Security
Unity security vulnerability patch
Fix for Unity CVE-2025-59489 security vulnerability.
Steam
The Lost Marble
Also known as The Lost Marble, lm, lost marble
The Lost Marble is a platformer in which the player controls an intrepid marble. Roll fast, hop gaps, push cubes, explore and avoid enemies to find the goal of each level. Create and share levels too! Includes 20 hand-made levels, unlockable marbles, and an in-game level editor.
Last update
17 May 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
Gallery
In-game media
Achievements
Community progression
Top picks from 28 Steam achievements, sorted by player unlock rates.
- TerazzoFind the Terazzo marble86.3%
- TutorialComplete the tutorial79.0%
- Level 1Complete Level 152.1%
- Level 2Complete Level 244.0%
- Level 3Complete Level 342.3%
- HologramFind the Hologram marble37.1%