Idle Marble Run: Merge Drop

Contains adsIn-app purchases
259 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

Drop a marble and watch it go. Down through the pegs, lighting up every bumper it touches, turning each bounce into gold.

Two marbles of the same kind that meet become one bigger marble, worth far more than the two that made it. That single rule is the whole game, and it never stops paying off.

MERGE YOUR WAY UP
Every merge unlocks a richer marble. Grey, gold, ruby, sapphire, emerald: the ladder keeps going, and so do the numbers.

THE BOARD KEEPS EARNING
An idle game at heart: close the app and the marbles keep working offline. Come back to a pile of gold waiting to be claimed, and double or triple it on the spot.

FIVE SPECIAL MARBLES
FIREBALL destroys bumpers in a single hit. SNOWBALL grows with every bounce. RAINBOW is pulled toward the pegs. SHADOW clones itself on impact. BUBBLEGUM sends bumpers flying.

AND PLENTY MORE
A cannon that fires marbles on its own. Bonus letters scattered across the board. A gallery to fill with every marble in the game. Achievements, levels, and a cloud save that carries progress from one device to the next.

No energy bar, no lives, nothing to unlock with a timer. Just bouncing physics, gentle celebrations, and numbers that always go up.

Idle Marble Run is free to play. It contains ads and optional in-app purchases, and any purchase removes the ads for good.
Drop a marble, merge it, and let the board earn gold while you're away.
Updated on
Oct 7, 2026
Featured stories

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 4 others
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

198 reviews
Phionix Fox
September 10, 2020
When you first begin the game it's fun but it seems that the longer you play it's more likely the adverts appear more and more and more till the point of when you're almost collecting all the marbles didn't advert every 2 minute so it seems that the longer you play the more likely the adverts appear
7 people found this review helpful
Did you find this helpful?
Renee Duncombe
November 6, 2020
SOOO FUN, THANK YOU :)) The only thing I find annoying is the ads, because I'm tapping so fast, and random ad plays in the middle of my clicking and sends me to the Play Store which is super annoying
22 people found this review helpful
Did you find this helpful?
Lennie Moore
July 2, 2020
It's a good idle game for a few hrs. Then you realize it becomes repetitive. I felt like there should have been more upgrades. Also buying gems does not remove adds
11 people found this review helpful
Did you find this helpful?

What’s new

Idle Marble Run is back, rebuilt from the ground up: new marbles to merge, offline earnings, special marbles, achievements and cloud save.
Content rating
Everyone
Learn more

App support

About the developer
Kilosaurus
fluffy@kilosaurus.com
5 MAIL DES THUYAS 78180 MONTIGNY-LE-BRETONNEUX France
+33 7 62 69 30 13

More by Kilosaurus