Much like their Borderlands games, for which this is an obvious spiritual successor, Battleborn (Xbox One, PlayStation 4, PC) is a sci-fi first-person that was designed by the good people of Gearbox Software to be a co-op game, but could be played solo if you really felt like it. But while some co-op games work well solo (The Division, Destiny), not all of them do (Rainbow Six Siege). And it’s somewhere in between, though leaning more towards the former, that we find Battleborn.