Looking for a cheap Critical Mass key? As of 29 Aug 2026 the lowest offer is £0.54 at G2Play, picked from 9 offers across 9 stores. Keyshops start at £0.54, official stores at £1.59. On PC the keyshop wins on price in most comparisons, but then you are buying a code from a third-party seller, so check the activation region. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.
Before you start looking for a cheap Critical Mass PC key, check the essentials. Developed by Manic Game Studios. Published by Manic Game Studios. PC released date: 20 Jun 2011. Genres: Indie, Casual. Categories: Family Sharing, Single-player, Steam Achievements.
Using our price comparison and verified discount codes, you can buy a Critical Mass key for as low as £0.54. This deal is available at G2Play and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Critical Mass price on PC. Check the Critical Mass price history to buy at the best moment.
As of our last update (we refresh Steam pricing multiple times a day), the Critical Mass Steam price is £1.59. You can save an extra ~6% by paying with a discounted Steam gift card.
Our price tracker covers both official retailers and key marketplaces, so you can find Critical Mass on sale even outside seasonal promotions. We currently detect 9 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.
Based on our data, Critical Mass is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.
The spread between offers was wide: from £0.24 to £4.16. The cheapest offer came most often from Gameseal: 48 of 143 days with data. We have recorded offers from 9 stores in total, and from 1 in the most recent reading. The current price sits mid-range against its own history, cheaper on 64% of days with data.
Yes. Critical Mass has an official page on the Steam Store. You can also buy a Critical Mass Steam key from third-party sellers. Our price comparison currently includes 9 offers with Steam DRM. Pick one to ensure your Critical Mass download happens on Valve's platform.
Yes, with minor tweaks. Critical Mass is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Critical Mass on Steam Deck.
According to our data Critical Mass is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.
No - XD.deals is not a store. We are a price-comparison service that tracks the best Critical Mass deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.
Want to buy at the best moment? Set a price alert on XD.deals and get notified when Critical Mass hits its next historical low.
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