Xultris

Home: https://github.com/mackers/xultris, https://web.archive.org/web/20181216030855/http://games.mozdev.org/xultris/
Inspiration: Tetris
State: mature, inactive since 2011
Platform: Web
Keyword: arcade
Code repository: https://github.com/mackers/xultris.git (@created 2010, @stars 7, @forks 3)
Code language: JavaScript, XUL
Code license: MPL-1.1
Developer: David McNamara, Mike Schuette, Brian King

Tetris variant implemented as a Mozilla Firefox extension.

Building