Gecko King's Aliens vs Predator Mod
Java mod listed for Minecraft 1.20–1.21. File opened and checked on 6 Oct 2026; downloads from the MC Java Mods app on Android.
I don't know my version or loader








This is a mod about the Aliens and Predator franchises; adding xenomorphs, anathema (pathogens), and yautjas to your worlds!
I've noticed that for 1.20.1, there aren't many Alien mods for Forge. Gigeresque is unfortunately a Fabric only mod. You can use it in Forge/Neoforge with Sinytra Connector, but the developers stopped updating it for 1.20.1 and it often doesn't work in large modpacks. The Box of Horrors adds the facehugger, chestburster, xenomorph, and yautja; but only as cameos. So because of that, I've decided to make this mod!
So far, this mod adds xenomorphs, anathema, yautjas, xenomorph chitin armor, royal xenomorph chitin armor, and yautja armor.
Xenomorphs spawn naturally in all of the Overworld's biomes when it's nighttime. Hellish Xenomorphs spawn naturally in all of the Nether's biomes. Anathema spawn exclusively in dungeons. Yautjas spawn in jungles.
Xenomorphs and anathema will fight each other, just like in Aliens: Fireteam Elite. Yautjas will hunt down players and most hostile mobs (including xenos and anathema).
Xenomorphs spawn more frequently in caves, and they get easier to find the deeper you are.
Disclaimer: Anything with (W.I.P.) after its name is either not yet available in survival, or it just has no use for the time being. Remember that this mod is just a beta, after all.
Anyways, more updates are coming out sometime soon.
Links:
Join my Discord Server! https://discord.gg/WRqRACyzE7
Support me on Patreon! https://www.patreon.com/GeckoKingYT
Subscribe to my YouTube channel! https://www.youtube.com/@therealGecko_KingYT
Modrinth link: https://modrinth.com/mod/gecko-kings-aliens
Media
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as gecko_kings_aliens_mod-1.1-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 237 KB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.