Half-Life: Opposing Force

Half-Life: Opposing Force (1999)

by Gearbox Software, Sierra Entertainment, Valve
Genres:Platform, Puzzle, Shooter
Themes:Action, Thriller, Warfare, Science fiction
Game modes:Single player, Multiplayer
Story:Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.Show more
user avatarAdded by @Criffer
Vote to bring this game to GOG and help preserve it.
3 210
Trailers and screenshots
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Screenshot
Stories about this game (0)
What’s your memory of Half-Life: Opposing Force?Share your favorite moments and see what others remember about this game.
user avatar@placeholder

Make sure to follow our Guidelines when adding new Stories.

If not sure what to write:
  • What made this game unforgettable?
  • Who did you play this game with?
  • What made it fun or challenging?
  • Why do you want this game on GOG?
No stories yet! Be the first to share your memories with Half-Life: Opposing Force and inspire others.
Those games also need your vote!
Lemmings
LemmingsA unique mindboggling game of multiple skill levels. Take command of the wackiest collection of misdirected rodents ever seen on your screen.
Action
Comedy
Action
Comedy
25 664
14
Dragon Caffi
Dragon CaffiJoin Margo on her quest to discover the joy that food brings to others, and the memories gathered around sharing a treat with loved ones!
New
Action
New
Action
1
Unreal Tournament
Unreal TournamentUnreal Tournament is a first-person arena shooter video game developed by Epic Games and Digital Extremes. It was the second installment in the Unreal series. It is an arena first-person shooter, with head-to-head multiplayer deathmatches being the primary focus of the game. Other game modes include TDM. CTF, Assault, Domination, Last man Standing etc.
Action
Action
1 757
6
Unreal Tournament: Game of the Year Edition
Unreal Tournament: Game of the Year EditionUnreal Tournament is a first-person shooter video game developed by Epic Games and Digital Extremes. The second installment in the Unreal series, it was first published by GT Interactive in 1999 for Microsoft Windows, and later released on the PlayStation 2 by Infogrames, and on the Dreamcast by Secret Level. Players compete in a series of matches of various types, with the general aim of out-killing opponents. The PC version supports multiplayer online or over a local area network. Free expansion packs were released, some of which were bundled with a 2000 re-release: Unreal Tournament: Game of the Year Edition. The game is based on the same technology that powered Unreal, but the design of Unreal Tournament shifted the series' focus to competitive multiplayer action. Development took 18 months, and the game was initially intended to be an expansion for Unreal. Unreal Tournament received critical acclaim, with reviewers praising the graphics, artificial intelligence and gameplay, although the console ports were noted for having limitations. The game won several awards, and remakes have been attempted by fans. The series has continued with the releases of sequels Unreal Tournament 2003 in 2002, Unreal Tournament 2004 in 2004, and Unreal Tournament 3 in 2007.
Action
Science fiction
Action
Science fiction
1 932
8
American McGee's Alice
American McGee's AliceShortly after her second adventure, Through the Looking-Glass, Alice's house is burnt down by an accidental fire, killing her family and leaving her as the only survivor. As time progresses Alice loses touch with reality. She is institutionalized in Rutledge Asylum, where she is observed and treated by Dr. Heironymous Wilson. Alice's only possession in Rutledge is a stuffed rabbit. Ten years after Alice was committed to Rutledge, she finds herself sucked back into a Wonderland that has been twisted by her own broken mind. The White Rabbit summons Alice to aid a radically altered Wonderland, which became a twisted version of itself as it came under the horrible rule of the Queen of Hearts. The Cheshire Cat serves as Alice's companion throughout the game, frequently appearing to guide her with cryptic comments.
Top
Action
Horror
Top
Action
Horror
53 845
80
No One Lives Forever 2: A Spy in H.A.R.M.'s Way
No One Lives Forever 2: A Spy in H.A.R.M.'s WayA year after the first No One Lives Forever, tensions are rising between United States and Soviet Union over the tiny, but strategic Isle of Khios. Jones, now the sole Commander of U.N.I.T.Y. (after Smithy was discovered to be a H.A.R.M. spy in the first No One Lives Forever), is taking a vacation and leaves Temporary Director Lawrie in charge. The sequel to the award-winning No One Lives Forever returns you to a world of espionage, intrigue, and dry humor. In her second adventure, British UNITY operative Cate Archer must investigate a super-secret Soviet project that, if successful, could bring about the third world war.
Top
Action
Fantasy
Historical
Comedy
Stealth
Top
Action
Fantasy
Historical
Comedy
Stealth
57 177
54
Alice: Madness Returns
Alice: Madness ReturnsReturn to Wonderland and experience an all new nightmare as Alice fights to regain her sanity as she fights for the truth behind her past. Can Alice save Wonderland - and herself - from the madness that consumes them both?
Action
Horror
Action
Horror
22 772
18
Grand Theft Auto: San Andreas
Grand Theft Auto: San AndreasReturning after his mother's murder to the semi-fictional city of Los Santos (based on Los Angeles), Carl Johnson, a former gang banger, must take back the streets for his family and friends by gaining respect and once again gaining control over the streets. However, a story filled with crime, lies and corruption will lead him to trudge the entire state of San Andreas (based on California and Nevada) to rebuild his life.
Open world
Action
Stealth
Open world
Action
Stealth
25 293
36
Prey
PreyPrey tells the story of Tommy, a Cherokee garage mechanic stuck on a reservation going nowhere. Abducted along with his people to a menacing mothership orbiting Earth, he sets out to save himself and his girlfriend and eventually his planet.
Our Pick
Top
Action
Science fiction
Our Pick
Top
Action
Science fiction
49 465
112
Castle of Dr. Brain
Castle of Dr. BrainCastle of Dr. Brain is the first in a two-part series of educational puzzle-games from Sierra. This brain-blasting game is set, how surprisingly, in Dr. Brain's castle, where the player will have to beat Dr. Brain's traps and puzzles in order to fulfill the assignment given.
Comedy
Educational
Comedy
Educational
1 301
1