itch.io

You buy Delta Touch on Google Play store (or find some other Zandronum port for mobile), you set it up, you put the mod in the mod folder that you specified, you don't forget to put in Ultimate Doom iwad so the game can run, you play modded doom

I tried the demo, and plan on getting the game.

But I gotta ask, is it better if I buy it here on Itch or if I buy it on Steam?

This game changed my life! I had nothing to live for and now that i played this game now i know that the salvation is in the BEANS!