This is a list of everything that did not make the list, or made the list and got cut. It is divided into two categories - one is stuff that seems free, but actually has severe nonfree dependencies, while the other is simply not clearly indicated one way or the other.
If you find anything on awesome-gamedev that should be put on the Wall of Shame, please let me know!
This is released under the GNU Free Documentation License - its text is provided in the LICENSE file.
- Bfxr - relies on a proprietary runtime. Use sfxr/jsfxr instead.
- Bridges - only works on a proprietary platform.
- Canabalt - only works on a proprietary platform.
- Citrus - relies on a proprietary runtime.
- Codename Lumberjack - relies on a proprietary runtime.
- Dash - relies on a proprietary compiler.
- Ejecta - only works on a proprietary platform.
- EKG Runner - depends on a nonfree library.
- Ending - relies on a proprietary runtime.
- Farseer - depends on nonfree build tools.
- FlashPunk - relies on a proprietary runtime.
- Flixel - relies on a proprietary runtime. Use HaxeFlixel instead.
- GenesisEngine - relies on a proprietary build system and OS.
- Grit - depends on libCG.
- Hotfix - depends on a proprietary engine.
- MightyEditor - says it's 'open source', uses nonfree license.
- Monkey - graphics module is nonfree
- PuzzleDash - depends on a proprietary compiler.
- Sandbox Maker - based on free software, says it's 'open source', uses nonfree license.
- Starling - relies on a proprietary runtime.
- TransCube - depends on nonfree libraries.
- Blend4Web - Doesn't specify GPL version in program.
- Hextris - Doesn't specify GPL version in program.
- JiGS - Doesn't specify GPL version in program, has 'all rights reserved' components.
- Jitter - claims to be free, no clear licensing terms found, built for .NET (which doesn't hold much hope).
- Lichess - relies on questionably-free components.