Sanctum Festival 2026, billed on the ticketing pages as Sanctum Dark Music Festival, runs Friday, October 30 and Saturday, October 31, 2026 at Thalia Hall, 1807 S Allport St, in Chicago's Pilsen neighborhood, with the attached Tack Room downstairs as a second room. It is a Halloween weekend event run by Sanctum, the Chicago promoter behind sanctumfest.com, and the 2026 poster also credits Substance as co-presenter. The TicketWeb listing, checked 3 Oct 2026, gives doors at 6pm and music from 7pm both nights. The official info page says the Thalia Hall shows are 17+, the Tack Room is 21+, and the afterparties, which are still TBA, will be 21+.
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The 2026 lineup is 14 live acts across the two nights. The Chicago Reader's preview from 2 October 2026 lists Friday as Zanias, Buzz Kull, Crash Course in Science, Kontravoid, Automelodi, Sleek Teeth and Grave Love, and Saturday as A Split-Second, Aux Animaux, Sacred Skin, MVTANT, The Treasury, Pink Stiletto and Children's Crusade. The TicketWeb listing adds visuals by Videowaste and DJs still to be announced, and the poster lists Wildcat Shadow and Sindy Vicious as hosts. The official site at sanctumfest.com shows the lineup flyer and links Day 1 tickets, Day 2 tickets and 2-Day passes; set times had not been posted when we checked on 3 Oct 2026.
Thalia Hall is a multi-level concert hall with a second-floor balcony, Opera Box seats and the Tack Room downstairs, and the official info page says the building is ADA compliant and wheelchair accessible, with elevator access to the upper floors per the venue FAQ. For 2026 the Chicago Reader reports Sanctum worked with Chicago sound firm Big Audio to add six extra subwoofers to the room. The festival's own listing promises a VHS Dungeon, a photobooth, live analog visuals, installations, vendors, drag performances and a costume contest with the theme Blasphemy, and the Reader notes costumes are strongly encouraged. What sets Sanctum apart from a typical rave is the music: post-punk, gothic, darkwave and industrial bands playing live, in a historic concert hall, on the two nights of Halloween weekend.

