The original Doom came out over 20 years ago, and by now it's pretty dated. This mod brings Doom up to modern triple-A videogame standards. How? By adding random Loot Boxes, of course!
Weapons and powerups are removed from the map, and will sometimes be replaced with crates. All enemies have a small chance of dropping a key. Use a key to open a crate and get a random weapon or powerup.