Sources:

• https://en.wikipedia.org/wiki/List_of_text-based_computer_games
• https://peyre.x10.mx/GWBASIC/index.htm
• https://archive.org/details/gamesourcecode
• http://cvsweb.netbsd.org/bsdweb.cgi/src/games/
• http://gitweb.dragonflybsd.org/dragonfly.git/tree/v3.0.0:/games
• https://github.com/ctdk/bsdgames-osx
• https://github.com/jalbam/c_games

TODO:

• http://ascii.textfiles.com/
• http://freshmeat.sourceforge.net/projects/ladder
• https://sourceforge.net/projects/freakout/
• http://freshmeat.sourceforge.net/projects/terminal-etch-n-sketch
• http://freshmeat.sourceforge.net/projects/vibora
• http://blog.yjl.im/search/label/space%20shooter%20game
• ftp://ftp.microsoft.com/services/technet/windows/msdos/RESKIT/SUPPDISK/GORILLA.BAS
• https://en.wikipedia.org/wiki/Nibbles_(video_game)
• https://en.wikipedia.org/wiki/DONKEY.BAS
• https://en.wikipedia.org/wiki/Gorillas_%28video_game%29
• https://github.com/szantaii/bash-gorillas
• http://sh.sidenote.hu/projects/bash-gorillas/
• https://ftp.ibiblio.org/pub/linux/games
• ftp://sunsite.unc.edu/pub/Linux/games
• https://bluerenga.wordpress.com/2015/03/19/lost-mainframe-games/
• telnet aardmud.org
• telnet zombiemud.org
• telnet 99.249.157.57 2528
• telnet achaea.com
• http://www.telnet.org/htm/places.htm
• http://mewbies.com/acute_terminal_fun_telnet_public_servers_watch_star_wars_play_games_etc.htm
• See comments above Cavez of Phear
• Zork only has downloads for MSDOS