Games you can't play because they are too much of a timesuck

I discovered if I want to be a somewhat productive college student I needed to uninstall 
Viva Piñata because the game for me is a great way to lose a couple of days playing it. 
So games you like but can't play because you know having it installed would take up too much of your time?

RTS/TBS in general and only on PC, but very specifically Civilisation (in my case IV, but III is calling me) and Age of Empires II.  "Just one more turn" - yeah, right.  I had to stop myself playing it on any work night.

ArmA 2 seems to make me lose track of time sometimes.
 
That, and pretty much every flight simulator.

I lost 60 hours to Mass effect 2.... sooooo good

" @oldschool: me too,for the series Also big fan of the Games between two and three Alpha Centauri, Alien Crossfire did you ever get a chance to try them? Premise for both end of the space race you started in Civilization now on an alien planet really cool games for the time "

Civ games are like that.  I've banned myself from games in the past specifically because Civ 3 was taking over for me.  It just occupies my mind even when not playing it and for a single game which can last many many hours that's often just too much time.

" @oldschool: Even though it's a bit slow in terms of how long days are it's just sooo satisfying to me when I get two new pinatas to romance, will have to wait for the summer though as I would like to graduate at some point in the next year.  "

I was always curious about WoW but, with my addictive personality, I probably would have let it ruin my life, so I never touched it.

WoW

" I was always curious about WoW but, with my addictive personality, I probably would have let it ruin my life, so I never touched it. "

I completed Mass Effect 2 in about six days and maybe around forty hours on the clock. It pretty much took over every minute of spare time, and perhaps some not so spare time, for a week. For this reason i'm making myself wait until Easter when i have time off school before Ipick up Dragon Age. WoW is another game which i haven't gone back to since it ate a summer a couple of years ago. Recently though i've started thinking about resubscribing again but my crappy computer, lack of friends playing the game and the need to actually do some work this year have made me steer clear of it. 

I usually try to set aside those sort of games for long weekends or leave etc.

MMOs - all of them basically. I quit WoW because I started a job on night shift and I've never been able to bring myself to really bust into an MMO since.

World of Warcraft.  It just demands way too much of my time and focus. 

Pretty much all RPGs. 
 
Despite being one of my fav. genres I tend to only get to play a small percentage of the stuff thats out there.
 
Curse you responsability!

I've had Dragon: Age Origins and Borderlands since the start of my second semester of university and not only have I not had proper time to progress very far in either but I've also not been able to enjoy them as much as I normally may have been able to. It's a good thing I don't tend to get too easily addicted to RPGs because I know WoW has disrupted the education of so many people on this games programming course.

WoW of course is the biggie, but Sins of a Solar Empire sucked a couple of days right away and it doesn't even have a campaign.  I was just playing against AI opponents.  One match was lasting like 16 hours or something.  Decided that it might not be a good idea to play this often, though it also got boring after a little bit, much like Civ IV tends  to do when I play too much.  I can always go back to it for a new fun time though.

I work 10 hours a day 6 days a week, and have 3 hours of driving per day on top of that. So my only options on workdays are DSi games. But I listen to Pimsleur language learning CD's which take a lot of concentration, so I just end up with a stack of unbeaten games that goes halfway to the ceiling and never play any of them.

Dragon Age: Origins.
I will eventually no doubt but for now I just can't bring myself to do it.