# Domino On Acid - Home: http://winterdrache.de/freeware/domino/index.html, https://sourceforge.net/projects/nddomino/ - State: mature, inactive since 2009 - Keyword: puzzle, content open - Code repository: https://git.code.sf.net/p/nddomino/code - Code language: Java - Code license: GPL-2.0 - Assets license: GPL-2.0 - Developer: Matthias S. Benkmann Natural deduction visualization in the form of a game of unusual dominoes. ## Building - Build system: Ant