Merge Drop

Drop discs, merge equal sizes into bigger ones, and see how long you can keep the pile under the line.

Aim with the arrow keys and press Space. Discs fall, roll and settle; when two of the same size touch they merge into the next size, and the merge you set up three drops ago is the one that clears the jar.

The physics is deterministic and every jar is seeded — the same seed and the same drops always play out the same way. Scores post to the leaderboard when the jar finally overflows.