Definetly yes, for a long time i had a ridiculous obsession with Morrowind (like 4 hours a day for months), swear i musta played over 300 hours of that game. Sadly this spawns from my addictive personality thats and why i've never smoked or dabled in drugs simply because i think id go to extremes, and comically enough is also why ive never went near an MMORPG since im sure id go on some a complete bender lol.