COSine 2025 – January 22-24 at The Embassy Suites

Join us for a weekend of science fiction, fantasy, and horror!

If you are a dealer, artist or participant, please click here, and then contact the appropriate person/group.

Day passes available at the door!

Think you might already be registered? Click here to check, using our experimental registration lookup tool.

NOTE: By registering for COSine 2025 and providing us with an email, you are opting in to be contacted with information pertinent to COSine and First Friday Fandom. We will never sell your email or personal information.

Details Price Qty
Adult Weekendshow details + $50.00 USD  
Adult Weekendshow details + $55.00 USD   Goes On Sale
November 1, 2024
Student Weekendshow details + $40.00 USD  
Student Weekendshow details + $45.00 USD   Goes On Sale
November 1, 2024
Child (5-12) Weekendshow details + $10.00 USD  
Supporting Membershipshow details + $25.00 USD  

  • COSine 2025
     January 24, 2025 - January 26, 2025
     12:00 pm - 5:00 pm


Venue Phone: (719) 599-9100

Venue Website:

7290 Commerce Center Dr, Colorado Springs, Colorado, 80920, United States