- Home: https://hcsoftware.sourceforge.net/gravitation/, https://sourceforge.net/projects/hcsoftware/
- State: mature, inactive since 2008
- Download: https://sourceforge.net/projects/hcsoftware/files/Gravitation/
- Platform: Windows, Linux, macOS
- Keyword: adventure, content open
- Code language: C++
- Code license: Public domain
- Code dependency: SDL
- Assets license: Public domain
- Developer: Jason Rohrer, las30
Second autobiographical game by Jason Rohrer.