Humble's May Multiplayer Madness Bundle begins with Generation Zero, Northgard, and Midnight Ghost Hunt for $8. That is followed by Tainted Grail: Conquest, Chrono Ark, and Alina of the Arena for $12, as well as Fights in Tight Spaces plus Beneath the Oresa for the final $20 tier. That's it for our pick of this weekend's PC game deals, and hopefully, some of you have enough self-restraint not to keep adding to your ever-growing backlogs