keyradar
Size Matters

Size Matters

Game Redeemed on Steam

from GrabTheGames

The lowest price is £0.12 at Kinguin (4.6 out of 5 on Trustpilot) · We compare 6 shops with 12 offers available · Updated on 02/10/2026.

Best price

£0.12

at Kinguin

most expensive £6.97

12 offers from 6 shops

Best price

Kinguin 4.6 su 5 secondo Trustpilot

Discount code
−10% LUCKY10

£0.01 off

Code copied

Eneba 4.4 su 5 secondo Trustpilot

Gameseal 4.2 su 5 secondo Trustpilot

Discount code
−10% LEVELUP10

£0.03 off

Code copied

Eneba 4.4 su 5 secondo Trustpilot

EU key: check with the shop that it activates in the UK

G2A 4.0 su 5 secondo Trustpilot

Discount code
−15% APP15

£0.09 off

Code copied

G2A 4.0 su 5 secondo Trustpilot

EU key: check with the shop that it activates in the UK
Discount code
−15% APP15

£0.10 off

Code copied

Kinguin 4.6 su 5 secondo Trustpilot

EU key: check with the shop that it activates in the UK
Discount code
−10% LUCKY10

£0.07 off

Code copied

Driffle 4.4 su 5 secondo Trustpilot

Discount code
−10% APP10

£0.07 off

Code copied

Instant Gaming 4.7 su 5 secondo Trustpilot

G2A 4.0 su 5 secondo Trustpilot

Discount code
−15% APP15

£0.48 off

Code copied

G2A 4.0 su 5 secondo Trustpilot

EU key: check with the shop that it activates in the UK
Discount code
−15% APP15

£0.48 off

Code copied

Kinguin 4.6 su 5 secondo Trustpilot

Discount code
−10% LUCKY10

£0.77 off

Code copied

Prices updated on 02/10/2026 at 03:29. The final price is the one shown by the shop at checkout. ≈ marks a price converted from euros at today's ECB rate; without it, it is the shop's own price in pounds.

What it is about

Size Matters is an action-adventure game in which the player takes on the role of a scientist who shrinks every second. Set in a laboratory, the player must collect ingredients and formulas to create an antidote before shrinking to critical dimensions. The gameplay mechanics are platformer, using tools such as the Chemical Processor, the Reverter, and the Antidote Producer. Each formula is linked to a machine in the laboratory, and time is crucial, as the player must solve puzzles to access the necessary materials. The game is single-player and offers cloud saves.

Summary generated by artificial intelligence from the shop's description and machine-translated · How we write it

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How the comparison works

How often we update

We download the price lists of every shop once a day, in the early hours of the morning. Every page shows the date of the last update: between one run and the next a price can change, so what counts is the price you see at the seller's checkout.

Where the key works

A key activates in a specific market. 92% of the ones we list are global or European, but some are tied to another country and don't work elsewhere: that is why the validity is shown in the specifications. We leave out cards in foreign currencies and markets that can't be used in the UK.

Why it costs less

The shops we compare are resellers and marketplaces, not the publisher: they set the price, and on some of them individual sellers do. That is why the same game varies a lot from one shop to another: the median difference we measure is 20%, and on one product in six it exceeds 50%.

What happens after the click

We take you to the shop's website, where the purchase happens: we don't sell anything and we don't handle payments. We record the click to know which offers people are interested in, and we keep the IP address only as a fingerprint, never in plain text. If you buy, some shops pay us a commission at no extra cost to you.