The Enrichment Center recommends that the player should play Portal at least once with the developer commentary on.

While it is much shorter than most other Valve titles and lacks most of Portal 2's content, the commentary clearly shows a great effort went into directing, level designing and optimising the source engine for portals.

Experiments over the playtesters was carefully examined and utilised to create the optimum testing experience for all test subjects.

Overall Portal consists of nothing but good design choices and a very memorable testing experience.

The Enrichment Center thanks you for reading this review. Liking this review will result in immediate reward of Cake.

The Enrichment Center recommends that the player should play Portal at least once with the developer commentary on. While it is much shorter than most other Valve titles and lacks most of Portal 2's content, the commentary clearly shows a great effort went into directing, level designing and optimising the source engine for portals. Experiments over the playtesters was carefully examined and utilised to create the optimum testing experience for all test subjects. Overall Portal consists of nothing but good design choices and a very memorable testing experience. The Enrichment Center thanks you for reading this review. Liking this review will result in immediate reward of Cake.