OSR CON

Name: OSR CON
Start: 2026-04-18T08:00:00-04:00
End: 2026-04-18T22:00:00-04:00
Location: 300 Littleton Rd, Chelmsford, MA

Schedule

Sat Apr 18 2026 at 08:00 am to 10:00 pm

UTC-04:00

300 Littleton Rd, Chelmsford, MA | Chelmsford, MA

Let's celebrate the legacy of old school role playing together! Adventure awaits, 4/18/2026... osrcon.com

300 Littleton Rd, Chelmsford, MA, United States

Event Location & Nearby Stays:

Know what’s Happening Next — before everyone else does.

Sat, 18 Apr at 08:30 pm Four on the Floor at Princeton Station

Princeton Station

Sun, 26 Apr at 07:00 pm Lamb Of God, Kublai Khan TX & Fit For An Autopsy Tickets

Fenway Park, Boston, MA

Sat, 02 May at 08:00 am E-Waste & Recycle Day Fundraiser

230 North Rd., Chelmsford, MA

NONPROFIT

Sat, 02 May at 04:00 pm Run for the Roses A Kentucky Derby Event for ROHHAD Awareness

The Establishment Chelmsford

KENTUCKY-DERBY NONPROFIT

Sat, 02 May at 07:00 pm Adult Prom: Night Under The Stars

Chelmsford Center for the Arts

KIDS NONPROFIT

Sun, 08 Mar at 01:30 pm Your Career Catayst (In Person + Online)

Chinese Bible Church of Greater Lowell

Sun, 15 Mar at 03:00 pm ASL Practice Group at the Chelmsford Public Library

Chelmsford Public Library

BUSINESS CONFERENCES

$WFPPS SERVICE IT \u2013 Managed Services Showcase$

Thu, 19 Mar at 03:00 pm WFPPS SERVICE IT – Managed Services Showcase

Pressed Cafe

Sat, 18 Apr at 08:00 am OSR CON

300 Littleton Rd, Chelmsford, MA

TRIPS-ADVENTURES