Chunkshift Roulette

Quickstart

1. Enter a world with Chunkshift Roulette enabled. No special item, recipe, or command is required.
2. Wait briefly in your starting area, or walk across a chunk boundary. The chunk containing you will begin transforming when it is detected.
3. Watch as the chunk’s non-air blocks are replaced with random blocks.
4. Explore neighboring chunks to trigger more rolls. Each previously untouched chunk is transformed only once.
5. Move carefully and bring supplies: the result can include ores, utility blocks, fluids, TNT, lava, magma, cactus, and other dangerous or useful blocks.

The transformation happens progressively, so remain nearby for a moment if a chunk has not finished changing.

Overview

Chunkshift Roulette turns Minecraft exploration into a block-by-block lottery. When a player enters an unprocessed chunk, each eligible block in that chunk is replaced by a randomly selected block from a large vanilla block pool.

A chunk is 16 blocks wide by 16 blocks long and is processed throughout the normal world height, from Y=-64 through Y=319.

Chunks are tracked independently and are not rerolled when you:

• Leave and re-enter them
• Rejoin the world
• Restart the world
• Visit them with another player

The effect applies in each dimension, so the same chunk coordinates in different dimensions are treated separately.

What It Adds

Chunkshift Roulette does not add items, mobs, structures, or crafting recipes. Its main feature is the world transformation mechanic.

Possible replacement blocks include:

• Terrain: stone, deepslate, dirt, sand, gravel, clay, mud, snow, ice, obsidian, and bedrock
• Nether and End materials: netherrack, soul sand, basalt, blackstone, quartz, end stone, purpur, and Nether bricks
• Ores: coal, iron, copper, gold, redstone, lapis lazuli, diamond, and emerald ores, including their deepslate variants
• Wood and building blocks: logs, planks, leaves, glass, panes, fences, walls, stairs, slabs, bricks, and stone bricks
• Plants and decorations: flowers, grass, ferns, moss, azalea, bamboo, sugar cane, cactus, pumpkins, melons, and hay
• Utility and redstone blocks: crafting tables, furnaces, smokers, blast furnaces, anvils, enchanting tables, jukeboxes, note blocks, pistons, observers, dispensers, droppers, TNT, and target blocks
• Fluids and hazards: water, lava, magma, soul blocks, wither roses, slime, honey, and sponges
• Lighting: torches, soul torches, lanterns, soul lanterns, glowstone, and sea lanterns

The pool is selected from vanilla blocks and is not limited to blocks that normally generate in the biome or dimension being transformed.

How To Use

Triggering a Chunk Roll

Simply move into a chunk that has not been transformed before. The mod checks player locations periodically and starts processing the current chunk automatically.

You can trigger chunks by:

• Walking or sprinting across a boundary
• Traveling by boat, minecart, elytra, or other movement method
• Entering a chunk underground or above the surface
• Visiting a new chunk in another dimension

There is no activation button or special interaction.

What Changes

Every non-air block in the selected chunk is considered individually. Each eligible block receives its own random result, so a single chunk can contain a chaotic mixture of terrain, ores, plants, machines, liquids, and decorative blocks.

Existing block shapes and arrangements do not protect them from the roll. Workstations, redstone components, natural terrain, and building materials can all be replaced. Do not depend on an unprocessed chunk to preserve a build or a storage area.

What Stays Unchanged

The following are left alone:

• Air
• Cave air
• Void air
• End portal frame blocks

The end portal frame protection applies specifically to the frame blocks. Other blocks in an End portal room, including portal-space blocks, can still be transformed.

Crafting And Obtaining

There are no special items to craft or obtain. Chunkshift Roulette is active as soon as the mod is enabled in the world.

All interaction comes from exploring the world and crossing into unprocessed chunks.

Abilities And Mechanics

One Roll Per Chunk

A chunk is marked as completed after its transformation finishes. Returning to it does not create a second roll, allowing transformed areas to become stable locations for bases, farms, and routes.

Blocks placed in a completed chunk are not automatically randomized again.

Random Results

The result is chosen independently for each eligible block. The mod does not try to preserve:

• Biome themes
• Natural terrain layers
• Building designs
• Block orientation
• Redstone layouts
• Utility-block arrangements

A replacement can be valuable, decorative, dangerous, or inconvenient. Even bedrock can be replaced because it is part of the possible result pool.

Air Remains Open

Air blocks are never selected as replacements and existing air is not changed. Caves, gaps, and other open spaces remain open while the solid and liquid blocks around them may be reshuffled.

End Portal Frames Are Protected

End portal frame blocks are never replaced by the roulette. This preserves the frame ring itself, although the surrounding room and portal-space blocks remain vulnerable to transformation.

Processing Time

Large chunks are processed over time rather than changing in one visible instant. Several chunks may also be waiting to transform if multiple players explore rapidly. Avoid assuming that a chunk is safe until its changes have finished.

Progression And Strategy

• Secure important items first. Keep valuables in your inventory while exploring unprocessed areas. Storage blocks and workstations may be replaced during a roll.
• Explore cautiously. A newly entered chunk can contain lava, water, TNT, magma, cactus, hostile-environment blocks, or sudden unstable terrain.
• Carry emergency supplies. Bring food, tools, building blocks, and a way to handle unexpected fluids or falls.
• Scout from a safe position. Look into a new chunk before crossing its boundary when possible, then enter only when you are ready for the roll.
• Mark transformed chunks. Once a chunk has finished changing, it will not reroll, making it useful to mark safe routes and settled base locations.
• Build after transformation. Establish permanent structures in completed chunks so the roulette does not replace their foundations or components.
• Search every new area. Randomized chunks can produce ores, enchanting tables, furnaces, redstone blocks, and other valuable resources in unusual places.
• Use the chaos creatively. A chunk may become a ready-made construction palette, an unexpected resource field, or a dangerous obstacle course.