COSI After Dark: a 21+ Event! It's COSI without kids!

Grab your friends and start your weekend early with COSI After Dark, an evening event series exclusively for adults ages 21+. Each month showcases a different theme - from Wizard School to Dinosaurs - and each features activities, games, and experiences you can't get at any other visit to COSI. Explore the building, ride the High Wire Unicycle, and best of all, experience COSI without kids, all while enjoying craft beer and themed cocktails.

Next Theme: Whodunit Murder Mystery (September 28)

Murdercon is the country’s largest convention for fans of true crime novels, websites, and most importantly, podcasts. Each year, the podcast hosts with the largest following and their fans gather at the convention center for a weekend of all things murder and mayhem. It was all fun and games…until someone had to go and actually get murdered. The rising star host of a new popular podcast was set to make their big Murdercon debut but was found dead just as the convention was about to start. You and all of the other convention attendees are already amateur detectives, so the Murdercon organizers need your help to solve the crime. Can you put together the clues and crack the case?

Buy Tickets         Subscribe to email

Planetarium:

Coming soon

Buffet:

6pm-8:30pm

Coming soon


Admission:

Member - $14
Groups (10 or more) - $16
Nonmember (in advance) - $18
Nonmember (at the door) - $20

No time to eat before coming? Add food to your COSI After Dark ticket. Offering a variety of small plates, guests who purchase this food ticket receive a wristband for all-you-can eat menu items. Buffet is open from 6:00-8:30.

Buy Tickets


Upcoming Themes:

Sept 28, 2019: Whodunit Murder Mystery A murder has been committed and it's up to you to solve it! Look for clues and suspects around the museum as you conduct your investigation and submit your final guess for a chance to win the grand prize.
Oct 24, 2019: Halloween Dress up in something spooky and come to COSI After Dark: Halloween! Learn about the science of fear, compete in a costume contest, and more.
Nov 7, 2019: Superheroes It's a bird...it's a plane... it's COSI After Dark! Learn the science behind your favorite superheroes.
Dec 12, 2019: Toys It's the most wonderful time of the year! Feel like a kid again as you explore the science of everyone's favorite toys.
Jan 9, 2020: Wizard School Never received your acceptance letter? Now is your chance to attend Wizard School! Bring your best robes and wands and represent your house at COSI After Dark.
Feb 6, 2020: Dinosaurs Dinosaurs aren't just for kids. Walk among giants in the American Museum of Natural History Dinosaur Gallery and enjoy dinosaur-themed activities.
Mar 12, 2020: True Crime Calling all amateur sleuths and armchair detectives! This COSI After Dark is for anyone who likes a little mystery along with their science.
Apr 23, 2020: Prom Throw on your old dress, rent a tux, and get a re-do on those awkward Prom photos.
May 14, 2020: May the Fourth Be With You Calling all pilots, Jedi, and bounty hunters: Explore the planets of the Star Wars universe, meet your favorite heroes and villains, and even dress up yourself!
June 11, 2020: Puzzles and Games Enjoy some friendly competition and play some of your favorite games and puzzles - both new and old!
July 9, 2020: Carnavale Celebrate a "carnaval" in Central Ohio and explore COSI's newest traveling exhibit from the American Museum of Natural History, ¡Cuba!
Aug 13, 2020: Summer Camp Feeling nostalgic for your days at summer camp? Revisit all of your favorite camp activities at COSI After Dark - this time without the sunburn.

Upcoming Themes:

Sept 28, 2019:

Whodunit Murder Mystery

A murder has been committed and it's up to you to solve it! Look for clues and suspects around the museum as you conduct your investigation and submit your final guess for a chance to win the grand prize.
Oct 24, 2019:

Halloween

Dress up in something spooky and come to COSI After Dark: Halloween! Learn about the science of fear, compete in a costume contest, and more.
Nov 7, 2019:

Superheroes

It's a bird...it's a plane... it's COSI After Dark! Learn the science behind your favorite superheroes.
Dec 12, 2019:

Toys

It's the most wonderful time of the year! Feel like a kid again as you explore the science of everyone's favorite toys.
Jan 9, 2020:

Wizard School

Never received your acceptance letter? Now is your chance to attend Wizard School! Bring your best robes and wands and represent your house at COSI After Dark.
Feb 6, 2020:

Dinosaurs

Dinosaurs aren't just for kids. Walk among giants in the American Museum of Natural History Dinosaur Gallery and enjoy dinosaur-themed activities.
Mar 12, 2020:

True Crime

Calling all amateur sleuths and armchair detectives! This COSI After Dark is for anyone who likes a little mystery along with their science.
Apr 23, 2020:

Prom

Throw on your old dress, rent a tux, and get a re-do on those awkward Prom photos.
May 14, 2020:

May the Fourth Be With You

Calling all pilots, Jedi, and bounty hunters: Explore the planets of the Star Wars universe, meet your favorite heroes and villains, and even dress up yourself!
June 11, 2020:

Puzzles and Games

Enjoy some friendly competition and play some of your favorite games and puzzles - both new and old!
July 9, 2020:

Carnavale

Celebrate a "carnaval" in Central Ohio and explore COSI's newest traveling exhibit from the American Museum of Natural History, ¡Cuba!
Aug 13, 2020:

Summer Camp

Feeling nostalgic for your days at summer camp? Revisit all of your favorite camp activities at COSI After Dark - this time without the sunburn.