Size Stealer
by GSV
Size Stealer is a Fabric utility mod that changes player scale through combat, letting a character start tiny and grow by defeating mobs.
What it does
A player enters the world at 0.25 times normal scale, so grass blocks look larger and the terrain feels more dangerous. Each mob defeated, from a simple chicken to a Wither, adds a small amount of scale, about 0.1 per kill, and growth continues toward a maximum of roughly 10 times the original size. At full growth a player can walk over hills and look down on the landscape.
The mod works on client and server, so the server and every player must install it. It requires Fabric API and Pehkui. Pehkui supplies the scaling engine, which lets the size change happen in real time. Files are published for Fabric only, across six game versions 1.20.1 – 1.20.6, and the latest file is 1.0.0 for 1.20.6, released 2026-02-05. The mod is released under All rights reserved and is not open source.
Key features
Tiny start
Players spawn at 0.25 times normal scale, which makes ordinary blocks and distances much larger.
Smooth real-time scaling
Size changes appear gradually while the player grows, handled by the Pehkui scaling library.
Size-based gameplay
Small players move faster and reach blocks less far, while large players can see over cave walls and hills.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Survival challenges
A run starts as a vulnerable creature and must fight its way up to a towering giant.
Content creation
The growth arc suits 100 Days challenges and videos about becoming a giant.
Multiplayer sessions
Groups on a shared server can compare sizes and race through the same progression.
Who it’s for: The mod suits players who want a combat-driven progression in which the character's size is the main goal, including creators and server groups running scale challenges.
How it compares
Simple Tiny Items is a Fabric mod for 1.21.11 that is client-side only and not open source, so it does not touch the server. Let It Grow is a Fabric and Quilt mod for 1.17.1 – 1.20.1 that runs on client and server, under the MIT License and not open source. Shoulder Surfing - Pehkui Compat is open source under the MIT License, is client-side only, and supports Fabric and Forge for 1.20.1 – 1.21, so it is a client add-on rather than a progression system.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Size Stealer | Fabric | 1.20.1 – 1.20.6 | Client and server | 2026-02-05 |
| Simple Tiny Items | Fabric | 1.21.11 | Client-side only | 2025-12-23 |
| Let It Grow | Fabric and Quilt | 1.17.1 – 1.20.1 | Client and server | 2023-08-17 |
| Shoulder Surfing - Pehkui Compat | Fabric and Forge | 1.20.1 – 1.21 | Client-side only | 2025-10-14 |
Questions
Does Size Stealer need Pehkui?
Does the server need Size Stealer?
Which game versions are supported?
In the catalog
Size Stealer is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 11,154 mods support Minecraft 1.20.6.
More from GSV
Similar mods
What the author says
📏 Size Stealer: The Ultimate Growth Challenge Have you ever felt too small for this blocky world? Well, now you literally are! Size Stealer is a unique progression mod for Fabric 1.20.1 that turns every combat encounter into a literal growth opportunity. You start your journey as a tiny, vulnerable creature and must…
Official listing
- Modrinth page
- modrinth.com/mod/size-stealer
- Owner
- GSV
- Published
- 2026-02-05
- Updated on Modrinth
- 2026-02-05
- Facts verified
- 2026-10-15