See also:
- All Mother - Game set on a futuristic Earth-like world setting.
- Beyond the Stellar Empire - Features rules, maps, program information, guides, list archives, and the Ringbone Gazette e-zine.
- Dune PBeM - An online play-by-email game based on Frank Herbert's "Dune". Players take on the role of a House in the Imperium and role-play it to success.
- Earthfall - Alternate Earth setting overrun by aliens.
- Exodus War - A turn-based, multiplayer tactical naval space combat game.
- Galactic Empires Central - Spaced oriented empire building game.
- Heritage - RPG set in the near future, with a series of events stretching from Antarctica to Mars.
- KJC Games' Warlord - Post holocaust world using 20th century weaponry. Features rule book download.
- Reiver Games - Star Empires 2, Atlantis and free games to download.
- Seraph Chronicles: Realm Wars - Galactic-based free form adventure. Features details on how to join, chronology, character roster, game rules, and contact information.
- Singularity - Galaxy-based computer moderated adventure.
- Star En Garde - StarEnGarde is a free PBeM game combining turn-based orders and e-mail list roleplaying. The genre could be described as Buck Rogers meets Star Wars meets Hitchikers Guide to the Galaxy.
- Star Throne - Multi-Player science fiction game of grand strategy and intrigue. Can be enjoyed either in role-play of your 'position' in the game, or as a pure 'war game'.
- Steam Trek - Adventures in an alternate history where Queen Victoria is out to rule the solar system. Players become crewmembers of Her Majesty's Aethership Dauntless commissioned by the United Kingdom of Planets.
- USI-RPG: Unified Space Intelligence - Play by email game set 800 years in the future.