Doom 3 did not quite stand up against its predecessors, and a relative lack of mods for it reflects that, but it still offers a highly enjoyable experience that I have personally played through multiple times. Whereas the preceding games (and even Doom 2016 that follows) focuses on raw action, challenges based on how many enemies can be played on a map and their locations, Doom 3 goes a different route, it is not the same genre of game. Doom 3 oozes in horror and sci-fi elements that lack in the rest of the series. The quiet moments are broken rather suddenly and often effectively with monster encounters. Due to the change in genre and style, Doom 3 rarely features hordes of monsters, instead focusing on small encounters of up to 5 monsters at a time. The player's health is more rapidly depleted and the monsters are tougher to make up for it. On the latter two difficulty modes, this game is sure to give you all the challenge you could hope for :-) On the BFG Edition: It is a largely faithful representation of the original Doom 3 release. A few areas are very subtly brightened up, the flashlight is no longer a separate 'weapon' (opting more for a Half Life style), and some extra ammo is added around the maps (I never had problems with abundant ammo in the original release anyway, but still, there's even more here). It includes a brand new expansion to whet the appetites of old fans, at least. BFG Edition, sadly, is incompatible with mods for the original Doom 3, and that will be the majority of mods you will find on the internet. The original Doom 3 really needs to be sold on GOG or included as a bonus with this version, in my strong opinion.
