COSine Science Fiction Convention

January 23-25, 2015

Join us in Colorado Springs at the foot of Pikes Peak for this gathering of science fiction and fantasy fans, authors, and artists. Our program line-up will include a variety of interesting panels, a great art show, ConSuite, video and animé, dealers room, our annual multi-author reception and book signing, scheduled gaming, and much more. Come help us celebrate the 11th COSine!

Check the Guests page for full list of attending authors and program participants.
The Programming, Art Show, and Gaming Schedules have been updated!

Take a look under "At the Con".

Want to attend?

COSine begins tomorrow! You can sign up in person at the convention. COSine has a membership fee that includes all activities and our renowned Con Suite with food and drinks you can enjoy all weekend.


COSine is proud to feature Nathan Lowell as our Guest of Honor for 2015. Nathan Lowell is the author of the acclaimed Golden Age of the Solar Clipper series, as well as the Tanith Fairport adventures. We are also delighted to feature author Wil McCarthy as our Science guest speaker, and author Connie Willis and educator Courtney Willis as our special guests.


COSine 2015 will be returning to the same hotel we have used in the past, now called the Hotel Eleganté Conference & Event Center, located at the south end of Colorado Springs, just off I-25. The hotel has great function space for our convention, and the best view ever from the dealer's room!

Call for Volunteers!

Want to help out? We would love to have you! If you would like to lend a hand, contact the committee member in charge of any area you are interested in, or you can volunteer at the convention itself. You can come to meetings of First Friday Fandom to see how we organize the convention and share your opinions.

Get in touch with us
COSine Science Fiction Convention
3640 Arborview Court
Colorado Springs, Colorado 80918-4726
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