Yes, The Ascent allows players to play in co-op mode and enjoy the story together. The co-op is drop-in/drop-out and allows players to hop into the action whenever they like. So if you are playing solo and a boss battle is proving a little troublesome, then an extra gun could be your ticket to success. You can play in couch-co-op, or you can go online and search for players to join the fight with. No matter what game mode you select, you will be able to play with up to four players. So for bullet mayhem, assemble a squad of indents and have at it.