Heroes of Might and Magic III: 3 Open Source Clones Compared
Ancient Beast, despite being grouped here, is a browser-based tactical creature-battle game played online in 1v1/2v2 matches — its own description has no stated connection to Heroes III's kingdom-building strategy format. Of the two closer engine projects, VCMI is the more complete option: it's fully playable, cross-platform, and ships full mod support including a map editor, but always needs the original Heroes III data files. FreeHeroes is explicitly pre-alpha, with only its battle-simulation mode currently playable, though it includes a one-time converter that lets it run without the original files afterward.
Comparison table
Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX, Android, iOS
- Play in browser
- No
- Mobile
- Android, iOS
Project health
- Development status
- Active
- Last updated
- 2d ago
- Stars
- 5,863
- Contributors
- 229
- License
- GPL-2.0
- Engine
- SDL2
Compatibility
- Requires original assets
- YesHeroes of Might & Magic III game data is required to play.
- Modding support
- YesFull mod support with guidelines, mod file format specifications, and map editor included.
- Multiplayer
- Multiplayer
Availability
- Status
- Playable
- Platforms
- Web
- Play in browser
- YesPlay in Browser
- Mobile
- No
Project health
- Development status
- Active
- Last updated
- 1mo ago
- Stars
- 1,873
- Contributors
- 218
- License
- AGPL-3.0
- Engine
- Phaser
Compatibility
- Requires original assets
- NoThe game includes its own original assets and does not require external game files.
- Modding support
- —
- Multiplayer
- Online
Availability
- Status
- Unplayable
- Platforms
- Windows
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Active
- Last updated
- 17d ago
- Stars
- 74
- Contributors
- 7
- License
- MIT
- Engine
- —
Compatibility
- Requires original assets
- YesRequires original Heroes III data; FreeHeroes provides a converter for legacy data. After conversion, original game resources are no longer needed.
- Modding support
- —
- Multiplayer
- —
| Title | VCMI | Ancient Beast | FreeHeroes |
|---|---|---|---|
| Status | Playable | Playable | Unplayable |
| Platforms | Windows, Linux, OSX, Android, iOS | Web | Windows |
| Play in browser | No | YesPlay in Browser | No |
| Mobile | Android, iOS | No | No |
| Project health | |||
| Development status | Active | Active | Active |
| Last updated | 2d ago | 1mo ago | 17d ago |
| Stars | 5,863 | 1,873 | 74 |
| Contributors | 229 | 218 | 7 |
| License | GPL-2.0 | AGPL-3.0 | MIT |
| Engine | SDL2 | Phaser | — |
| Compatibility | |||
| Requires original assets | YesHeroes of Might & Magic III game data is required to play. | NoThe game includes its own original assets and does not require external game files. | YesRequires original Heroes III data; FreeHeroes provides a converter for legacy data. After conversion, original game resources are no longer needed. |
| Modding support | YesFull mod support with guidelines, mod file format specifications, and map editor included. | — | — |
| Multiplayer | Multiplayer | Online | — |
| Preview | | | |
Known limitations
- compatibility: Pre-alpha version with potential issues; users should attach logs and replays when reporting bugs.
Frequently asked questions
Are the Heroes of Might and Magic III 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 Heroes of Might and Magic III clones use?
VCMI (GPL-2.0); Ancient Beast (AGPL-3.0); FreeHeroes (MIT).
Do I need to own the original Heroes of Might and Magic III to play these clones?
Ancient Beast runs standalone, no original files needed; VCMI and FreeHeroes require original game assets to play.
Can I play any of these Heroes of Might and Magic III clones directly in a browser?
Yes — Ancient Beast has a browser-playable build linked in the comparison table above, no install required.
Which Heroes of Might and Magic III clone is the most actively maintained?
VCMI, Ancient Beast, and FreeHeroes are 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 Heroes of Might and Magic III.