Event poster for ExplorationWorks' Nightmare Affair 2025, an adult costume party, dinner, and auction with live music and dancing, scheduled for Saturday, October 25, at Great Northern Best Western, sponsored by Opportunity Bank of Montana. The poster features a stylized skull made of science and technology icons, with colorful symbols like beakers, test tubes, atoms, and gears, set against a dark background.

18th Annual Nightmare Affair Auction & Fundraiser

Join us for a spooktacular evening at the 18th Annual Nightmare Affair Gala on October 25, 2025, at the Great Northern Best Western Hotel from 6:00–9:00 pm. After dinner, stick around for music and dancing until 11:00 pm. This adults-only Halloween celebration promises a night of thrills and chills—all in support of science education.

Enjoy a delectable dinner, sip on science-themed cocktails, enjoy a science show, participate in our costume contest, and bid on an exciting lineup of items during our silent and live auctions. With live music by Ten Years Gone, the energy will stay high as we come together for an unforgettable night of fun and fundraising.

Can’t make it in person? You can still be part of the Nightmare Affair by joining our online auction, October 18–25, featuring a wide variety of unique packages.

NEW this year: Discounted Early Bird tickets are available through September 30—don’t miss out, tickets are limited!

For 18 years, ExplorationWorks has been at the forefront of delivering engaging science education to children and families across Montana. Your support at this event helps us continue inspiring the next generation of scientists, innovators, and leaders in Helena and beyond.