GameStat Library
- An application and open source library for querying status of game servers.
- http://dev.int64.org/gamestat.html

asq - Mame Cabinet Front End
- A unix curses display for mame/xmame that can select what can be played using mame cabinet controls.
- http://marginalhacks.com/Hacks/asq/

FreeGameCam
- Tool for Windows to periodically take screen captures of what you are playing and display the most recent on the web for others to view.
- http://www.freegamecam.com/

Alternative Game Server Monitor
- A utility for Windows which locates and monitors game servers for many popular LAN and Internet games.
- http://www.agsm.net/

Kali
- Allows play of IPX games over TCP-IP.
- http://www.kali.net/

GameRanger
- Macintosh multiplayer online gaming service.
- http://www.gameranger.com/

Roger Wilco
- Real-time voice chat for players on a network team.
- http://rogerwilco.gamespy.com/

Microsoft DirectX
- Libraries that are used by many Windows games.
- http://www.microsoft.com/windows/directx/

ResLink
- Automatic resolution changer for old games.
- http://home.online.no/~kr-lund/ResLink.htm