Daily Random Chunk

The world is empty except for one 16x16 chunk. Every in-game day, that chunk grows three layers deeper, and each layer is made of a single randomly picked block — could be stone, could be lava, could be something useless. The run is about surviving on what the chunk happens to give you, for 100 days, until you can reach the End.

Inspired by Carv's video "Every Day This One Chunk Expands RANDOM (100 days)": https://www.youtube.com/watch?v=oY8x5UXn6q0

How it works

• You start on a grass platform with a few oak trees, some animals, and two villagers.
• There are no walls or barriers. If you walk off the edge, you fall into the void.
• Every day (24000 ticks), three new layers generate under the chunk. Sleeping through the night counts as a day passing.
• A day counter is shown in the top-left corner of the screen.
• Water and lava can't flow off the sides of the chunk, so a lava layer stays where it is instead of pouring into the void.
• On day 100, the deepest layer generates as an End portal frame with no eyes in it. It's up to you to gather what you need to activate it.

The Nether

The Nether is also a single chunk. It doesn't grow — it's generated once as a stack of themed chambers you dig down through: nether wastes, a gravel graveyard with skeleton spawners, crimson and warped forests, a soul sand valley, a blaze spawner room, an enderman spawner room, basalt deltas, a chamber with a loot chest, an ancient debris layer, a lava sea, and an obsidian floor at the bottom. This is where you get blaze rods and ender pearls, since there's no other reliable source in the run.

Options

When creating the world (Edit Game Rules), or later with /gamerule, you can toggle what the random layers are allowed to contain: water, lava, fire, hazard blocks (magma, cactus, etc.), valuable blocks (diamond blocks, netherite, etc.), and functional blocks (chests, furnaces, spawners). Everything is enabled by default.

How to play

Fabric mod for Minecraft 1.20 through 26.2 — download the file matching your game version. Requires Fabric API. Must be installed on both server and client for multiplayer.

Important: when creating your world, select the "Daily Random Chunk (100 Days)" world type. Without it, you'll get a normal world.