Before you begin
A rescue adventure for the 24XX rules
Fourteen people work the pumps at Well Nine, four kilometers under the ice. Thirty-one hours ago they stopped answering. Now the only thing on the line is their voices, all together, counting down.
Your character appears here: skill dice, gear (and what's broken), injuries, your ally, and the Count.
24XX rules are CC BY Jason Tocci. This demo uses rules from the 24XX System Reference Document (SRD) version 1.4 by Jason Tocci (24xx-srd.carrd.co), licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0/); rules are summarized in our own words. This is not an official 24XX product, is not part of Jason Tocci's 2400 series, and is not affiliated with or endorsed by Jason Tocci. The adventure "The Silence at Well Nine," the Underice setting, and its characters are © 2026 RPG Demo Library. All rights reserved. The 24XX SRD is free at jasontocci.itch.io/24xx.