I adore Zoo Tycoon games. With Ultimate Collection - Zoo Tycoon 2 - you get the base game plus all the expansions, in one neat package.

The second downloadable content pack for "Total War: SHOGUN 2", Fall of the Samurai deals, naturally, with the end of the samurai era and the beginnings of modern Japan.

A free-to-play resurrection of the "Starsiege: Tribes" series, "Tribes: Ascend" offers gameplay not found in basically any other modern shooter.

A "roguelike" with retro 8-bit graphics, "Hack, Slash, Loot" certainly lives up to its name. "Hack, Slash, Loot" is a game about dungeon delving, similar to games like Rogue, ADOM, and more recently Dungeons of Dredmor.

Based off of the Fallout 3 engine, "Fallout: New Vegas" takes place in a new part of the Fallout world and improves on both mechanical and narrative aspects of the game.

A team-based game focused on high crime, "PAYDAY: The Heist" delivers exactly what it says on the tin with a reasonable amount of competence.

A fast-paced shooter that eschews the cover-based mechanics of games like Call of Duty, "Serious Sam 3" is an appeal to the glory days of the high-reflex, high-intensity FPS.

An action-RPG based on a Polish fantasy series, "The Witcher 2" expands the gameplay and setting of the first game, yet comes up short in some regards.

A highly detailed medieval strategy game, "Crusader Kings 2" allows players to take the role of a noble in the medieval world and climb the ladder of success by any means necessary.

Combining the gameplay of both old-school and new-school Sonic the Hedgehog games, "Sonic Generations" is designed to appeal to both retro and modern gamers.