About crawlers.cc
crawlers.cc is a free web app for game masters running Dungeon Crawler Carl tabletop RPG sessions. It was built for the Dungeon Crawler Carl TTRPG based on Matt Dinniman’s book series, and works alongside the official Renegade Game Studios RPG releasing October 31, 2026.
As GM, you generate a dungeon floor, reveal it tile by tile as your party explores, and share a live map with the whole table through a simple session code. Character stats, loot, achievements, and session notes stay tracked in one place; hidden threats and secrets stay on your side of the screen.
Players need nothing installed and no account; they open the session code on any device and follow the live map. You do the storytelling; crawlers.cc handles the bookkeeping.
Open source
crawlers.cc is an open source project. The code lives on GitHub; bug reports and feature ideas are welcome there or by email.
Unofficial
crawlers.cc is an independent, fan-built tool. It is not affiliated with Matt Dinniman or Renegade Game Studios.