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Size Matters (Grow or Shrink)
"Become a towering giant or a tiny gremlin. Your call."

How do I install Size Matters (Grow or Shrink)?
Download the free ProjectMods desktop app, then install Size Matters (Grow or Shrink) for Muck in one click.
</>What does Size Matters (Grow or Shrink) do?
Heads up: the bigger you go the faster the world seems to rush past, and the smaller you go the more you feel like you are plodding. That is your point of view moving up and down, not a bug - your actual running speed is exactly the same at every size. Ever wanted to stomp around Muck as a giant, or sneak through the world as a knee-high gremlin? Size Matters puts your height on a slider. Drag it up to tower over mobs, trees, and your friends, or drag it down to shrink into a tiny explorer seeing the island from a whole new angle. Everything in between is fair game, so you can find whatever size feels the most ridiculous. Your friends see every bit of it, so it is at its best in a full lobby. The space you actually take up never changes, which is the whole trick: you can go enormous or tiny and still run, jump and squeeze through exactly as you always could. Set it back to normal any time and you snap right back to your usual self - no weirdness left behind.
</>What is Size Matters (Grow or Shrink)?
Size Matters from ProjectMods, a free game modding platform and desktop app, puts your Muck character's height on a slider. Grow to tower over trees and mobs, shrink to knee height for a fresh perspective, or anything in between. Resets cleanly to normal size any time.
</>Common questions about Size Matters (Grow or Shrink)
What does Size Matters do in Muck?
Size Matters is a Muck mod from ProjectMods that lets you change your character's size using a slider. Drag it up to grow into a towering giant who looms over trees, mobs, and friends. Drag it down to shrink into a tiny character who sees the island from knee height, making everything around you feel massive. The slider covers a wide range so you can find anything from a subtle height boost to an absurdly large or small character. Set it back to the default value and you snap right back to your normal size with no lasting effects. It is a purely fun visual mod that transforms how the world looks and feels around you.
Does changing size affect gameplay in Muck?
Size Matters changes how you look and how high you see from, not the space your character takes up. That is deliberate. It means you can go enormous or tiny and still run, jump, climb and squeeze through exactly as you always could, with none of the getting stuck or getting flung that comes from a character who is genuinely the size of a tree. When you go big the world drops away below you and you look down on trees and mobs. When you go small everything towers over you and the island feels enormous. Your friends see the change too, so the comedy lands in multiplayer. If you would rather your size changed how you move as well, switch on Speed Follows Size and bigger will stride quicker while smaller takes slower steps.
What sizes can you set with Size Matters in Muck?
The size slider in Size Matters covers a wide range in both directions from your normal character height. At the large end, you can grow to several times your normal size, becoming a towering figure that dwarfs everything on the island. At the small end, you can shrink to a fraction of your height, becoming a tiny character who has to look up at mushrooms and flowers. Everything between those extremes is available on the slider, so you are not locked to preset sizes and can fine-tune your character's scale to exactly what looks or feels right.
Is Size Matters good for multiplayer Muck sessions?
Size Matters is one of the best multiplayer mods in the Muck collection because the visual comedy of mismatched sizes is immediately obvious and hilarious to everyone in the game. One player towering over the group as a giant while another scurries around at ankle height creates memorable moments that players naturally screenshot and clip. Coordinated groups can all set different sizes for a surreal group photo. The giant player can serve as a landmark that everyone navigates toward. The tiny player can role-play as a scout or a gremlin. It adds a layer of personality and humor to every multiplayer session that purely mechanical mods cannot match.
What mods pair well with Size Matters for fun in Muck?
Size Matters pairs naturally with other visual and fun-focused mods. Screenshot Mode captures the hilarious visual results of extreme sizes with clean, UI-free shots. Ghost Protocol lets you fly as a giant for towering aerial views or as a tiny character for an ant's-eye flying experience. Zoomies at tiny size makes you feel like a speeding insect, while Zoomies at giant size looks like a kaiju rampage. Sky Hopper lets your giant character bounce across the map in enormous leaps. Gravity Gun at giant size lets you grab and fling objects that feel proportionally tiny. The visual comedy scales with whatever other mods you combine it with.
What options does Size Matters (Grow or Shrink) include?
Player Size
Your size compared to normal. 1 is default, higher makes you a giant, lower shrinks you down. Back to 1 restores your real size. You change how you look and how far you see from - the space you take up stays as it is, so you keep moving around the island exactly as you always did, however big or small you go.
Speed Follows Size
Off by default. Turn it on and your move speed matches your size exactly — 5x size is 5x speed, 0.5x size is half speed.
Size Matters is a free Muck mod from ProjectMods that lets you grow into a giant or shrink to a tiny character in Muck using a simple size slider.
System Requirements
What features does Size Matters (Grow or Shrink) include?
- Drag a single slider to scale your character from tiny to towering giant
- Go massive to stomp across the island and tower over enemies and trees
- Shrink down to explore the world from a completely new miniature perspective
- Adjust size on the fly without restarting or re-entering the game
- Find any size between extremes for subtle tweaks or dramatic transformations
Best For
- Players who want to feel like a kaiju stomping through a tiny island village
- Friends playing at different sizes for hilarious group screenshots and videos
- Anyone curious what Muck looks like from ant-sized ground level
- Content creators making comedy videos where size changes are the punchline
- Groups inventing hide-and-seek games where the hider shrinks to nearly invisible
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