Steampunk International Steampunk International

festival

Clockwork Alchemy

Annual steampunk convention held in the San Francisco Bay Area, featuring cosplay, an artists' bazaar, and themed programming each weekend.

United States

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Clockwork Alchemy is an annual steampunk convention based in the San Francisco Bay Area, California. Each edition carries a distinct theme; past themes have included Villains and Heroes, Aetheric Ocean, and Gaslight Fantasy, with the 2026 event themed Rogue Makers & Air Pirates.

The convention takes place over a single weekend and includes an Artists' Bazaar, cosplay with published costume and props guidelines, and opportunities for attendees to volunteer or join staff. The event is held at the SF Grand Bay hotel.

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