Zachtronics made a lot of stellar games, and almost all of them included these delightful solitaire mini-games that fit to the theme of the game but also have clever other mechanics and variants to Solitaire that made it fun and refreshing.
Most of them have served me well as podcast games to play while hanging out in IRC rooms or group chats, or just decompress after pretty stressful days.
If I'm not mistaken, this is likely to be the final Zachtronics title release, unfortunately. Looking forward to seeing what the individual members of the Zachtronics team go on to do next.