We're doing a 3-lane card game jam! Examples of such games would be Marvel Snap, Crimson Company, or Artifact. Basically, games where there are 3 areas in which you can play cards, and you have to "win" two of the areas in some sense. Of course, if your game needs 4 or 5 lanes, that's okay too, but try and keep the "win 2/3" (or 3/5) lanes idea in there somehow if you can. There's no limitation on the number of cards or other components.

Have fun!