
Adds rare life crystals that appear in caves between y = -64 and y = 32.
The default config allows the player to consume 10 max and gain a heart per crystal but both of those numbers can be changed.
Additional config options are provided to disable generation and also to make the generation more rare or common.
Generation Example
SpoilerThis is a slightly compressed visualiztion of generation with default config. Each floating lava block represents a life crystal at a random height below it.
(There is a slight bias in this example as I had to use an ocean so the blocks could be visible but oceans fit the generation conditions more commonly than other biomes)

Update 1.1:
SpoilerAdded the Mini Heart Lantern which is also fully configurable, more sizes are to come but for now this is just a test.
(it's also a very cute block that I think can work in a lot of builds)


Update 1.2:
SpoilerAdded a few configurable underground structures and rebalanced some generation



Notes for modpack makers:
SpoilerIf you want to give life crystals as rewards or add them to lootables, you need to use "simplelifecrystals:life_crystal_item" as "simplelifecrystals:life_crystal" is the block. They are separated for a reason I've forgotten and I don't fancy rewriting to find out why.
Most of the structures are just made of stone/deepslate variants (bricks, walls, slabs, etc) so likely can't break progression. The heart chamber structure, however, generates with red carpet which could break progression in some finely tuned packs.
Bonus fun fact, the command "/item replace entity @a armor.head with simplelifecrystal:life_crystal" makes it look like everyone has cat ears.
- 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 Modrinth — 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 simplelifecrystal-1.2.1-1.20.1 (forge).jar — drop this file into the mods folder
- Download size: 139 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.