TCL/TK is another framework that can be made to work on Haiku. The tclsh interface seems broken, but wish works well enough, which is why these apps float in a blue "desktop" of their own.
A Lite Editor  - An IDE for TCL/TK development
Collapse - An addictive arcade type game, similar to Gemdrop or SameGame
Gravitate - A SameGame/TileFall-like game
Once-In-A-Lifetime - A TCL/TK version of the solitaire game Once In a Lifetime.
Quick TK - An interface builder for TCL/TK
Squorpion - Tic-tac-toe on steroids
Tasteroids - Asteroids in TCL/TK
tEdit - A simple tabbed text editor written in core TCL/TK
TKAtaxx - An implementation of the popular Ataxx arcade game
TKDiff - A graphical front end to the diff program
TK Overload - A logic game
TKTetris - Tetris in TCL/TK
TKVertigo - Yet another Samegame Clone
VideoPoker - Plays Jacks or Better video poker
ZenLoops - A game or maybe a meditation