A Long Time Ago
Java mod listed for Minecraft 1.20. 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 adds more than a hundred creatures from past ages, as much as 500 million years ago and as little as 300 years ago.
It all begins with a single block: the fossil ore. When you mine it, you'll get one fossil from one of the 13 eras that span from the present to the very origins of life.
With a little set up, you'll be able to extract DNA from these fossils, cultivate and embryo and incubate it.
Each incubated embryo can be hatched into a baby creature, that will take some time to raise.
But once you have two adult creatures, you can breed them!
If you have Patchouli installed, you can access a step by step guide on all these features. Geckolib is necessary for rendering.
The first release has 10 creatures for each era, making a total of 130 creatures. For the future, I plan on polishing existing features and, of course, adding new creatures from my own list and from suggestions!
- 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 a_long_time_ago-1.0-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 2.6 MB
- Download link checked 18 Oct 2026 — working
These come from our own check of the pack file, not from the source page.