Deus Ex is one of the best PC games in history, but even it isn't without its faults and shortcomings. Shifter addresses these and then some. Unused game content, buggy scripted events, several completely useless items, and certain design choices that can only be described as "annoying", all fixed (or at least "improved") by this little mod. I started Shifter in 2002 to fix just one of the latter -- the fact that weapons equipped with a laser sight won't turn it on automatically -- and the project has expanded exponentially since then. A few new weapons, some additional uses for existing items, new augmentations, and several fixes for existing Deus Ex bugs all exist in Shifter, along with a new multiplayer component. The mod is so popular it's been featured in Game Informer's July 2007 edition of Mod World; how many Deus Ex mods can say that? (only 3, to be specific) Shifter: "Removing the suck from Deus Ex" since 2002.
Any of you who have ever used a real flare in water (or near water) know that water doesn't do anything to stop flares from burning. Deus Ex, unfortunately, was of a decidedly different opinion, primarily due to a minor technical limitation that wasn't really worth working around. Fortunately for you, I have endless amounts of free time to waste. Once underwater flares now produce air bubbles, as shown by this screenshot. Don't you just feel better now?