A typical game of klotski.

gnome-klotski

Klotski puzzle game for GNOME

This is a clone of the popular Klotski game. The objective is to move a patterned block to a given place using the mouse, in as few moves as possible. Other blocks will need to be moved out of the way.
2D platform game about the epic struggle of balls

oneisenough

2D platform game about the epic struggle of balls

One Is Enough, a 2D platform game in which a communist ball needs to convert capitalist balls into fellow communist balls. More and more capitalist balls will be issued by the bank, creating new enemies.
locate and modify a variable in a running process (GUI)

gameconqueror

locate and modify a variable in a running process (GUI)

GameConqueror is a GUI based on Python and GTK+ using scanmem to locate the address of a variable in a running process. This can be used for the analysis or modification of a hostile process on a compromised machine, for reverse engineering, or as a "pokefinder" to cheat at video games.
atomix puzzle game

katomic

atomix puzzle game

KAtomic is a puzzle game in which the player slides atoms around the board to assemble a molecule.
falling blocks game

kblocks

falling blocks game

KBlocks is a single player falling blocks puzzle game, a Tetris-like replacement for KSirtet.
game about consciousness and isolation

between

game about consciousness and isolation

Between is a pixelated art game for two players by Jason Rohrer.