Risk of Rain 2 Survivors of the Void

The Gateway to The Void has opened! The corrupting power it contained has engulfed Petrichor V and plunged the planet into darkness. For millennia, The Void Creatures have grown dominant by taking artifacts from our realm to theirs. Now they look to add you to their collection. Bring your friends on the adventure! Only one player is required to own Survivors of the Void to enable the monsters, levels, and items to appear in-game for the whole lobby. Players without Survivors of the Void will be unable to select the two new survivors or permanently unlock new items, logbooks, or other content. — MetaCritic