Megalloween by Festival du Soir

For two decades, Megalloween has transformed Halloween into a true collective experience: a night where partying meets horror, where stage sets come alive, where creatures emerge from the shadows, and where thousands of people gather to experience far more than just a simple costume party. 

Megalloween is driven by a unique energy: spectacular costumes, a roaring dance floor, stagings worthy of major horror films, and an atmosphere you won't find anywhere else. At every turn, a surprise appearance, a sudden thrill, or a lifelong memory can arise.

For this 2026 edition, Festival du Soir is dreaming even bigger. For one night only, a dedicated stage will become a cursed territory entirely devoted to the universe of Halloween.

Celebrating 20 years is a big deal. But at Megalloween, we celebrate in the dark. 
Prepare your costumes. Prepare your screams. Prepare to experience the most monstrous Halloween night of the year. Costumes are mandatory.

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General Info

📅 Date: October 31st, 2026 – select directly in the ticket selector
🕙 Hours: 8:00 PM – 6:00 AM
📍 Location: Palexpo – Route François-Peyrot 30, 1218 Le Grand-Saconnex, Switzerland
👤 Age requirement: 18+ only
♿ Accessibility: accessible to individuals with reduced mobility 
❓ Questions? You can consult the FAQs here