Half-Life is very interesting. It has a lot of action and a heavy focus on the science stuff that is presented throughout the game. It's awesometastic!

The game has a whole crap ton to do and is really fun with friends. You get to kill stuff and constantly get better, faster, stronger. 8/10 Go play ;)

While I have no idea what I'm doing in sandbox mode, the online gamemodes are AMAZING! Insane things constantly happen online! Go buy da gaem now! Plz?!

It's steampunk, it has airships, and it's team-based. This seems to makes for a really great game! The matches are always exciting.

Playing L4D2 is great, and the gamemodes add to the fun. This game is perfect for gathering buddies and re-killing the undead, or each other!

The story is exciting; there's not a lot of post-apocalyptic games like this one. The shear amount of things to do, collect, and discover is just sweet.

The gameplay is fun and not too unfair. The gamemodes provide different experiences, and I love Man vs. Machine. The level of customization is >9000.

The puzzles are better and more interesting than in Portal, and the story is fleshed out 10 fold in comparison. It is most definitely a cake worthy game

The puzzles are great and increase in difficulty each level. You get to slowly learn about Aperture and later make your escape. The cake is a bit iffy..

I love this compelling story-driven adventure. You have to make a lot of choices; many of which are very difficult, and effect the characters forever.