1 - 20 of 68 Works in Viper (XCOM)
Navigation
Listing Works
-
Tags
Series
- Part 1 of Xcom story (Sectral)
-
Tags
Summary
Five years after the Liberation War, a mission to extract a mole in the ADVENT Remnants goes horribly wrong. With the threat of traitors amongst XCOM's ranks, former operative William Mackenzie is pulled out of retirement. William enters into a world alien to the one he left behind, a world trying to rebuild from the destruction of the Liberation War and wipe away the taint of the Elders. He soon finds himself falling down a rabbit hole of terrorist plots, schemes and conspiracies in a secret war that could end XCOM itself.
And leading him into a new world is the only survivor of the failed extraction: a jaded, chubby, French-accented viper.
-
A reason to fight by 404nocreativeusername
Fandoms: XCOM (Video Games) & Related Fandoms
30 May 2025
Tags
Summary
The world broke in the past thirteen years of Advent occupation; scattered remnants of camps, patrolling Advent units in the wild, groups of scavengers. It is clear to Luis, an ex-military survivor, that the world has truly lost its way. Alas, there is a certain wonder to the experience of consciousness, one that a viper, freshly separated from Advent, will not let go to waste. Truly, not fitted for another, both in species and in outlook. But perhaps beauty, some joy, and a little bit of companionship may just upturn the previous enemies' perception of the world and one another.
Warning,
This work contains numerous references to suicidal actions and idealizations.
Strong and frequent use of adult terms and language. -
Vipers, Nights, and French Fries by ThisIsARealAccount
Fandoms: XCOM (Video Games) & Related Fandoms
26 May 2025
Tags
Summary
The war for Humanity's autonomy is over, the alien despots of Advent have been overthrown by Xcom and a new age is on the horizon. However, world changing events do not occur without a price. Power vacuums were created in Advent's absence, their alien pawns, once completely under control, now have found their own autonomy, the land and its people are forever changed by their presence. All that's left for Humanity and Xcom to do is pick up the pieces, rebuild, and decide what to do with their former enemies. In a successful city state, located in territory once called the United States, a young man, from humble beginnings, does NOT have the power to fix ANY of these problems. To be fair, it's a big job, and he has his own problems to deal with. Life in the city isn't easy, everyone has to contribute, even him. And it's hard to decide what you want your future to look like, especially in a world filled with so many possibilities, but perhaps his new job will give him some direction. Will he be driven insane by the mundane environment and monotonous labor? Probably. But, will he also meet someone who interests him enough to pull him out of his comfort zone? You'll have to read to find out.
-
Tags
Summary
For all its glory, City 31 is far from perfect. For all its technology and all its advances, it's still got parts of town just as rough as the old world. Something an unsuspecting man is reminded of when he takes a wrong turn on his way home at night.
Things don't exactly go great for him, but... maybe a bit better than he was expecting.
-
Tags
Summary
The war is over. ADVENT has fallen, and XCOM stands victorious.
But victory doesn’t bring peace, not really. The world is fractured, scarred by years of occupation and rebellion. Old systems have collapsed, and what comes next is uncertain.
In the ashes of conflict, survival remains a daily struggle.
A lone scavenger, drifting through the ruins of a recently attacked ADVENT outpost, finds more than just scrap and salvage. He finds a wounded Viper, one of the aliens who once served the enemy. She should be dead. He should walk away.
But something in her eyes lingers.
In a world where mercy can be fatal, one small act of compassion may change everything.
-
Strangers in a Broken World by Edmar_Fecler
Fandoms: XCOM (Video Games) & Related Fandoms
01 May 2025
Tags
Summary
The war is over, the planet liberated, but much still lies in ruin. New clashes with old in distant battlefields, while most still struggle to get by. Isolation may be the best hope for survival, or should one be open minded of the new world? Who's to say.
Even so, humans are naturally social creatures, struggling greatly if deprived of companionship. Fifteen years of isolation would be enough to drive most men mad, for example. But then, perhaps Edmund was already mad? For why else would one be so acceptant of unseen things, waiting and watching from the dark corners of the mountain forests? What's a man to do when the shadows are the only real company he's had for such a long time? Resist the unknown, or explore and embrace it? It would be safer to avoid it, true, but perhaps he's been lonely long enough. The worst it could do was kill him, right? But then again, all actions have their consequences...
TL;DR A lonely man is being stalked by a Viper in the mountains. Stuff happens.
-
Tags
Summary
A Viper discovers the true face of ADVENT and defects after a Psi Operative from XCOM shorts out the chip controlling her. How will she adjust to her new life? How will she be able to integrate with XCOM? And how can she help end the reign of the Elders?
-
Tags
Summary
A simple mission turns out to be not so simple, leaving XCOM operative Leon 'Firecracker' trapped beneath the rubble with the last person he should trust... With no backup, no exit, and their survival tied to fragile cooperation, enemies become something… not quite friends, but not killers either. Just two survivors, waiting for the end — or maybe something else.
Oneshot
-
Tags
Summary
For a camp kid like Jesse, a life inside the walls of New Pittsburgh was all he could wish for growing up, but now—after nearly six years in the so-called model city of the new world—he couldn’t help but wonder if this place was all it was cut out to be; waking up for his nine-to-five in the IT Department of TetraBotics Manufacturing before commuting back home for yet another lonely evening in his Highland Square apartment.
But after a snarky blue adder is finally hired to fill the desk across from his, Jesse quickly finds his day-to-day routine taking a change for the better, and for the worse… but mostly for the worse.
-
Tags
Summary
After a mission that goes wrong, four vipers are held within the Avenger. In new strange and compromising situations, everyone will have to come to terms with some old baggage.
(incomplete, with an ending. Not a good one, it just exists. No further updates will be made)
-
How to Satisfy a Viper by beautiful_viper_empress
Fandoms: XCOM (Video Games) & Related Fandoms
14 Feb 2025
Tags
Summary
Valentina has offered her prey a horrifying bargain for his life.
-
Creeps from the deep by Snussy_Loving_Heretic
Fandoms: XCOM (Video Games) & Related Fandoms
27 Jan 2025
Tags
Summary
It has been several years since the defeat of ADVENT and the earth is finally at some semblance of peace. Strange Occurrences begin to plague the remaining civilizations of humanity and aliens alike as something sinister brews beneath the ocean's surface waiting to strike without mercy. Everything rests on the collective shoulders of one squad and how well they can work together to stop the oncoming threat before it's too late or will the world drown in the depth?
-
Tags
Summary
After the War for Liberation, City 31 stands against the odds. A tentative peace exists within its borders. But the war's closing battles rage on elsewhere, and scavengers continue to toil as everyone desperately seeks scraps of the old regime's technology in order to maintain some semblance of civilized life.
When a massive batch of fertilized viper eggs is found in an ADVENT storage facility, City 31 takes up the cause. Fearful that disposal would look bad to its non-human population, the city asks its resident vipers for assistance in raising the young.
Jia, a former soldier turned schoolteacher, considers the offer. Already familiar with human children and further enticed by the promised increase in basic income, she asks herself: how hard could it be?
-
Morbid Curiosity's Snufftober 2024 Series! (Volume 4) by M0rbid_Curiosity
Fandoms: Earth Defense Force (Video Games), Helltaker (Video Game), Vampire Survivors (Video Game), XCOM (Video Games) & Related Fandoms, Minecraft (Video Game), Mortal Kombat - All Media Types, Batman (Comics), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
29 Oct 2024
Tags
Summary
Holy shit- Volume 4! We're almost done!
Days 22-29 of my entry into the Snufftober challenge started by ARC_5051_Captain_Grav! A writing challenge with a different prompt every day!
I plan to actually finish this year, since I didn't manage to last year.
To make things extra spicy, I added a few rules- No Repeat Fandoms, and No Fire Emblem! I had to figure out 31 different universes for 31 different prompts, without paying my favorite Fandom a visit. Lets see how well that goes~
All of this is organized on Captain_Grav’s discord. (https://discord.gg/9aphJZ3EJs)
Series
- Part 4 of Snufftober 2024 Series
-
Tags
Summary
Jonathan misses the old days. Well, not the days before ADVENT showed up, he barely remembered those. No, he misses the days with his snake girlfriend. Actually, she hadn't been his girlfriend, just someone who listened to him talk while she patrolled the railyard.
These days he's just a lowly janitor employed at a gene clinic, but his days working there are about to end...
...With a bang!
-
Tags
Summary
Thomas was just a regular citizen, living in one of the many Advent cities. When he received a message from Advent about a mandatory medical check-up, he had little choice but to get it over with. His job was on the line, and the last thing he wanted was to get on the aliens’ bad side. Perhaps it wouldn’t be so bad when his nurse was an emerald-eyed Viper.
-
Tags
Summary
La guerra había terminado pero las cicatrices permanecían.
Ethan era un ex-soldado de XCOM. Había pasado años combatiendo a los alienígenas, y los recuerdos de la guerra eran una carga que llevaba consigo todos los días.
Una tarde, mientras patrullaba los bosques cercanos, Ethan encontró a alguien herido entre los árboles.
el cual podría ser o no un viper -
Tags
Summary
It is 11 weeks after the takedown of the psionic network and decapitation strike on the Elders' main base. A viper scientist, of a rare natural descent, had been mobilised into the Advent's peacekeeping force as remaining alien leaderhip struggles to maintain control over territories. She asks a friendly Muton to deliver a letter back to her home in New Australia.
Series
- Part 2 of XCOM, Death, Drones and Interceptors
- Language:
- English
- Words:
- 4,422
- Chapters:
- 1/1
- Kudos:
- 10
- Hits:
- 215
-
Tags
Summary
2 years after the War for Liberation, Firebrand performs a test flight of an experimental interceptor.
Series
- Part 1 of XCOM, Death, Drones and Interceptors
- Language:
- English
- Words:
- 2,690
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 216