pydance is a dancing game written in Python, formerly named pyDDR. The idea is simple. There's a floor mat with arrows, and the game scrolls arrows up the screen to the beat while playing a song. When the arrows reach the top of the screen (not sooner and not later), the player hits the corresponding arrow on the pad, and given that it's hit on time with the beat, points are scored. Based on how well the dance is put together, s/he is graded at the end of the song. Both keyboard and mat play are supported.
Py Connect Four is an implementation of the classic, two-player, Connect Four game. Each player has a color, either black or red, and they take turns putting their pieces in. The first player with four pieces in a row at any angle wins the round. It is completely written in Python, and uses the PyGame library with the SDL library.
Pathological is an enriched clone of the game "Logical" by Rainbow Arts. To solve a level, you fill each wheel with four marbles of matching colors. Various board elements such as teleporters, switches, filters, etc., make the game interesting and challenging. New levels can be created using your favorite text editor.
Adventures on Planet Zephulor is a side scrolling action game written completely in python with the help of PyGame and SDL. Game play is simple and consists of finding power-ups, avoiding or killing monsters, and exploring various levels. There are a few hidden areas and branching paths.
Snowball is a jump'n'run game in which the player controls Tux the penguin through the levels. The objective is to guide a snowball safely to the exit. To achieve this, the player can create ice blocks, collect keys, use transporters, etc. The game comes with a built-in level editor.