Wolfenstein: Enemy Territory: 3 Open Source Clones Compared
ET: Legacy is the actively maintained continuation, pairing an updated engine with a companion mod extensible via Lua, but it cannot connect to servers running PunkBuster or the ETPro mod, and its 64-bit clients can only join servers running a matching 64-bit mod build. OpenWolf is a halted hobby fork of the ET:XreaL subproject aimed at engine updates and bug fixes. The third entry is the original GPL source release itself, which ships no game data — that must still be obtained separately under the original EULA.
Comparison table

Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX, Android
- Play in browser
- No
- Mobile
- Android
Project health
- Development status
- Active
- Last updated
- 1d ago
- Stars
- 718
- Contributors
- 147
- License
- GPL-3.0
- Engine
- SDL2
Compatibility
- Requires original assets
- YesRequires original Wolfenstein: Enemy Territory pak0.pk3 assets file; some mods may require pak1.pk3 and pak2.pk3.
- Modding support
- YesSupports custom mods with a Lua API for scripting and extensibility; compatible with many ET 2.60b mods.
- Multiplayer
- Online, Local Multiplayer
Availability
- Status
- Playable
- Platforms
- Linux, Windows
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 15y ago
- Stars
- 613
- Contributors
- 1
- License
- GPL-3.0
- Engine
- —
Compatibility
- Requires original assets
- YesThis source release does not contain any game data; game data is covered by the original EULA and must be obtained from the installed game.
- Modding support
- —
- Multiplayer
- Online
Availability
- Status
- Playable
- Platforms
- Windows, Linux, OSX
- Play in browser
- No
- Mobile
- No
Project health
- Development status
- Halted
- Last updated
- 1y ago
- Stars
- 27
- Contributors
- 6
- License
- GPL-3.0
- Engine
- id Tech
Compatibility
- Requires original assets
- —
- Modding support
- —
- Multiplayer
- —
| Title | ET: Legacy | Wolfenstein: Enemy Territory | OpenWolf |
|---|---|---|---|
| Status | Playable | Playable | Playable |
| Platforms | Windows, Linux, OSX, Android | Linux, Windows | Windows, Linux, OSX |
| Play in browser | No | No | No |
| Mobile | Android | No | No |
| Project health | |||
| Development status | Active | Halted | Halted |
| Last updated | 1d ago | 15y ago | 1y ago |
| Stars | 718 | 613 | 27 |
| Contributors | 147 | 1 | 6 |
| License | GPL-3.0 | GPL-3.0 | GPL-3.0 |
| Engine | SDL2 | — | id Tech |
| Compatibility | |||
| Requires original assets | YesRequires original Wolfenstein: Enemy Territory pak0.pk3 assets file; some mods may require pak1.pk3 and pak2.pk3. | YesThis source release does not contain any game data; game data is covered by the original EULA and must be obtained from the installed game. | — |
| Modding support | YesSupports custom mods with a Lua API for scripting and extensibility; compatible with many ET 2.60b mods. | — | — |
| Multiplayer | Online, Local Multiplayer | Online | — |
| Preview | ![]() |
Known limitations
- compatibility: ET: Legacy is not compatible with PunkBuster enabled servers.
- compatibility: ET: Legacy clients cannot connect to servers running the ETPro mod.
- platform: 64 bit ET: Legacy clients can only connect to servers running mods providing a 64 bit version.
Frequently asked questions
Are the Wolfenstein: Enemy Territory 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 Wolfenstein: Enemy Territory clones use?
ET: Legacy, Wolfenstein: Enemy Territory, and OpenWolf (GPL-3.0).
Do I need to own the original Wolfenstein: Enemy Territory to play these clones?
ET: Legacy and Wolfenstein: Enemy Territory require original game assets to play.
Which Wolfenstein: Enemy Territory clone is the most actively maintained?
ET: Legacy 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 Wolfenstein: Enemy Territory.