Super Monkey Ball: 5 Open Source Clones Compared
Nuncabola is a direct Java port of Neverball, reusing Neverball's own levels and physics rather than being an independent implementation; Neverball itself is the more actively developed of the two, with 42 contributors against Nuncabola's one. mb-decomp is a different kind of project altogether -- an early-stage decompilation of the arcade NAOMI version of Monkey Ball, currently unplayable with even its build instructions still marked TODO -- rather than an inspired-by clone like Neverball, Nuncabola, or Veraball.
Comparison table

Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Active
- Last updated
- 5d ago
- Stars
- 442
- Contributors
- 42
- License
- —
- Engine
- —
Compatibility
- Requires original assets
- NoOriginal game-like gameplay with built-in levels and content; no original assets required.

Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX
- Play in browser
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 1y ago
- Stars
- 44
- Contributors
- 2
- License
- MIT
- Engine
- Godot
Compatibility
- Requires original assets
- NoThis is an original Godot Engine game inspired by roll-the-ball mechanics, requiring no original assets.
Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 4y ago
- Stars
- 6
- Contributors
- 1
- License
- GPL-2.0
- Engine
- —
Compatibility
- Requires original assets
- NoThis is a remake written in Java based on Neverball; no original game assets are required.
Availability
- Status
- Unplayable
- Platforms
- Arcade
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 5y ago
- Stars
- 4
- Contributors
- 1
- License
- —
- Engine
- —
Compatibility
- Requires original assets
- —

Availability
- Status
- Playable
- Platforms
- Windows, Linux
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Sporadic
- Last updated
- 6mo ago
- Stars
- 1
- Contributors
- 1
- License
- gpl-3.0
- Engine
- —
Compatibility
- Requires original assets
- —
| Title | Neverball | Veraball | Nuncabola | mb-decomp | irrlamb |
|---|---|---|---|---|---|
| Status | Playable | Playable | Playable | Unplayable | Playable |
| Platforms | Windows, Linux, OSX | Windows, Linux, OSX | Windows, Linux, OSX | Arcade | Windows, Linux |
| Play in browser | No | No | No | No | |
| Mobile | No | No | No | No | No |
| Project health | |||||
| Development status | Active | Halted | Halted | Halted | Sporadic |
| Last updated | 5d ago | 1y ago | 4y ago | 5y ago | 6mo ago |
| Stars | 442 | 44 | 6 | 4 | 1 |
| Contributors | 42 | 2 | 1 | 1 | 1 |
| License | — | MIT | GPL-2.0 | — | gpl-3.0 |
| Engine | — | Godot | — | — | — |
| Compatibility | |||||
| Requires original assets | NoOriginal game-like gameplay with built-in levels and content; no original assets required. | NoThis is an original Godot Engine game inspired by roll-the-ball mechanics, requiring no original assets. | NoThis is a remake written in Java based on Neverball; no original game assets are required. | — | — |
| Preview | ![]() | ![]() | ![]() |
Frequently asked questions
Are the Super Monkey Ball clones on this page open source?
Yes — every clone catalogued here is an open-source project. Availability, license, and development-status details for each one are listed in the comparison table above.
What license do these Super Monkey Ball clones use?
Veraball (MIT); Nuncabola (GPL-2.0); irrlamb (gpl-3.0).
Do I need to own the original Super Monkey Ball to play these clones?
Neverball, Veraball, and Nuncabola run standalone, no original files needed.
Can I play any of these Super Monkey Ball clones directly in a browser?
Yes — Veraball has a browser-playable build linked in the comparison table above, no install required.
Which Super Monkey Ball clone is the most actively maintained?
Neverball is currently under active development, based on recent commit activity. See the "Development status" row above for every clone's current status.
See the full write-up for each clone, or go back to Super Monkey Ball.