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Seattle Worldcon 2025 is powered by members who actively participate in creation of the shared experience of the Worldcon. Worldcons are funded almost entirely by memberships. Our commitment to equity and inclusion leads us to offer membership options which are below the true per-member cost, which at projected attendance levels we estimate at $275.
Wednesday, August 13, 2025 - Sunday, August 17, 2025
Seattle, USA
Free
Seattle Worldcon 2025 is powered by members who actively participate in creation of the shared experience of the Worldcon. Worldcons are funded almost entirely by memberships. Our commitment to equity and inclusion leads us to offer membership options which are below the true per-member cost, which at projected attendance levels we estimate at $275.
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