Glypha III is a Mac OS X port of the classic arcade game in which you are placed inside an Egyptian temple and forced to do battle with Sphinxes in order to gain the honour of a place in the High Scores. The game is based on Joust and features sound and animated graphics from the original Mac version.
Njam is a full-featured cross-platform Pacman-like game that uses the SDL library. It features single and multiplayer modes (local or network), duel games where players compete against each other to get more points, cooperative games where players cooperate to finish as many levels as they can, and great music and sound effects. It includes customizable level skin, many different levels, and an integrated level editor.
ZAP is a team-based Internet multiplayer game with 2D retro-style vector graphics. The control scheme is patterned after the arcade classic Robotron. It uses the Torque Network Library for its network transport layer. It supports multiple game types (Capture the Flag, Soccer, Football, Hunters, Rabbit, Zapmatch), configurable ship powers, and support for voice recording and gamepad controllers (not on all platforms).