REACTOR hosts a high-energy dance music event in the Attic at Heyday featuring Melbourne-based DJ and producer KUMI, known for trance, UKG, drum & bass, and hard house with over 1.5M streams, and Robustt, a leading figure in Australia's UK Garage, jungle, and grime scene with support from artists like Sammy Virji. Scheduled for April 25, 2026 (ANZAC Day), this single-day event runs from 9 PM to 3 AM, offering house, trance, and techno in the Attic alongside party tunes, R&B, and throwbacks in the lobby. Specials include $10 entry before 10 PM, 2-for-$10 vodka mixes from 9-10 PM, and $10 cocktails. The night highlights emerging electronic talents with genre-spanning sets built for the dancefloor.