[1011_1101]

Portal + Portal 2

115 comments without any mention, is this too obvious?

[harry8]

I loved these games. I can't remember learning from them. What have I forgotten?

[1011_1101]

Basic physic concepts, like gravity, friction, velocity or optics. If you were already familar with these concepts then training/experimenting would be a better description than learning. Afaik there were even schools using this game in classes.