it's not a videogame (i mean, you can play it on the computer but it's just not the same), but lately i've been hooked on a card game called King. it's mostly popular around portugal, brasil, france and i think spain and italy too.
it's awesome :dio:
in short:
there are two phases, the negative phase where you try to make as few points as possible, and the positive, where you have to try to make up for the first phase's negative points.
phase 1:
a - don't take tricks
b - don't take hearts
c - don't take Queens
d - don't take Jacks or Kings
e - don't take the King of Hearts
f - don't take the last 2 tricks
phase 2:
i can't be arsed to explain.