Physics Merge

Merge Balls

Tune the simulation live with physics entries, move with A and D, and drop with click, S, or space.

Score

Best Ball

How It Works

There is no hidden grid anymore. Balls are simulated as circles inside a bucket with gravity, wall bounces, floor settling, collision separation, and same-level merges.

Press A and D to move the drop lane smoothly.

Click, press S, or press space to release the preview ball.

Press K to toggle auto-drop if you want it to keep dropping for you.

Gravity, tick, mass scaling, and pixel scaling can be tuned below.

Gravity EntryTick Entry (ms)Ball-Mass-By-Size EntryBall-Pixel-Factor-By-Size EntryHeight:Width Entry

Enter board size as height:width. The bucket resizes live when the value is valid.

Ball-Level->-No-Move Entry

Balls with a level greater than this entry cannot move. Use 0 to disable.

Next-Ball-Size Entry

Use a whole number for a fixed next ball level, or enter random for a random level from 1 to max-ball-size / 4.

Keyboard

Press A and D to aim, P to pause or resume, K to toggle auto-drop, S or space to drop, and R to restart.