Geneshift is a GTA-inspired battle royale where each round lasts only two minutes. Use explosive vehicles, miniguns, invisibility, and more to outplay friends in tactical online combat. Then unlock powerful abilities as you blast through the online co-op campaign.
This is the free version, which gives access to the multiplayer Battle Royale mode, but not the other modes or the singleplayer campaign. You can buy the full game on Steam. You can also play for free through Steam, by clicking "Download Demo" on the right hand side. This is probably better as Steam will automatically update the game for you.