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The annual Slimelight Halloween party returns for a night of alternative music spread across three floors at Electrowerkz. Featuring a diverse soundscape ranging from Goth, Industrial, and EBM to Dark Techno and Synthpop, this edition promises a stellar lineup including an exclusive special guest performer. Please note: A ticket purchase does not guarantee entry. All attendees are required to adhere to the event's mandatory dress code and maintain a strictly alternative look; standard streetwear is not permitted. A physical photo ID is required for entry.

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The event takes place on October 17, 2026, across three floors at Electrowerkz located at 7 Torrens St, London EC1V 1NQ.
The lineup features Malefica, Blackdeath 1334, Steve Weeks, Ricardo Castro, and Qual, plus an exclusive special guest.
Attendees must adhere to a mandatory alternative dress code, as standard streetwear is not permitted, and bring a physical photo ID.
Tickets on Mood.