10 Amazing Video Game Moments Created By Fans

1. The Creation Of Team Fortress & Counter-Strike

And finally, we have a double-whammy with two of the most influential first-person shooters of all time, both of which were originally modded from existing classic games.

First up, we have Team Fortress, which started out life as a 1996 Quake mod, before Valve hired the designers to port it to Half Life's GoldSrc engine in 1999, whereby it became a veritable online multiplayer phenom.

In 2007, a long-gestating sequel was finally released to massive critical and fan acclaim, and has continued to be iterated upon ever since in free-to-play form.

On the other hand, there's Counter-Strike, which had a remarkably similar origin story, beginning as a Half-Life mod which was eventually acquired by Valve in 2000, with developers Minh "Gooseman" Le and Jess "Cliffe" Cliffe also being hired by the company.

In its various iterations, Counter-Strike has been a popular FPS mainstay ever since, and late last year transitioned into a free-to-play model. But neither game would exist without the tireless work of devoted fans first and foremost.