Donjon (French for "keep") is an independently published fantasy tabletop role-playing game by Clinton R. Nixon.

Based on the results of die rolls in conflict resolution, players add new facts to the situation.

This gives players power to steer the adventure in directions that the game master does not expect.

Donjon, InSpectres, and Children of the Sun (2002) were finalists for the initial Indie Game of the Year award, but they lost to Dust Devils (2002) by Matt Snyder.

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