Developer: Lucky Frame
Platforms: PC, Mac, Linux
If you go into this game expecting a grand and complicated experience, you'll probably be disappointed. The Nightmare Cooperative is a compact game, a roguelike distilled to its base elements. You won't find complex skill trees, or a multitude of loot to collect and equip, or expansive environments for you to explore and perish in. That's not a bad thing; if you're looking for something simple but challenging, simplified yet also strategic and tactical, The Nightmare Cooperative excels.
You can purchase The Nightmare Cooperative from the developer's site, Steam, Humble, and itch.io.