Rum Sum

PLONK game studio

About this game

Here comes the math. Two gates, one second: ×2 grows your googly herd into a stampede, −7 eats it for breakfast. Pick fast — the track only gets faster.

RUM SUM is quick mental arithmetic disguised as a very silly crowd-runner. Steer a wobbling mob of blobs through the best number gate, chain streaks, and chase a score that only ends when you run out of blobs.

FEATURES
• one finger steers the whole herd — slide left, slide right, done
• endless run that ramps from friendly +2s to rude ×gates
• daily challenge, day streaks and achievements — go On Fire, become Unstoppable
• grow a crowd of 500 and unlock the Stampede
• local top-10 leaderboard for family bragging rights
• plays fully offline — planes, basements, boring queues
• free, with no ads squeezing between you and the math

A PLONK game. It's counting on you — literally.