Size Matters
Released Mar 2021
You play as a scientist who is shrinking every second in a race against time! Find all the ingredients and formulas scattered around the laboratory, which are necessary for producing the life-saving antidote. But beware, your time is very precious.
87% positive · 514 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam Lowest $2.79 $9.99 −72% Green Man Gaming Steam key $9.99
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Evaluation
Size Matters left Early Access and officially launched on March 12, 2021. During its Early Access period (roughly 2019–2021), the developer was actively building out the game with regular feature updates — adding new laboratories, difficulty modes, achievements, and gameplay systems across updates 1.0.3 through 1.1.0.
The last developer communication specifically about Size Matters was the launch announcement on March 2, 2021, followed by update 1.1.0 on February 18, 2021. The most recent news post (September 21, 2023) is the developer announcing a sequel to a different game (AtmaSphere 2) — it is not related to Size Matters content.
No DLC has ever been listed for Size Matters, no post-launch major content updates have shipped after the 1.0 release on March 12, 2021, and the developer has made no announcements of future content for this title. The game appears to have shipped as a complete, self-contained experience at its 1.0 launch, with all development work completed during the Early Access phase. There are no outstanding commitments and no signals of planned additions.
Evidence
Developer announced Size Matters leaving Early Access on March 12, 2021, with localization into multiple languages — signaling the game's completion and full release.
Developer's most recent post (September 21, 2023) announces a sequel to a different game (AtmaSphere 2), with no mention of new content for Size Matters.
Media
Details
Developer
Publisher
GrabTheGames
Achievements
57
Platform
Windows
Controller
—
Steam Deck
Not rated
Players
Single-player
About this game
Size Matters is heavily inspired by "Inch by Inch" - special thanks to devs!





- In Size Matters you take on the role of a scientist who has unintentionally ingested a chemical which causes him to shrink every second!
- As you shrink, getting around the laboratory gets trickier, with the game essentially turning into a platformer as you
figure out ways to climb up onto where the equipment and ingredients are located! - Using the equipment, you need to manage to make an antidote in a limited time, before you shrink completely! Go through the formulas you find and follow them accurately!
- Operate equipment such as: Chemical Processor, The Reverter, Code Combiner, Antidote Producer and more!
- But beware, your time is very precious - you need to process ingredients using lab equipment all while searching for missing components or rearranging the lab so you're able to reach stuff when you're smaller!


- Search the laboratory for ingredients and formulas which aid you to produce the three key components of the antidote!
- Every formula is tied to one of the machines in the lab. You can produce new ingredients, which may be used in other formulas or are one of the three key ingredients you need for the antidote
- Once you collect three key ingredients, place them inside the antidote producer to produce an antidote!

- When you shrink too small the game is over!

- Tweak all kinds of settings, such as the height at which you start, how many double jumps you can do, or how long it takes for the Chemical Processor to complete its process!
Last evaluated Jun 26, 2026
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