A Quantum Witch 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 €2.08 (-58%) at Kinguin, 58% below the €4.99 Steam price · 3 verified stores, 3 offers in stock · Updated 05h 42min ago.
Quantum Witch for PC starts at €2.08 at Kinguin, a Steam key, which is 58% under the €4.99 it costs on the official store.
That €2.08 already includes the AUGGOC10 coupon, so apply it at checkout or the store will show you a higher price.
Supply is thin — 3 offers from 3 stores — and thin supply keeps prices steady rather than falling.
It is €0.09 away from its all-time low (€1.99, back in July 2026).
That €2.08 key is at one of its best prices.
Worked out from 436 daily records of the Steam Key for Quantum Witch across 2 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 €2.08 and Steam Gift from €5.01.
All 3 offers are Global, so the code redeems on any account no matter where it was created.
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