Planned Release Date: 2026

About This Demo

About This Game (Demo)

marblebuilds - Demo

This is a free demo of marblebuilds. It includes the complete Sandbox, Puzzle, and Platformer modes with 50+ blocks and an introductory Campaign. Browse community tracks and publish your own creations.

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Design freely on an unlimited canvas, hit play, and watch marbles roll, bounce, explode, teleport, and react to the systems you've built.

Three Ways to Play

Sandbox: Build anything, no limits. Race marbles, track finish times, and experiment freely on an endless canvas.

Puzzle: Place a limited set of blocks to guide marbles to every star. Levels range from quick placements to deliberate, engineering-style thinking. Create and share your own puzzle levels, or try ones made by other players.

Platformer: Take direct control of your marbles. Collect all stars to finish the level. Switch between marbles at any time. Freeze the action, pick a new marble, and continue.

A built-in Campaign teaches you the blocks through increasingly creative levels.

Build Anything You Can Imagine

Use blocks to shape tracks, control motion, and create dynamic systems.

• Unlimited-size canvas

• Grid-based building

• Name, customize, and race your marbles

• Save your creations locally

Dynamic Physics & Interactions

• Boosters, springs, bumpers, and spinners

• Gravity and antigravity blocks

• Portals

• Breakable paths and explosive marbles

Logic & Circuit Systems

Digital logic via wires, logic gates, timers, Memcells, marble-triggered inputs, and Interactive Buttons for custom controls. Build anything from a simple door trigger to a working computer.

Style, Color, and Decoration

Transform your marble run into an aesthetic masterpiece with a 16-color palette of blocks, signs, nature blocks, and marble color changers.

What's in the Demo

• Sandbox, Puzzle, and Platformer modes

• 50+ blocks

• An introductory set of Campaign puzzle levels

• Community track browsing and sharing (up to 10 published tracks)

Full Game Adds

• 100+ gameplay-deep interactions

• Blocks that move other blocks

• Various marble sizes, filters, and elasticity

• Wind Blowers

• Glass and Regenerating Breakable blocks

• Block Rotators, Placers, and Destroyers

• Camera effect blocks

• Unlimited track publishing

• Full campaign with puzzle and platformer levels

• ... And more coming in future updates!

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

AI is used to generate game code.