TCSG is a game where you and several friends create a science-fiction world together and then role play as people in that universe. To play, start by making your character using the 8 steps below; details about the universe will be filled in by everyone as you go along. The classes listed are a form of specialization, giving your characters a wide list of upgrades and abilities to grow later. The locations listed are examples, and if you don’t want to play in a single solar system, you can change the names out for sets like “Sol, Proxima Centauri, Zeta Reticulum, Cassiopeia, Sagittarius C,” or anything your party likes.
All players contribute to the plot. There is a little lore introduced in the rulebook, which might give players some direction if they otherwise had none; but the facts stated by the characters and Narrator about the world are canon as soon as they are said and rolled for. Players contribute to the story through their characters: people with sets of skills, traits, and personalities that treat the fictional universe much the same as we treat reality. Characters can use their skills to alter their immediate surroundings and do things that a person would normally be able to do.
There is a meta level of story contribution for players to engage in, called “Technobabble.” Technobabble is used to introduce new story elements to your setting. When you technobabble, roll a d20 and add nothing. If you rolled an 11 or above, you succeed at Technobabble. If you roll an 8, 9 or 10, that is a miss; the element you introduced does indeed exist, but one or more of the details might not be correct. If you rolled a 7 or less, you have failed, and the element you tried to introduce does not exist. The only requirement is that the story element you are adding is supported by the fiction. All players must agree that the Technobabble makes sense for the setting. Technobabble can answer any of the following questions, or be improvised on the fly:
Who are they?
Where are they?
Anything special to note about them?
Jot down a few notes about how they act, talk and look – if necessary, create a new character for them.
Are we coming here to meet someone specific?
What is unique about this place?
What’s the one-sentence history of this place?
What are the sights, sounds and smells?
How does this place make you feel?
Who lives here?
Technology available in shops
What is it called?
What does it do?
How Much does it cost?
Where is this story element taking place?
What is going on here?
Who all is involved?
What sets this element apart?