Breakable pickups, further improved AI, new effects, more bug fixes, further depth given to the RPG systems, weaponry improvements and much more. It all can be viewed here. or a mostly complete list of ALL of the mod's features developed over the course of 2.2 years here.
"GMDX feels more like the game the designers intended than the wonderful but flawed product that hit the shelves in 2000."
- Wildcat Phoenix
"A true, remastered edition of the original Deus Ex. From small things such as breakable, sensitive objects like in Human Revolution to significant, enhanced changes to the gameplay and graphics. Also, yes, lots of bugs and issues are fixed in this mod."
"Feeling the sheer joy that I have played almost 7.5 hours so far is unbeatable."