Godot
- An applet that plays Go, written by Jens Lieberum. The best games are kept in a highscore list and can be replayed.
- http://swiss2.whosting.ch/jenslieb/godot/godot.html

AIGO
- AIGO is a Go program for PalmOS. Shareware.
- http://www001.upp.so-net.ne.jp/iizuka/AIGO/

Aya
- Go playing program. Aya was placed 5th in 21 Century Cup in Canada.
- http://www32.ocn.ne.jp/~yss/index.html

AUGOS
- The Automatic Go Player. A program for Windows that can play the board game Go.
- http://www.augos.com/go/augoseng.html

Go game machine
- Plays only on a 9x9 board. Intended as an introduction to Go, particularly for children.
- http://www.nihonkiin.or.jp/lesson/index2-e.htm

Explorer
- Explorer is a program that plays Go. Winner of the first Computer Games Olympiad in London 89.
- http://www.cs.ualberta.ca/~mmueller/cgo/explorer.html

Atari-Go
- Plays a form of atari-Go (first capture Go) on a 10x10 board.
- http://www.cis.hut.fi/praiko/atarigo/

SmartGo
- Go-playing program and Go game editor. Free 9x9 version available for download.
- http://www.smartgo.com/

OpenGo
- Intended as a workbench for prospective programmers of go engines, this program provides some simple built-in Go opponents for users to play and supports pipe and modem players.
- http://www.inventivity.com/OpenGo/

Mick's Computer Go
- News and information about computer programs that play go.
- http://www.reiss.demon.co.uk/webgo/compgo.htm

Go++
- Go playing program. Winner of numerous international computer Go tournaments. The result of twenty years research and development.
- http://www.goplusplus.com

Gnu Go
- A free cross-platform computer go opponent.
- http://www.gnu.org/software/gnugo/gnugo.html

Many Faces of Go
- The 1998 World Computer Go Champion, and ten time US Computer Go Champion. A strong Computer Go opponent.
- http://www.smart-games.com/

Computer Go Ladder
- An informal competition between various go-playing computer programs.
- http://www.cgl.ucsf.edu/go/ladder.html

TurboGo
- Go-playing computer program and screensaver, plus an online joseki database which replays interesting sequences.
- http://www.turbogo.com/