If you've read this far, you must want some feature details

• Customizable difficulty
  
• Single-player mode if you want to learn in a safe place (or if that's just your thing)
  
• Avatar customization unlocked by completing achievements
  
• Private games with friends
  
• Quality of life improvements beyond what's normal for Chess apps

Cooperative Chess is part of what has retroactively been termed a "molasses jam" run by the Bay Area Dev Collective. The theme of the jam was to make a violent genre non-violent. Somehow the idea of co-op chess came up during a brainstorming session, and I knew immediately that I had to figure out how to make it work. And now you and a friend get to experience it yourselves.

The other molasses game jam games are also on steam: