Portal

Portal is short in the way a perfect sentence is short. It introduces one impossible verb, teaches the player its grammar, and then spends the rest of its running time finding sharper and funnier uses for it.

The craft is almost severe. Rooms are readable. Problems are spatial rather than fiddly. The comedy never smothers the design, and the design never needs padding to feel substantial.

It is hard to name another game so widely quoted that still feels this disciplined when played fresh.

Three stars because it remains one of the cleanest examples of concept, mechanics, and tone becoming the same thing.