Half-Life Crossovers
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Half Life: Entanglement by ThePilotArchangel reviews
Ayita Shephard, Lambda Resistance; Cato'Zorah nar Rayya, hired Quarian of the Council Funded Relay 314 Expedition. Both dissatisfied with their lot in this universe; one under the heel of a Inter-Universal Empire, and the other under the boot of an Apathetic Galactic Council. Together they will change the Galaxy. (Image not Owned, Co-Written with IantheMechanic, First Contact AU)
Crossover - Half-Life & Mass Effect - Rated: T - English - Sci-Fi/Family - Chapters: 31 - Words: 263,211 - Reviews: 24 - Favs: 61 - Follows: 94 - Updated: 19h - Published: 6/30/2020 - [Shepard, OC] Garrus V., Tali'Zorah
Strange New World by LittleInkling64 reviews
Sequel to Of Ratts and Men. City 17 may have been destroyed, but the Combine still reign supreme over Earth. Now, the Half-Life gang must find the Borealis so they can use portal technology aboard to find Alyx and finally beat the Combine. Lucky for them, three of the best candidates for the task have just rejoined the surface. Not so luckily, the Combine has found them first.
Crossover - Half-Life & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 14,851 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 5/18 - Published: 2/26 - Eli V., Gordon F., Caroline, Chell
Zootopia 17 by lopezz reviews
Un fallo imprevisto en el teletransportador de White Forest, envía a Gordon Freeman al universo de Zootopia donde deberá arreglárselas para intentar escapar de la ciudad, sin embargo no lo tendrá nada fácil.
Crossover - Half-Life & Zootopia - Rated: T - Spanish - Adventure - Chapters: 46 - Words: 152,541 - Reviews: 15 - Favs: 6 - Follows: 10 - Updated: 5/16 - Published: 2/26/2020
Second Life Choices by PortalsandArt reviews
Something in life guides everyone. Sometimes it's people, sometimes it's the choices that are made. Chell is on the surface and finds the world is a much different place than the depths of Aperture. Gordon and Alyx are trying to fulfill Eli's dying last wish but that's easier said than done. While at White Forest Barney Calhoun just tries to keep everything from falling apart.
Crossover - Half-Life & Portal - Rated: T - English - Adventure/Sci-Fi - Chapters: 42 - Words: 135,373 - Reviews: 25 - Favs: 24 - Follows: 34 - Updated: 5/7 - Published: 7/9/2020 - Alyx V., Barney C., Gordon F., Chell
Freeman's Blessings by Charles From IRS reviews
Free from G-Man's grasp and his name forgotten in time, Gordon sets out in The Borealis expecting death. Instead, he is sent to purgatory and made an offer, save another world and get a reward for it, basically. He can do it, after all, he is The Freeman. WARNING, Dumpster fire of a fanfiction and T for blood, violence and swearing.
Crossover - KonoSuba: God's Blessing on This Wonderful World & Half-Life - Rated: T - English - Adventure/Fantasy - Chapters: 3 - Words: 1,763 - Reviews: 9 - Favs: 11 - Follows: 24 - Updated: 5/2 - Published: 9/22/2019 - Aqua, Kazuma S., Megumin, Gordon F.
Freeman's odyssey by megacoldfusion reviews
After the events of Half-life episode 2, Gordon is left to wonder what to do next and Doctor Kliner has the answer for him. It will take him to strange new dimensions in meeting interesting people to warn of the Combine threat, the real question remains is he already too late?
Crossover - X-overs & Half-Life - Rated: M - English - Adventure/Sci-Fi - Chapters: 197 - Words: 313,274 - Reviews: 30 - Favs: 54 - Follows: 49 - Updated: 4/23 - Published: 5/5/2013 - Gordon F.
Twenty Years Late by A Very Thirsty Megalomaniac reviews
It's hard for the Ethereals to invade when someone else got there first.
Crossover - X-Com & Half-Life - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 132,147 - Reviews: 62 - Favs: 130 - Follows: 141 - Updated: 4/16 - Published: 5/14/2018 - Bradford, A. Shephard, Barney C., The Combine
Half Life In Another World by AntmanGoesUpThanosThanus reviews
(half-life x re:zero crossover) My take on Re:Zero, but Subaru along with Gordon Freeman are summoned to the parallel world, each through different means. Freeman and Subaru form an alliance to survive in this new world, adventure awaits this pair!
Crossover - Re:Zero & Half-Life - Rated: M - English - Adventure/Fantasy - Chapters: 2 - Words: 5,376 - Reviews: 15 - Favs: 26 - Follows: 39 - Updated: 3/24 - Published: 6/9/2020 - Subaru N., Emilia, Pack, Felt
Salvation: Lair of the Shadow Broker by Jesse De La Rosa reviews
Salvation: Episode II - The Lair of the Shadow Broker - A slight re-imagining of the action packed Mass Effect 2 DLC. After defeating the Reaper threat and surviving the hijacking of the Carmenta Illustria, a dire message from one of Shepard's oldest and dearest friends plunges the team into a treacherous search for the mysterious Shadow Broker. But there are other forces at work..
Crossover - Half-Life & Mass Effect - Rated: T - English - Chapters: 8 - Words: 52,020 - Reviews: 36 - Favs: 27 - Follows: 30 - Updated: 3/16 - Published: 3/8/2017
A Business Deal for a Friend by Prof. Pancakes reviews
Deals are made for the one known as Gordon Freeman, yet the one who accepts such deals is none other than the mysterious man himself. When the time comes to accept a job from a dear "Business Partner", there is none other than the one Freeman to do it.
Crossover - Half-Life & RWBY - Rated: T - English - Humor/Fantasy - Chapters: 18 - Words: 103,978 - Reviews: 93 - Favs: 133 - Follows: 159 - Updated: 3/13 - Published: 11/19/2017 - G-Man, Gordon F., Team RWBY, Team JNPR
PortalHalf-Life: See You Soon by iammemyself reviews
The human race is a lost cause as far as GLaDOS is concerned, but there just might be one person worth her time.
Crossover - Half-Life & Portal - Rated: K+ - English - Romance/Friendship - Chapters: 3 - Words: 16,011 - Reviews: 4 - Favs: 3 - Follows: 3 - Published: 1/23 - [Alyx V., GLaDOS] - Complete
To Right The Wrongs by DerpymanMt reviews
(Set at the end of Half-Life 2) Gordon wasn't meant to be caught in the portal's blast. G-Man Hadn't planned for when he failed to catch him. Now Gordon is in a world not plagued by the combine, but by loneliness and pain. Will He set the Pilots and the rest of the world on a better path, lead by the Freeman?
Crossover - Evangelion & Half-Life - Rated: T - English - Family/Romance - Chapters: 9 - Words: 19,250 - Reviews: 2 - Favs: 10 - Follows: 15 - Updated: 12/28/2020 - Published: 11/22/2020 - [Ritsuko A., Gordon F.]
Girls, Tanks, and Resonance Cascades by AAHW reviews
The Combine are the lords of Earth. It has been nearly twenty years after their victory in the Seven Hour's War and those that survive live to suffer under their oppression. In a world utterly transformed for the worse, Miho Nishizumi along with her big sister just do what they can to get by. Yet for the younger Nishizumi, she will not tolerate the status quo.
Crossover - Half-Life & Girls und Panzer/ガールズ&パンツァー - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 18,069 - Reviews: 7 - Favs: 12 - Follows: 14 - Updated: 12/12/2020 - Published: 5/13/2020 - Erika I., Maho N., Miho N., Yukari A.
Libera Terra by Johnnieboy11 reviews
When Earth fell in the grip of the Universal Union, mankind had lost hope. Few dared oppose the alien army that won the 7 Hour War and since their crushing victory, Our Benefactors have lived relatively unopposed... Until now.
Crossover - Half-Life & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 4 - Words: 14,043 - Reviews: 21 - Favs: 52 - Follows: 88 - Updated: 12/7/2020 - Published: 4/8/2020
Silent Hill Any Percent Trauma Speedrun by ISpeltEclipseWrong
(HLVRAI) Benry never shows up to Chuck E. Cheese. Tommy gets a text from him. Tommy goes missing. Coomer goes missing. Bubby goes missing. Gordon gets a text from the Science Team. (rated M for violence/gore/horror. eventually Frenry)
Crossover - Half-Life & Silent Hill - Rated: M - English - Adventure/Horror - Chapters: 4 - Words: 10,887 - Favs: 2 - Follows: 2 - Published: 11/5/2020 - Gordon F.
The Combine and the IS by Stoptakingusernames reviews
The Combine have lost Earth, but don't take it seriously as they're BIG. They set off to find a new universe, Lukas Becker, a former Civil Protection officer finds another Earth, and sets off to attempt to make contact with the humans inhabiting this Earth. Then a lot of other events start to occur.
Crossover - Half-Life & Infinite Stratos/IS<インフィニット・ストラトス> - Rated: T - English - Sci-Fi/Friendship - Chapters: 6 - Words: 9,873 - Reviews: 2 - Favs: 2 - Follows: 2 - Updated: 10/15/2020 - Published: 10/6/2020 - The Combine, Ichika O.
Half-Life: Dark Flow by AnotherTakenUsername reviews
The Black Mesa Research Facility has always been on the cutting edge of scientific discovery. Unfortunately for them, one of their experiments goes too far, plunging the facility into an unprecedented disaster.
Crossover - Half-Life & RWBY - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 26,018 - Reviews: 19 - Favs: 31 - Follows: 41 - Updated: 8/10/2020 - Published: 7/12/2020 - Barney C., G-Man, Gordon F., OC
Deconstruction by Cryophase reviews
A team of Combine soldiers find themselves in Aperture Labs
Crossover - Half-Life & Portal - Rated: M - English - Sci-Fi/Drama - Chapters: 7 - Words: 9,342 - Reviews: 4 - Favs: 10 - Follows: 16 - Updated: 8/7/2020 - Published: 7/18/2020
HLVR but the AI were Left 4 Dead by Livvylondinium reviews
a series of drabbles for an HLVRAI au, where they are in the world of Left 4 Dead. Will be compiled into a proper multi-chap eventually. (I'm sorry that I cannot find the hlvrai fandom, ill just have to post it here for now)
Crossover - Half-Life & Left 4 Dead - Rated: T - English - Adventure/Horror - Chapters: 7 - Words: 2,614 - Reviews: 1 - Favs: 2 - Follows: 1 - Published: 8/3/2020
Samantha and Ronin Faces the Grimm Forces of Remnant by RemarkableTreat reviews
Samantha Burrs, a rather unorganized prison shotgunner sergeant, and Ronin Shiyoshi, a loyalist prison specialist, are involved in an accident that causes them to violently teleport to another world while the forces of the Universal Union are trying to get them back.
Crossover - Half-Life & RWBY - Rated: M - English - Adventure/Tragedy - Chapters: 3 - Words: 17,052 - Reviews: 9 - Favs: 9 - Follows: 12 - Updated: 8/2/2020 - Published: 7/9/2019 - OC, The Combine, Team RWBY, Team JNPR
Entangled Worlds: A Legend of Zelda and Half-Life Crossover by gabeluna27 reviews
One particularly calm night over the land of Hyrule during a meteor shower, a portal tunneling in from another universe forms up in the skies. When the young hero returns to visit his childhood friend, Saria, she herself gets captured from an entirely new threat originating from the portal which Link must follow them through, into a world they don't understand...
Crossover - Legend of Zelda & Half-Life - Rated: T - English - Sci-Fi/Drama - Chapters: 4 - Words: 59,710 - Reviews: 13 - Favs: 12 - Follows: 15 - Updated: 7/27/2020 - Published: 8/4/2018 - Link, Zelda, Saria, The Combine
BSL Incident by QwertzyMacwertz reviews
A semi-crossover Male Reader!HEVSuitWearer X Samus Story. You are a BSL Station researcher assigned to analyze the X-Parasites in the Quarantine room. Sounds like a simple job, What could possibly go wrong? (May contain an annoying Male Reader Character) Originally posted on Deviantart. OneShot
Crossover - Metroid & Half-Life - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 1,707 - Reviews: 1 - Follows: 1 - Published: 7/17/2020 - Samus A., Adam, Ridley - Complete
Operation: Remnant Safekeeping by MimicLegend reviews
With the plights of Black Mesa behind him, Corporal Adrian Shephard finds himself thrust into the world of Remnant by request of the elusive G-Man. Here, he must make new friends and learn to adapt to this fantasy-like world as Remnant will soon learn that the White Fang and the Grimm will be the least of its worries.
Crossover - Half-Life & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 74,908 - Reviews: 33 - Favs: 110 - Follows: 138 - Updated: 6/7/2020 - Published: 2/2/2019 - A. Shephard, G-Man, Team RWBY, Team JNPR
Thus, the Transhuman Overwatch fought There by KlockB reviews
Earth was conquered by the Combine, but what happens when a certain fantasy Empire also wants their share of the planet? (Spoilers: It'll bite them in the behind. Badly.)
Crossover - Half-Life & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: M - English - Sci-Fi/Horror - Chapters: 8 - Words: 17,545 - Reviews: 62 - Favs: 84 - Follows: 126 - Updated: 5/16/2020 - Published: 10/25/2019
Self-Aware by WirelessW reviews
At the end of an ordinary school day, Literature Club president Monika is interrupted by a strange old man. Then the old man starts talking about different worlds, and the people who live in them. Monika has looked through a hole in the wall. Coomer knows that some people dream.
Crossover - Half-Life & Doki Doki Literature Club - Rated: K - English - Friendship - Chapters: 1 - Words: 1,549 - Reviews: 8 - Favs: 21 - Follows: 17 - Published: 5/6/2020 - Complete
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