Installing a .wad on GZDoom

So I am trying to play Idle Doom which is like a Cookie Clicker like version of Doom, which I dowbloaded from Doomworld but I don’t know what to do with it. I installed GZDoom via Flathub and I’m on Ubuntu, so if anyone could help me I would be grateful.

  • 0 user online
  • 1 user / day
  • 1 user / week
  • 1 user / month
  • 5 user / 6 month
  • 22 subscriber
  • 11 Post
  • 5 Comment
  • Modlog