One of the most revolutionary things about the original DOOM was its customizability. Built from the ground-up to be easily modified, DOOM (1993) and DOOM II may not have created the PC modding scene, but they sure kicked it into high gear.
To this day, DOOM is one of the most frequently and passionately modded games around. Looking to dip your toe into that vast ocean? Here are some tools you’ll need to get started.
1: A Modern Engine
If you want to play the first entry in the DOOM series in its original, purest form, you need a PC from 1993 lying around somewhere. Considering that’s fairly unlikely, it’s a good thing there are lots of ways to play it on modern systems. For the closest to the O.G. experience, you’ll want a DOS emulator like DOSBox.
But if you really want to get into some serious modding action, you need a version of the DOOM engine designed to run natively on current-day tech. For that, look no farther than ZDoom.
This port runs natively on Windows, Mac and Linux, and allows you to play any game based off the original DOOM engine. But it does a lot more, adding features not found in the original games (and probably barely dreamed of in 1993) like jumping, crouching and swimming, as well as aiming up and down. It also introduces higher resolutions, more sound and texture formats, fully customizable monsters and items, and a lot more.
Note that the original ZDoom has been retired, but development continues in the form of GZDoom. The download page will steer you where you need to go.