Size Matters

First-person laboratory puzzles with a shrinking scientist racing against time

Mazen Games · Published by GrabTheGames · Released Mar 12, 2021

Action Adventure Casual Indie Racing Simulation

Reviews: Very Positive; 91% of 174
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 5 years ago; Aug 21, 2021
Minimum PC: GTX 650 Ti; 4 GB RAM · 4 GB disk; Full requirements

What is Size Matters?

You play a scientist who accidentally swallows a shrinking chemical in this single-player, first-person puzzle game. Each timed attempt involves searching the laboratory for formulas and ingredients, processing chemicals, and making an antidote before you become too small. As you shrink, you move objects and climb to reach supplies and equipment.

For you if...

+you enjoy prioritizing tasks under a strict time limit
+you prefer short sessions built around repeated attempts

Not for you if...

−you prefer puzzles without jumping or rearranging objects

What players say

91% of 174 reviews are positive

Players praise the changing sense of scale and the range of gameplay settings. Critics say the tasks become repetitive and lack variety.

Screenshots and trailer

Size Matters system requirements

Minimum: GTX 650 Ti, 4 GB RAM, 4 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7/8.1/10 32-bit or 64-bit
Processor: Quad Core 2.6 GHz
Graphics: Nvidia GTX 650 Ti 2GB or AMD Radeon HD 7970 3GB
Memory: 4 GB RAM
Storage: 4 GB available space
DirectX: Version 11

Does Size Matters have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Size Matters run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 57
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English, German, Spanish - Spain, Czech, Polish, Portuguese - Portugal, Russian, Simplified Chinese, Italian, Portuguese - Brazil, Spanish - Latin America, Turkish, Greek, Japanese, Korean, French.

Does Size Matters use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam