Gnome Simple Stateful Music Player is a small, simple music player that keeps out of your way whenever possible. It remembers what you were playing when you exited, and continues in the same place the next time you start. It doesn't build a database of your audio tracks: instead it works with your files and directories directly. It remembers tracks you have been playing recently, and allows you to pick them up where you left off.
Hearts is an implementation of the classic card game for the GNOME desktop, featuring configurable rulesets and editable computer opponents to satisfy widely diverging playing styles. It features various rulesets with configurable options, multiple computer opponents with differing styles of play, drag and drop adding of new opponents, and easy creation and modification of opponents through the Lua scripting language.
Echelon is a GNOME panel applet that monitors a user-supplied list of game servers. The primary purpose is to watch the servers for the presence of specified player names, but other server information such as server name, your ping, number of players, maximum number of players, and a list of current players with their pings and scores are available and easy to access. It supports many types of games, but aims to eventually work with all games supported by qstat.
MudMagic Mud Client is a GTK/GNOME multi-platform MUD client. It provides aliases, triggers, multiple connections, plugins, MCCP, ZMP, MSP, tabbed sessions, ANSI color, and a game list that can be updated from mudmagic.com. It is configurable on a per-session basis. Plugins include an automapper, database, and note pad.