Last game I played?
Torchlight. It's a Diablo clone by the people who made Diablo (not Blizzard, the employees who left and formed their own company). Probably the best implementation of that concept lately, it's just a bit too liberal with "rare" items (you get one of these for every two enchanted items and magic to non-magic items are roughly 1:1...). Also make sure you pick one of the higher difficulties, normal is ridiculously easy.
Other than that, been a while so I can list a few more.
Borderlands: Yep, pretty boring. It's playable alright but lacks much interesting stuff. As a Diablo clone I'd rate it below Hellgate London which had much more extensive equipment options, let you tune the weapons you have instead of grabbing and ditching them and gave you tons of active and passive abilities instead of the pathetic excuse Borderlands gives you.
BrĂ¼tal Legend: It's a nice game but fell short of what could have been. The characterization and humor fades away as the game progresses, the demo really shows the high point of it, even the inventiveness of the units goes downhill (headbangers were probably the best idea of the bunch, stuff like the fire barons just seem more like generic war stuff instead of music-stuff-turned-weapon). Also it needs more Metal, in the overworld you only got music as long as you stayed near the car and if you died or left the car behind or got a briefing or whatnot the song status gets reset so it'll pick a new one the next time you enter the car, considering many Metal songs are 5+ minutes long that's not a way to enjoy them.
Eufloria: An RTS that lacks strategy, while there's some fun in the early stages when you have to make sure you build up properly the AI almost never punishes you for mistakes and once you get enough seedlings together it's just a boring game of mopping up. The authors hide behind the "ambient gaming" label but IMO they just made a flawed design.
Sacraboar Demo: It looks like a shoddy Arena Wars clone as far as I can tell, not easy though since all I got to see of it was overly condescending tutorials (that force you to "practice" stuff after any sane person should have gotten it, e.g. it doesn't just tell you to click on the minimap to move the view, it then tasks you with clicking on this, clicking on that, etc like the developers seriously expected the player to be so fucking retarded that he can't tell how that works after doing it 1-2 times). Even worse, I did the tutorials in the tutorial mode, the campaign mode duplicates them but unlike the tutorial mode doesn't let you skip any of them. At that point I deleted the demo and filed it under "total garbage".
Little Red Riding Hood's Zombie BBQ: A nice DSiWare title (
) though at times I think it gets too fillery and it seems too easy so far. The tutorial was also pretty condescending, acting like humans are incapable of understanding that moving to the left is not the only direction the movement can take you without being explicitly told about it.
Wii Sports Resort: Worse for my arm than Wii Sports baseball. Seems fun so far but I can't play it much because of the pain it causes after prolonged use. I don't think human arms are suitable for constant rapid harsh movements.
Dynasty Warriors Gundam: It's really stupid... Most of the time you bash away at the health of fields by hitting mostly harmless enemies (they barely ever attack) for minutes at a time, then you get to fight a hero who can rape you in no time if you are unlucky and if you die at any point in the mission (and the really hard heroes tend to appear towards the end of 20-30 minute missions) you have to do the whole thing over again, especially the mind-numbing mob bashing.
That may or may not be a complete list, I honestly don't remember.