It is based on Zdoom coded, a 3d-accelerated doom port, and its most recent version is 4.5.
How To Install?
This process includes a few steps, which are;
1. This application allows you to use the doom mods.
2. install GZDoom and from the zip file, extract the GZdoom folder from it.
3. Search for the GZdoom directory and move it to the WAD file
4. Download the GVDoom MOD of your choice.
5. Drag both the files (doom2.wad file and GZ doom.exe)
6. Here you go, your GZdoom has been installed, which lets you play games without any virus affection.