writes "Mods have been an important part of gaming for well over 15 years. Not only have they provided plenty of additional free gaming to players, but they've acted as a launch pad for independent and amateur programmers to show off their skills to potential employers. This Gameplayer article highlights the programmers who are doing it best, and what mods have made biggest and most enjoyable impact on gaming. The article not only provides details for each game, but also links to the downloads, and is a great resource for those interesting in getting up-to-date with this exciting scene."
Obviously, this list will seem incomplete to anyone whose favorite mod was omitted. What mods contributed most to your enjoyment?