Alien Breed 3D: 2 Open Source Clones Compared
AB3D-RTG changes how the game renders, outputting through RTG (graphics-card) hardware instead of the Amiga's native chunky-to-planar display that the original used, but is currently marked unplayable. Alien Breed 3D I instead keeps the original rendering approach, requires the original game's data files to run, and adds a few conveniences the original lacked — an Esc-key shortcut to the shell, optional WASD movement, and level passwords saved automatically on exit — and is currently playable.
Comparison table
Availability
- Status
- Unplayable
- Platforms
- Amiga
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 4y ago
- Stars
- 7
- Contributors
- 1
Compatibility
- Requires original assets
- —

Availability
- Status
- Playable
- Platforms
- Amiga
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 1y ago
- Stars
- 6
- Contributors
- 1
Compatibility
- Requires original assets
- YesNeeds data files from the original game.
| Title | AB3D-RTG | Alien Breed 3D I |
|---|---|---|
| Status | Unplayable | Playable |
| Platforms | Amiga | Amiga |
| Play in browser | No | No |
| Mobile | No | No |
| Project health | ||
| Development status | Halted | Halted |
| Last updated | 4y ago | 1y ago |
| Stars | 7 | 6 |
| Contributors | 1 | 1 |
| Compatibility | ||
| Requires original assets | — | YesNeeds data files from the original game. |
| Preview | ![]() |
Frequently asked questions
Are the Alien Breed 3D 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.
Do I need to own the original Alien Breed 3D to play these clones?
Alien Breed 3D I requires original game assets to play.
See the full write-up for each clone, or go back to Alien Breed 3D.