Portal is a puzzle game classic. A bit on the short side, but each and every one of the puzzles is clever and makes you feel smart.

The humor is cheeky and the story is enticing. The challenge maps are fun, though the game does lack content compared to its sequel. Regardless, Portal is an experience with all the fat trimmed so you get a focused, fun playthrough.

100%: Some of the gold medals prove to be a bit tricky, but with enough brainpower can be overcome.