Tkgames is a site for games written using the powerful tcl/tk language. These include my original tesselation puzzle Polypuzzle, and recent additions Hearts, Spider, Yahtzee and the tooo addictive, Tktk.
Sudokut is a platform-independent Sudoku Solver written in Tcl. It is a command line tool, with no graphic interface: just pass a sudoku problem as a string to the command and it returns all possible solutions. It also explains the entire resolution process.
MoxQuizz is a multilingual IRC quiz/trivia bot for eggdrops, which acts as a game master. A question is posted to the channel and all chatter is searched for the answer.
Colonnes is a falling colour or photos blocks game. Align 3 blocks : they disappear & you earn 1 point. With trump or hold mode, you can score quicker.
Tickle Bomb is a fun logic game. Select the safe tiles based on hints about the number of bombs in neighboring tiles. Similar to Xbomb or Windows Minesweeper, Tickle bomb has far more interesting geometry and better design.
A highly flexible hangman game, includes full skinning capabilites allowing users to modify everything from the look to the word list used. Currently developed under Windows and Linux.
tkSokoban is a tcl/tk version of the Sokoban puzzle game. It contains several advanced features including keyboard and mouse control, automatic path finding, unlimited undo, and "skinable" levels. It currently includes 250 levels.