Through the Ansible is a game I wrote a while back. It's kind of an Ursula le Guin tribute game. If you haven't read any of her "Hainish" stories, you might not understand some of the terms I've used here. Here's the rules in 500 words or so. Let me know what you think!
Through the Ansible is a play-by-post game for three or more players. It takes place in a single thread.
In Through the Ansible, you play a Mobile from the Ekumen, sent though space to a new, unexplored world. Your posts to the thread will represent that Mobile's reports, sent through the Ansible back to the Ekumen. Your reports can be anything: Descriptions of the local customs, tales of exciting adventures, musings on the meaning of truth, or stories of your character’s relationships with the other Mobiles, and their relationships with the local people. The Ekumen values any knowledge, any understanding. However, the other Mobiles may contradict your reports. Far from home, the nature of truth becomes a slippery thing. Reports are inconsistent, contradictory and vague. It's up to you, as a player, to decide for yourself what part your character will play in the story, to interpret the world through your character’s eyes, to present a version of the world that reflects your character as much as the new world.
Players should write a brief description of their character, 200 words or (preferably) less. Avoid a lengthy backstory. Describe the world your character comes from, any physical differences from Terran humans, and the things that are important to the culture there.
You now need to select two keywords. These should be words that you want to be important to the game, but that you don't have a strong preconception about how they'll be interpreted. Words with stronger implicit meanings are probably better than vague words, but that's up to you. Write your keywords at the end of your character description.
One player should make a list of all the keywords chosen by the players. Each time a player posts, they must choose at least one of the words from this list, and use it in their post. You may wish to use bold type to make this use clear to the other players. You can use the word in any way you'd normally include a word in your post. It doesn't have to be the central theme of your report, or even an important part, although strongly defining your interpretation of the keyword might give your report a greater influence on the game.
Once you've used all the keywords in the list at least once, you can't post anymore, The game is over for you. The other players may keep posting until they too have used all the keywords. Finishing before the other players is not a bad thing. Your reports have set the scene for the story that will be concluded by the other players.
It's expected and encouraged that posts will be inconsistent with each other. One report may describe a disastrous flood, another a punishment from the gods, and another a glorious cleansing. One might even deny, or ignore, the event entirely. That's up to you. What is "true", what "really happened" is never resolved, except by what is referred to by the reports.
Other People's Characters: It's ok to write about the actions of other people's characters, in terms of what they are doing, and what happens to them. Explicitly, it's ok to report that their character has died.