One of the most classic Valve games besides Half-Life that I can think of. For anyone who's a fan of puzzle, physics and co-op games, this is a must-have.
Premise is simple: shoot portals that take physics objects from one portal to the other to solve test chambers by hitting buttons, building bridges, and more. Premise is simple enough, but some of the levels become very difficult, which I'm sure some players will definitely appreciate. Too difficult? Try a community-built test chamber, with different builds from laser art to full-blown levels that could've been actually implemented into the story itself. There's also a cooperative mode, which is a massive step up from the first game. Same premise, but now some puzzles require the use of two players working in tandem. You can even build your own test chambers to upload, albeit these aren't as well designed as the Hammer-built ones, but still fun to make! In all, this gets a whopping 10/10 from me!

One of the most classic Valve games besides Half-Life that I can think of. For anyone who's a fan of puzzle, physics and co-op games, this is a must-have. Premise is simple: shoot portals that take physics objects from one portal to the other to solve test chambers by hitting buttons, building bridges, and more. Premise is simple enough, but some of the levels become very difficult, which I'm sure some players will definitely appreciate. Too difficult? Try a community-built test chamber, with different builds from laser art to full-blown levels that could've been actually implemented into the story itself. There's also a cooperative mode, which is a massive step up from the first game. Same premise, but now some puzzles require the use of two players working in tandem. You can even build your own test chambers to upload, albeit these aren't as well designed as the Hammer-built ones, but still fun to make! In all, this gets a whopping 10/10 from me!