Aliens versus Predator

Aliens versus Predator is a science fiction first-person shooter computer game developed by Rebellion Developments and published by Fox Interactive for Microsoft Windiws and Mac OS computers in 1999. It is based on the Alien and Predator media franchises and the crossover Alien vs. Predator franchise. It was unofficially ported to GNU/Linux in 2001 and Xbox in 2009, following Rebellion's public release of the game's source code. A sequel, Aliens versus Predator 2, was developed by Monolith Productions and released by Sierra in 2001.

Gameplay
Like the 1994 Alien vs Predator game for the Jaguar, Aliens versus Predator offers three separate campaigns, each playable as a separate species: Alien, Predator, or human Colonial Marine. Each player character has different objectives, abilities, and weapons. The single-player campaign presents the player with a conventional series of levels to progress through that are designed around the abilities of each character.

As the Colonial Marine, the player uses a number of weapons to combat Aliens and Predators. The marine wears armour for protection and uses an image intensifier and flares to improve visibility in dark areas.

When playing as the Predator the player uses a variety of weapons from the Predator films such as wrist blades, a throwing disc, and shoulder-mounted energy weapons. The Predator is the most durable of the three player characters and can survive falls from greater heights than the human. The player can use a cloaking device to become invisible and several different modes of vision to detect enemies, including an infrared vision mode and a mode sensitive to electrical systems.

As an Alien the player can explore most of the game's environments freely, even climbing across walls and ceilings. The Alien has no weapons, however, using its claws, tail, and jaws to attack enemies. The screen is distorted into a fisheye lens effect to reflect the Alien's field of view. The player can also use a form of echolocation in dark areas and can detect pheromones to discern human or Predator enemies. The Alien can drop from any height without injury and is the fastest of the three player characters.

Several bonus levels allow each player character access to portions of the missions of the other characters. To allow the marine and Predator characters to traverse through the areas of the Alien missions, the player is supplied with a jet pack for the marine and a grappling hook for the Predator.

A number of other unlockable game modes are hidden throughout the game. These include "super gore mode" in which much more blood is emitted from wounds, "pigsticker mode" in which the Predator's speargun has a much higher rate of fire, "John Woo mode" in which the in-game action slows down when there is more on-screen activity, and "sniper munch mode" in which the Alien can perform its jaw attack from any distance.

Story
The storylines of the three player characters are independent of one another. As an Alien the player must defend the Alien hive, located in an Alien temple from human marines, then stow away on an evacuating spacecraft and reach the Marines' ship, the Ferarco. When the Ferarco ' s self-destruct system is activated, the player must reach the escape shuttle, which takes them to Gateway Station. Here the player explores the station and battles more marines, reaching a ship departing for Earth. Before boarding the ship the player battles two Predators, after which the Alien enters the Earth-bound shuttle.

When playing as the Colonial Marine, the player begins at a research station on LV-426 built to study the derelict spacecraft where the Nostromo crew first encountered the Alien eggs in the film Alien (1979). Aliens attack and the player must fight their way through the research facility, the derelict ship, and an adjoining colony. Next, the player explores the atmosphere processing station and shuts down its cooling valves in order to cause an explosion which will wipe out the Aliens. The player character escapes in a dropship and travels to Odobenus Station in orbit above the planetoid, where they battle more Aliens, Predators, facehuggers, and cybernetically-enhanced Aliens until reaching the spaceship Tyrargo. Aboard the ship the player battles more enemies including an Alien/Predator hybrid and "praetorian" Aliens. The player then battles an Alien queen, defeating it by expelling it through the airlock.

The Predator character's storyline visits three different planets, beginning with the player hunting marines in order to recover a captured Predator ship and its occupant from a human military base. Aliens are accidentally released in the base and the player discovers that the humans have created an Alien/Predator hybrid by implanting the captured Predator with an Alien embryo. The player defeats the hybrid, triggers the self-destruct mechanism in the facility, and escapes in the Predator ship. The player next visits Fiorina "Fury" 161, the prison planet that is the setting of Alien 3 (1992), where more Aliens and marines are battled. Finally, the player visits a marine-controlled Alien habitat, battling cybernetically-enhanced Aliens, "praetorian" Aliens, and finally the Alien queen.

Gold Edition
A "Gold Edition" of Aliens versus Predator was released in 2000. This edition adds two new weapons, a savegame feature, some more stages for multi-player, though the number of stages in Single Player campaigns remains the same as the original game. It also includes sixteen multiplayer maps, the "Millennium Add-on Pack", and a strategy guide.

Classic 2000
A re-release of Aliens versus Predator was released on January 15, 2010. Retitled as Aliens versus Predator Classic 2000, this version of the game has been updated to work on modern computers, as well as support for the Xbox 360 controllers. Moreover, this release includes all the levels from the original AvP Gold Edition and the extra content of the Millennium Add-on Pack. Supporting only singleplayer initially, multiplayer functionality has since been added. This release can be purchased through Valve's Steam digital distribution service.

A patch released on January 19, 2010 via Steam added proper widescreen support, optional unlimited saves, a locked frame rate, mouse improvements, and other updates to the game.

Reception
The game was very well received by critics. The game received an "impressive" 8.5 out of 10 on IGN, being praised for allowing you to play three different characters, each with a unique game-play element, and for being "fun and terrifying at the same time". GamePro reviewed the game 4 out of 5, citing the lack of a save feature as a major flaw, but praising the "splendid graphics, perfect sound effects, multiple vision modes, and ambiance" and citing it as "the most frightening game since Half-Life". The Adrenaline Vault gave the game 4 out of 5, citing the lack of depth in the story as a major flaw but praising the immersive atmosphere describing a moment of being attacked by a facehugger in the game as being "in these moments...the greatest game I had ever played". Inside Mac Games website gave the game another 8 star rating.