- Home: https://web.archive.org/web/20211130143112/http://leetless.de/tag-Grail.html
- State: beta, inactive since 2013
- Platform: Linux
- Keyword: adventure, game engine, 2D, point & click
- Code repository: https://github.com/Droggelbecher/Grail.git (@created 2010, @stars 32, @forks 4)
- Code language: C++, Lua
- Code license: GPL-3.0
- Code dependency: SDL
- Developer: feelydj, Henning Hasemann
- Build system: CMake