COSine 2020 Information


COSine 2020

COSine 2020
January 17-19, 2020
Hotel Eleganté Conference & Event Center
Colorado Springs, CO

Science Fiction Convention

COSine is a literary-focused science fiction convention that has been running in Colorado Springs since 2004. It is run by First Friday Fandom. While we enjoy TV, movies, games, and comics as much as the next science fiction and fantasy fan, we wanted to keep the focus on the books and stories that first captured our hearts and drew us to the genre.

Registration Information

Advance Rates
$30 through October 31, 2019
$45 through December 31, 2019
At-Door Rates
$50: All 3 Days

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Update COSine 2020 Information

Last updated: January 10, 2020


Previous/Future Events

COSine 2020  —  January 17-19, 2020
COSine 2019  —  January 18-20, 2019
COSine 2018  —  January 19-21, 2018
COSine 2017  —  January 20-22, 2017
COSine 2016  —  January 22-24, 2016
COSine 2015  —  January 23-25, 2015