influence from modern survival games like Killing Floor. Double Death has an extremely fluid modding API as well, which allows for almost every aspect of the game to be customized and added onto, including custom maps, gamemodes, zombies, and more!
Just a small feature I added, whenever a new song starts playing a message box will fade in with the song's name and artist for about a second or two before fading out. You can turn this off in the options menu.