GZDoom-CRT is fork of GZDoom with a series of minor modifications to the UI and rendering (along with its own default configuration) for functioning better on CRT TVs, CRT monitors, and other low-resolution pixel-perfect displays. Incidentally, this also gives it a retro-looking aesthetic overall, making the look and feel similar to Crispy Doom or Chocolate Doom, but with the advanced features of GZDoom.

• Sensible default configuration for CRT displays (update options in "Set Video Mode" menu to meet your specific needs).
• Config will now load from the program directory first, by default, making it easier to set up per-WAD configurations.
• Added new scaling options, aspect ratios, and a "Stretch Buffer" option to support "super resolutions" like 2560x240.
• Scaled UI elements and fonts to be more readable on low-resolution displays.

Copyright (c) 1998-2025 ZDoom + GZDoom teams, and contributors

Doom Source (c) 1997 id Software, Raven Software, and contributors

Please see license files for individual contributor licenses

Special thanks to Coraline of the EDGE team for allowing us to use her README.md as a template for this one.

To build GZDoom-CRT, please see the wiki and see the "Programmer's Corner" on the bottom-right corner of the page to build for your platform.

• https://zdoom.org/ - Home Page
• https://forum.zdoom.org/ - Forum
• https://zdoom.org/wiki/ - Wiki
• https://dsc.gg/zdoom - Discord Server
• https://docs.google.com/spreadsheets/d/1pvwXEgytkor9SClCiDn4j5AH7FedyXS-ocCbsuQIXDU/edit?usp=sharing - Translation sheet (Google Docs)