Portal 2 is a very fun follow game to the original Portal. It gives the game story and explains a lot of things that the player may never have thought of. However, it raises more questions then it answers, hopefully opening the door for a third installment. The co-op is a breath of fresh air, having a completely different style and story than the single player. I have replayed this game several times and still find it exceedingly enjoyable. Overall a very good game that I would greatly enjoy seeing more of.

Terraria is an amazing Sandbox game. Comparable to Minecraft, it infuses the freedom to build and do what you want with RPG style gameplay. Bosses, invasions, and NPC's bring this game to life. Play it solo or with friends, you enter your world with the basics, after completely customizing your side scroller toon. This game is extremely enjoyable and can be played over and over again with new characters. Even after nearly 100 hours of play I find myself still in awe of all the features Terraria has to offer.

Killing Floor is a basic FPS Zombie kill game. Like most other FPS Zombie kill games, it's difficult and boring alone, so I recommend playing with friends. Even then the levels can be frustrating and rage-quit worthy. The zombies are difficult and upon death you lose all your items. You are given a limited amount of time to shop and it has proved exceedingly difficult to host a game, even with a beefy machine. If you are good at Zombie FPS's and enjoy endless waves of brain nomnoming goodness, this is the game for you.