Gradual, runtime world renewal for long-lived Minecraft worlds - unused terrain renews naturally while inhabited areas stay protected.
Memento helps existing Minecraft worlds evolve safely over time.
It allows abandoned terrain to renew naturally, while protecting places that still matter.
Nothing happens near active players. Nothing is forced.
The system is conservative, explainable, and server-friendly.
Memento is especially helpful for:
Instead of pushing players farther outward, the world itself can make room.
Memento analyzes region files directly instead of loading thousands of chunks in-game.
This keeps server impact low — even on very large worlds.
Renewal only happens when:
If nothing happens, the system explains why.
You do not need to memorize command options.
Auto-completion guides you once you know the basic flow.
Stand where renewal should be allowed:
/memento add witherstone mystone
This marks the surrounding area as allowed to renew once it becomes inactive.
You can adjust maturity later if needed:
/memento alter witherstone mystone daysToMaturity 0
Useful for testing.
/memento inspect mystone
The system explains what it is waiting for — for example:
Renewal only happens when chunks unload naturally.
To allow that:
Nothing is forced. Renewal waits until the world is quiet.
/memento add lorestone mybase
Prevents renewal inside that area.
Remove it later with:
/memento remove mybase
/memento visualize mystone
Shows temporary particle effects marking the exact area influenced by the stone.
Use this to:
Visualization does not change terrain — it only shows influence.
Memento is intentionally cautious.
If nothing happens, it will explain why.
Memento – Natural Renewal
Let the world move forward — while preserving what matters.