Fics like “Creatures of the Cavern”

Xenomorphilia by oofoe (Alien Series, Alien Quadrilogy (Movies))

The Mother We Share by lovelyleias (Alien (1979), Aliens (1986), more)

Queen Taylor by DarkPhoenixLady (Parahumans Series - Wildbow, Alien Series, more)

Courtship Rules by UnholyPlumpPrincess (Alien Quadrilogy (Movies), Aliens vs Predators Series - Various Authors, more)

Taking Aim by sootnose (Aliens vs Predators Series - Various Authors, Alien vs Predator (Movies), more)

Xenomorphs by WileyC (幼女戦記 | Youjo Senki | Saga of Tanya the Evil (Anime), 幼女戦記 | Youjo Senki | Saga of Tanya the Evil (Manga), more)

First Contact by Erwynne (Alien Series, Alien Covenant: Origins - Alan Dean Foster, more)

Enforced Evolution: Now Mirrored to AO3 by STMPD (Ranma 1/2, Aliens vs Predators Series - Various Authors, more)

Alien Vs Predator: The Siberian Experiment by FandomFictionFun (Alien vs Predator (2004), Aliens vs Predators Series - Various Authors, more)

Welcome Home by UnholyPlumpPrincess (Aliens vs Predators Series - Various Authors, Alien Quadrilogy (Movies), more)

electric by squilf (Alien Series, Alien Quadrilogy (Movies))

A Selection of Values in the Biomechanical Spectrum by kosmonauttihai (Alien Series, Aliens vs. Predator (Video Game 2010), more)

Heartcoded by WhatItShouldveBeen (Alien Series, Alien Covenant: Origins - Alan Dean Foster, more)

Those Whom Fortune Favours by JShale (Prometheus (2012), Alien Series, more)

Your Heart Pulling Against Mine by Midala (Alien (Prequel Movies 2012 2017), Alien Series, more)

Quirk: Xenovore by The_Plauge_Dragon (僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Alien Series, more)

Just The Cleaner by BunnyQuill (Alien: Earth (TV 2025), Alien Series)

Xeno Overrun by IkeaMeatballParade, Xxdeal (Alien vs Predator (2004), Alien Series, more)

Universal DOOM by ImpulsiveWeaver (Doom (Video Games), Ghostbusters (Movies 1984-1989), more)

Queen of the Hive by CambrianBeckett (Alien Series)

Fics like Creatures of the Cavern