First of all GNU Backgammon is ... work in progress. Don't blame us if
- a feature isn't implemented yet
- a feature doesn't work correctly
- gnubg crashes
- your system suffers after gnubg is installed

Don't forget 
- it's free software (free as in "free speech", not in "free beer")
- we are all volunteers
- we need feedback and bug reports
- we need your help

GNU Backgammon works on
- MS Windows operating systems
- Linux
- FreeBSD
- Solaris
- MacOS 10

GNU Backgammon is available in different languages
- English
- German (nearly finished)
- Italian (3/4 finished)
- Japanese (2/3 finished)
- Danish (1/4 finished)
- Turkish (1/4 finished)
- Icelandic (1/4 finished)
- French (not ready yet)

GNU Backgammon has a
- Graphical User Interface (GUI) with 2D- or 3D-Animation
- A command line modus (CLI) with support of the script language python

With GNU Backgammon you may play
- backgammon, nackgammon or hypergammon
- games, matches or sessions

Gnubgs analysing functions allow you to
- get hints during the game (tutor)
- evaluate positions 
- analyse or rollout positions, games, matches or sessions

You can
- setup, edit and save positions, games, matches and sessions
- replay games, matches and sessions
- record annotations
- store error rates for different players

GNU Backgammon imports matches and sessions from
- Fibs
- Gamesgrid
- TrueMoneygame
- Netgammon
- Snowie
- Jellyfish

GNU Backgammon exports positions, games, matches and sessions into
- *.pos
- *.mat
- plain text
- different html formats
- png
- LaTeX
- (Encapsulated) Postscript
- PDF

With GNU Backgammon you may choose between the following dice generators
- Manual dice settings
- from a file
- a dice generator created by the user
- Ansi
- Blum, Blum and Shub
- BSD
- ISAAK
- MD5
- Mersenne Twister
- www.random.org

GNU Backgammon uses different databases to rise its skill
- gnubg.weights / gnubg.wd
- gnubg_os.bd
- gnubg_ts.bd
- hypergammon (1,2,3)
- Hugh Sconyers databases