Resogun developer Housemarque has teased that offline multiplayer could be coming to the game.
Housemarque teased on twitter possible DLC coming to Resogun:
First of many things to come #RESOGUN #DLC #teaser
The picture above shows two guys playing Resogun together on the couch. The game only has co-op online multiplayer at the moment. The new teasers suggests the upcoming DLC you allow you to play with a friend offline.