Source: Steam Community (opens in a new tab)

- Engine changed to Uzdoom (logos and all game references changed).
- Fall damage system improved (No more damage on small falls and more damage on very high falls).
- Updated lighting (Lava now has a dangerous glow).
- Improved some tutorial messages (Now you know you don't have to hold the right mouse button for the scope).
- Improved some textures.
- Geometry improvements (You could fall off an edge you weren't supposed to).
- Other minor adjustments that were bothering me.