Hack

Morrowind is the third installment of the Elder Scrolls series by Bethesda. Players select a character from an array of races and seek their destiny on the harsh landscape of the island Morrowind. This is an expansive RPG with a large world for characters to explore at their whim. Character development is based on developing skills and their corresponding attributes. This is the first Elder Scrolls game to utilize the plugin system which allows community created content to be added to the game.

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.

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 control D-Tritus as he makes his way around the robot city of Chimera. The two main game modes are on foot and ship. D-Tritus gains the ability to "overwrite" other characters in the game and take their place. This allows D-Tritus to masquerade as other characters and use their unique abilities. These abilities include flight, weaponry, theft, and burping. Players can customize their ships with bigger engines or more firepower depending on their playing styles.

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.

Grandia II is a role-playing video game developed by Game Arts originally for the Dreamcast console as part of their Grandia series. It was developed by many of the same staff members who worked on the original Grandia, including music composer Noriyuki Iwadare but was designed around the idea of creating a more "mature" product than the previous title, as well as the first in the series to feature fully three-dimensional graphics.

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.

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.

Wolfenstein 3D is a seminal first-person shooter game first released in 1992, pitting the player, a captured American spy, against a horde of WWII-era Nazis ensconced within Castle Wolfenstein. It is widely regarded by critics and game journalists as having helped popularize the genre on the PC, and having established the basic run-and-gun archetype for subsequent FPS games.