A Shift Quantum Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €0.64 (€1.04 with fees, -74%) at Kinguin, 74% below the €3.99 (no fees) Steam price · 6 verified stores, 7 offers in stock · Updated 07h 06min ago.
Final prices with fees and discounts applied
Shift Quantum for PC starts at €0.64 (€1.04 with fees) at Kinguin, a Steam key, which is 74% under the €3.99 (no fees) it costs on the official store.
That €0.64 (€1.04 with fees) already includes the OCTGOC10 coupon, so apply it at checkout or the store will show you a higher price.
Supply is thin — 7 offers from 6 stores — and thin supply keeps prices steady rather than falling.
It is €0.03 away from its all-time low (€0.68, back in August 2026).
That €1.73 (€2.02 with fees) key is at its usual price: no bargain, no spike.
Worked out from 2,638 daily records of the Steam Key for Shift Quantum across 8 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
By format: Steam Key from €0.64 (€1.04 with fees) and Steam Gift from €5.85 (€6.14 with fees).
6 of the 7 offers work on US — the Global ones plus the ones issued for your own region.
Critics put it at 78 out of 100, though there are only 11 reviews published so far.
One listing is worth ignoring: the Steam key that Greenmangaming has at €19.99 (no fees) is more than 19 times the cheapest offer and is not what this game costs. The number to work from is €0.64 (€1.04 with fees) at Kinguin.
Although there may be plenty of options in this genre, Shift Quantum stands out with its polished look, unique concept, and a soundtrack though unremarkable,... Read more
Shift Quantum adds a new dimension to the action puzzle-platformer, with an element of mystery that makes it incredibly atmospheric. Read more
Shift Quantum makes clever use of its Shifting mechanic, truly testing your ability to analyse and break down each puzzle within its dark, dystopian world.... Read more
If you love puzzles, you should definitely give this title a spin. Read more
Shift Quantum might not feature the most original aesthetic and feels only half committed to its narrative elements but those are only small drawbacks to... Read more
Shift Quantum is an impressive and fresh experience among the strange coincidental influx of dual colour/polarity themed games assaulting Switch at this moment. Often crossing... Read more
Shift Quantum is a clever puzzle game that is very fun on PlayStation 4. The level design is great, and the core gameplay mechanic is... Read more
Shift Quantum is a fun puzzle platformer with a minimalist black and white look that works since it allows you to focus on the puzzles... Read more
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