Because that’s what I enjoy.
Oh, you want more?
Well, besides the fact that I tend to enjoy complex and well-defined worlds, conspiracies, plots, horror and emotional attachment, there’s the fact that these are hard to engender in a game. ‘Delve into the Dungeon of Prolapse the Underwhelming to fetch The Headpiece of Fring’ is pretty simple, ‘Take the Buttplug of Doom to Mount Snoozemoor’ is longer, but pretty simple. Overthrowing a government, rooting out a secret society, making your neighbourhood a better place or falling in love against the odds and raising a family, running a mercenary company during a conflict between many parties – these are more difficult.