Robbins, Ben -- Microscope

A small RPG with an outside-in model. A group of players (no GM) decide how the story begins and ends, and then they go in and fill in how everything got there and why. "The story" may be a millenium of empire or a day in the salt mines, and you can focus in on any given subset and keep going. (The designer's aim is bigger canvases rather than constrained ones, mind you.)

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