Halebarde & Gonfanon is a turn based tactical game, played on an original checker board.
It uses Lua and Löve and is currently in development.
http://anamnese.online.fr/site2/index.php?page=halebarde_et_gonfanon (english version is at the end. I'll make an index soon)
Get it by svn at Sourceforge project page
Or get the latest development version