Seriously, this game is outrageously fun and clever at the same time. It will create fireworks in your brain. You'll have a big grin on your face the whole time you're playing it. The level design is exquisite, there is a unique atmosphere and personality to the game and of course it relies on an extremely original idea, which is this portal gun that can connect two places with a pair of portals no matter how far away from each other and enable instantaneous travel.
This was originally a independent student's project (Narbacular Drop, free to download) that was bought by Valve to become part of the Half-Life universe. And one can see while playing the game how Portal is just an opening. The possibilities are endless. The first thing that comes to mind is how well this could work in a FPS like Half-Life. This portal gun may well be the new gravity gun, only even better and a lot more mind-bending (in addition to being space-bending).
Sure, it only lasts two to three hours, but three hours you'll never forget.That's why,I am finishing this game,very slowly.
If you can get portal, I heartily recommend it. It's worth it. If you want a comparative recommendation as to how good the game is.... It's two slices of Ice Cream Cake and Two Slices of Black Forest cake.
Just in case you don't know, Portal is part of the Orange Box.
Here some screenshots of Portal.
Linear Mode
