Anyone know how to use id Tech 1 or get it?

[Detective Parks]

I'm trying to make my own mod for DOOM containing reskins and some amazing maps ideas I had. My only problem is I don't know how to even open or aquire id Tech 1 (Doom Engine). Does anyone know how?

[Kaiser Ducky]

I'm not sure you can aquire id Tech, but for map making, I recommend Doom Builder. It's pretty easy to use, and it has everything you're looking for. They have tutorials on the site too ;)

doombuilder.com

[elderstyx]

Reskinning and reprogramming is very easy with ZDoom: http://zdoom.org/Download
It uses a coding method called DECORATE, so you can make a .txt file and drop it over ZDoom.

For mapping, use Doom Builder like Munincipal Rose said.