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The second game of the Gothic series continues the third-person RPG goodness. Gothic II was developed by Piranha Bytes. The Night of the Raven expansion is integrated into the original Gothic II game. This expansion adds additional game content and features. Players choose different character specializations which will determine how their character develops. Training points are earned through gaining experience which can be spent to increase character stats or learn new abilities. This game is focused towards hardcore, experienced gamers.

Portal is a Source-engine puzzle game. Players use a first-person perspective to explore a three-dimensional environment that is broken up into a series of levels. The only device available to the player is a portal-placement gun that is used to solve the puzzles. Players can place up to two portals that can then transport the player (or anything else) through them.Portal is a puzzle-lite game with an emphasis on faster replays and conditional achievements.

Quake is an FPS from iD Software. You play as a grunt who must travel to a variety of worlds through interdimensional portals and destroy a Lovecraftian horror and hundreds of minions before they can locate and overrun earth. Dark Places is a source port that has various enhancements over the official versions.
It may not be as impressive graphically as say, Tenebrae, but this port is the widescreen king of source ports, so it gets the honors here. Dark Places can be downloaded here (original Quake data is required and not included) http://www.icculus.org/twilight/darkplaces/

Players follow the exploits of a blue hedgehog and his vast array of humanoid-animal friends and rivals. There are multiple game modes including story, normal race, tag, and survival. Characters race on several variants of hoverboards that are powered by "air". When a player's character runs out of "air" they must hoof it on foot, claw, or whatever. There are several pit stations scattered throughout courses that allow players to refill their "air" gauge.

The world changed when Aziraal, the god of war, was slain in the huge battle long ago. The hordes of Orcs lost their divine leader and were forced to withdraw to the southern wastelands. Now, thousands of years later, the location of Aziraal's tomb is still unknown, well hidden by other gods who did not dare to entrust the secret to mere mortals. However, now, a fragile peace between the civilized races and the hordes is at stake.

Starting out as a recently sired vamp-baby, you get to make your way around the LA area looking for some meaning to your now pointless existence. While you are dragging your undead behind throughout the city you may also get lucky and avert the vampire Apocalypse. Or not. It's your call bloodsucker. Lead your character in first or third-person perspectives as you stalk the streets, feed on some hookers, and chat up the normals. You have several vampire clans to choose from which will determine your characters abilities and tendencies.

You play as an martial arts student who is trying to rescue his/her abducted Master from a group of assassins. While unveiling the circle of treachery, you can choose to follow the Way of the "Open Palm" or the "Closed Fist" (Good/Evil - much like the KotOR series) and influence the story and people in this way.

Take control of alien wizards as they seek to control manaliths and banish their opponents from the realms. Harvest the souls of your enemies' creatures and create more powerful, deadly beings to ravage the lands. Sacrifice your own followers to destroy your opponent's altar and claim victory. Master the spells given to you by the five gods of this new world: the righteous god of Life, Persephone, the humble god of Earth, James, the all-knowing god of Air, Stratos, the industrious god of Fire, Pyro, and the sinister god of Death, Charnel.