Receiver is a first-person shooter video game developed by Wolfire Games. The game attempts to portray realistic gun mechanics through a unique reloading system, where each step of reloading is assigned a different button. The player scavenges items and audio tapes which reveal the story in a procedurally generated world. Receiver was released in June 2012 for Linux, Microsoft Windows, and Mac OS X. In 2013, the game is available as a free copy when purchasing the other Wolfire Games video game Overgrowth.