Jacob's Prehistoric World
Java mod listed for Minecraft 1.20. File opened and checked on 11 Oct 2026; downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.







This mod uses GeckoLib 4.3 animation mod.
Uncover the forgotten secrets of prehistory with my Minecraft modification! Embark on thrilling research into ancient fossils to obtain genetic material, which will be used to create a time machine. Step through the portal and immerse yourself in a prehistoric world, where you'll encounter diverse dinosaurs, posing a challenge even for the most experienced players. Battle them, acquire rare items such as hides, and use them to craft weapons and armor with unique abilities. Will you dare to face the perils of bygone eras?
Mobs:
-
Tricey
The first mob that you can find in the new dimension.
He is not going to attack you unless you will do so first.

- Rapty
Relatively small carnivore that will attack you when spotted.
He will attack you by jumping on you and using his claws.

- Brachy
Huge and slow herbivore that you dont want to make angry.
His stomp attack deals a lot of damage and knockback.

- Ptery
Ptery can fly but prefers to walk when he is not forced to use his wings.
If you attack him he will fly up to the sky and throw 3 rock attacks at you.

Ptery's Fly Attack

- Mosy
Water creature that u can found in the prehistoric oceans.
He deals a lot of dmg and is much faster that u in the water so u dont want to be caught there.

- Rexy
A big carnivore. He deals a lot of damage and is agressive towards you.

Spear Caveman:
Basically a caveman using a spear.


Slingshot Caveman:
A caveman that attacks you with his slingshot. If u get too close u will get kicked and knocked back.

Kick Attack:

Big Caveman:
Really big caveman that is so strong he can make shockwaves and throw rocks at you.

Shockwave Attack:

Rock Throw Attack:

Craftings:
Archeology Table

Research Table

Time Machine

Rapty Claw Glaive

Ptery Chestplate

Mosy Fins

Brachy Cape

Brachy Hood

Rapty Leggings

- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 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 jacobs_prehistoric_world-1.0.2.jar — drop this file into the mods folder
- Download size: 1.6 MB
- Download link checked 17 Oct 2026 — working
These come from our own check of the pack file, not from the source page.