Merge Hexa
Merge Hexa is a numbers puzzle on a honeycomb: combine hexagons carrying the same number to build bigger ones, and clear each of the 25 levels by reducing the board to a single shape. Missing a number? Build it from smaller pieces first.
The interface is one drag; the difficulty is all in move order, because every merge changes which neighbours touch.
Tip: merge from the outside in. Edge pieces have fewer neighbours and go stale fast; centre pieces stay flexible longest. Quiet, logical, and exactly right for our logical games tag.