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Welcome to Sidereus
The Choice is Yours
After 15 years of development and gameplay, the Sidereus world approaches its long awaited climax. Heroborn must choose to stand on the side of Light or the side of Shadow, caught up in an endless game to decide the fate of the world.
As a Player, your choices will have a real and lasting impact on the story of the world for years to come. From merchant to warrior, every Character's path will change the flow of the game - deciding how the very landscape of the world (both in-game and out-of-game) will be shaped. This is a unique opportunity to make an impact that will last for the lifetime of the game!
New Player Guide
Whether you are new to LARP in general, a veteran who hasn't played Sidereus before, or an old player who is eager to return - our New Player Guide will walk you through everything you need to know to get started.
Sidereus Discord
Join our Discord to chat with other players, get access to rules and lore, and learn more about the community! We love to meet new people, and will be happy to answer any questions you might have!