Marvel Snap is a F2P game on ios, Android and Steam, the leader developer was game director for Hearthstone.
You play Marvel-themed cards to three sections on the board. The sections change each game and affect gameplay. If you control at least two sections, you win.
There are six turns in a game and players' moves are resolved simultaneously. The last games are very short - the last one I played was three minutes.
It's got small, interesting decisions, with a chance for the game to swing back and forth. My concern is that unlocking cards will be a grind - there's always an option to pay to skip said grind - and that it much better decks will be overwhelming. It seems quite casual, but I think it'll suit people that like tinkering with builds.
Anyone else playing?