Roleplay games
If you enjoy fantasy books, or would like to have special powers, roleplaying games are the ones you will like. You can try single player or online multiplayer games and explore various magic worlds.
World of Warcraft
Tibia
WolfQuest
Dofus
4Story
MapleStory
Lineage II
CABAL Online
Silkroad
Minecraft
Slendytubbies II
Grand Chase
BossRan
Oblivion
Ran Online
Revelation Online
Helmet Heroes
Ragnarok Online
AION
Arena of Heroes
Transformers Universe
Runes of Magic
Mass Effect 2
Shaiya
Chrono Tales
Steel Warrior
RF Online
Runescape
Heroes of Newerth
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.