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Island Stretcher (Bigger or Smaller Worlds)
"Want more island? Or a cozy little rock? You choose."

How do I install Island Stretcher (Bigger or Smaller Worlds)?
Download the free ProjectMods desktop app, then install Island Stretcher (Bigger or Smaller Worlds) for Muck in one click.
</>What does Island Stretcher (Bigger or Smaller Worlds) do?
Muck hands you a fixed-size island every run. Island Stretcher lets you decide how big your next world is. Drag the Island Size slider above 1 for a sprawling landmass with more room to explore and space to build big - camps, caves and resources spread out across a wider world. Drag it below 1 for a compact island where everything's close together - great for quick runs, tighter challenges, or racing the clock. The size applies to the NEXT world you generate, so set it on the main menu (or before starting a new game) for it to take hold. Back at 1 and worlds generate at their normal size. Pairs naturally with Waypoint Warp and Zoomies for crossing those bigger islands fast.
</>What is Island Stretcher (Bigger or Smaller Worlds)?
Island Stretcher from ProjectMods, a free game modding platform and desktop app, adds an Island Size slider to Muck's world generation. Set it above one for sprawling landmasses with more room to explore, or below one for compact islands with tighter challenges. Applies to your next new world.
</>Common questions about Island Stretcher (Bigger or Smaller Worlds)
What does Island Stretcher do in Muck?
Island Stretcher is a Muck mod from ProjectMods that lets you control the size of your island before generating a new world. It adds an Island Size slider that you set before starting a new game. Drag it above one to create larger islands with more terrain to explore, more spread-out resources, and more room for ambitious builds. Drag it below one for smaller, more compact islands where everything is closer together. The setting applies to the next world you generate, so your existing worlds remain unchanged. Set it back to one and the game creates its standard default-sized island.
How much bigger can Island Stretcher make a Muck world?
Island Stretcher can generate significantly larger islands than Muck's default size. At higher slider settings, the landmass expands in all directions, giving you substantially more ground to cover. Resources, caves, structures, and points of interest spread out across the expanded terrain, which means more exploring before you have seen everything and more strategic decisions about where to build your base. The larger worlds feel genuinely expansive and can change the pacing of a run dramatically since travel time between locations increases. Movement mods like Zoomies and Waypoint Warp become especially valuable on these bigger islands to keep travel manageable.
What are compact islands good for with Island Stretcher?
Setting the Island Size slider below one creates smaller, denser islands that change the game feel significantly. Everything is closer together, so resources, mobs, structures, and chests are packed into a tighter space. This is great for quick runs where you want to find gear fast and reach the boss without long travel. It creates more intense survival pressure since mob camps are closer to your base and harder to avoid. Speedrunners benefit from shorter distances between key locations. Small islands also make multiplayer more chaotic and fun since all players are operating in close quarters. The compact format turns a single Muck session into a faster, punchier experience.
When do you set Island Stretcher before a Muck run?
Set the Island Size slider before starting a new game, just like Flat Earther's terrain height setting. The slider affects how the world is generated, so it needs to be configured before you create a new world. Once a world is generated at a particular size, that world keeps its dimensions permanently. If you want a different size, generate a new world with the slider in a new position. This means you can maintain multiple saved worlds at different sizes and switch between them. A sprawling exploration world for one mood, a compact challenge world for another. Adjust the slider, start a new game, and the island generates at your chosen scale.
How does Island Stretcher combine with other world-shaping mods in Muck?
Island Stretcher pairs with Flat Earther to give you complete control over your Muck world's shape. Island Stretcher handles horizontal size while Flat Earther handles vertical terrain height. A large flat island creates a massive building canvas. A small mountainous island creates a dense vertical challenge. Set both before generating your world and they combine their effects on the terrain. On larger islands, movement mods become essential: use Zoomies for fast ground travel, Waypoint Warp for base teleportation, and Blink for quick hops across the expanded landscape. Daylight Saving with longer days gives you more exploration time to match the bigger world.
What options does Island Stretcher (Bigger or Smaller Worlds) include?
Island Size
How big your NEXT generated world is. 1 is normal, 2 is a big sprawling island, 0.5 is a compact one. Set it on the menu before starting a new game.
Island Stretcher is a free Muck mod from ProjectMods that lets you choose how big or small your next Muck island is before generating a new world.
System Requirements
What features does Island Stretcher (Bigger or Smaller Worlds) include?
- Scale the island size up or down with a simple slider before generating a world
- Set above one for a massive island with more room to explore and build
- Set below one for a compact, dense island where everything is within reach
- Fine-tune the exact size to match your group's preferred play area
- Affects the entire world generation so terrain, resources, and spawns all scale together
Best For
- Large groups who need a bigger island so everyone has space to build without crowding
- Solo players who want a cozy small island where nothing is far away
- Explorers craving a massive world with more ground to discover and more secrets to find
- Speedrunners wanting a tiny island where resources and objectives are close together
- Friends who keep complaining the island is too big or too small and want it just right

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