Hexfit

a thing fits when its edges agree.

drag a hex onto the board, turn it until its edges agree, watch the seams light up

There’s no way to lose here and nothing to solve — you’re handed one tile at a time, and turning it until its terrain lines up with whatever it lands next to is the entire game. The only reward is watching more seams catch light as the board fills in around what’s already placed.

Concepts: matching, tiling.

An interactive you play with one thumb, on Wundr.