openmsx

MSX emulator that aims for perfection

openMSX is an open source MSX emulator that uses a unique emulation model, which tries to achieve the highest level of accuracy possible. It allows emulating a large number of different MSX machines. Combined with the C-BIOS ROM-files that are available in a separate package, you can run game ROM-files without the need for non-free BIOS ROM files.
dungeon crawl game - text-based interface

nethack-console

dungeon crawl game - text-based interface

NetHack is a wonderfully silly, yet quite addictive, Dungeons & Dragons-style adventure game. You play a character from one of many classes (such as wizard, ranger, or tourist), fighting your way down to retrieve the Amulet of Yendor (try saying THAT one backwards!) for your god. On the way, you might encounter a quantum mechanic or two, or perhaps King Arthur, or - if you're REALLY lucky - the Ravenous Bugblatter Beast of Traal.
Drive a car across the moon

moon-buggy

Drive a car across the moon

Moon-buggy is a simple character graphics game, where you drive some kind of car across the moon's surface. Unfortunately there are dangerous craters there. Fortunately your car can jump over them!

games-card

Debian's card games

This metapackage will install card games.
Baldur's Gate II: Shadow of Amn shown running via gemRB

gemrb-baldurs-gate-2

GemRB binary and configuration for Baldur's Gate 2 game

GemRB (Game Engine Made with preRendered Background) is a new implementation of the original Infinity Engine (the one of Baldur's Gate, Icewind Dale, Planescape: Torment, ...) to Linux/Unix, MacOS X and Windows with some enhancements.
MIDI player

playmidi

MIDI player

Playmidi is a MIDI file player that will play back using FM, GUS, SoundBlaster or external MIDI. It also supports Creative Music Files (CMF), Microsoft RIFF (RMI) files and large MIDI archives from games such as Ultima 7.