It is Warcraft 3.
I know it's extremely old, but this game is not going to die any time soon with tons people still playing tons of different mods online against each other. Some classic games have really long life time. I still remember how it was in the commerical when I was playing StarCraft (1) as a new game. I never bothered to look into Warcraft 3 until sometimes 3~4 years ago...
Played Skyrim again today. I finally beat Alduin, he was giving me a lot of trouble at first but today I crafted a necklace, boots and ring with fire resistance and after that defeating him was a cinch! Now I just have to kill him in Sovngarde.