3. Download the Quake source

Download the Quake source code, q1source.zip, from ftp://ftp.idsoftware.com/idstuff/source/q1source.zip. This zip file contains all versions of Quake1/QuakeWorld.

After compiling (read on first!), you will get version:
LinuxGL (0.98) QuakeWorld 2.40 (as of this writing, Aug 19, 2025)

Make a directory to hold the quake source:
mkdir q1src cd q1src unzip ../q1source.zip cd QW cp Makefile.Linux Makefile