marblebuilds Demo

About the game

Not your ordinary marble physics sandbox. Watch the simulation play out, or control the marbles yourself. Snap blocks to an infinite grid to build anything you can imagine: automated music tracks, functional calculators, precision platformer courses, pinball machines, and playable minigames.

Current players

Updated Oct 28, 12:04 PM

24hr peak

Highest count in the last 24 hours

All time peak

Highest count in recorded history

Player history

824 observations in viewHistorical player data prior to Sept 2026 is from steamcharts.com.Oct 21, 2026, 3:14 PM – Oct 28, 2026, 12:04 PM

Game details

Rankings: Most Played#11,341 Popular Releases#639
Developer: grizzyyo
Publisher: The Bueno Interactive
Release date: Oct 19, 2026, 5:40 AM
Languages: English, Spanish - Spain, Bulgarian, Simplified Chinese, Traditional Chinese
Price: Free to play
Platforms: Windows
Features: Feature names
Single-player
Steam Achievements
Steam Cloud
Stats
Includes level editor
Tags: Casual Simulation Strategy Sandbox 2D Platformer