OPUS: The Day We Found Earth
All offers (10)
Compare the platform, region and delivery before you buy.
Standard Edition 10 offers · EU & Global
OPUS: The Day We Found Earth EU PC Steam CD KeyActivation keySteamEuropeLowest price€4.99+ payment feeView deal
OPUS: The Day We Found Earth (PC) Steam Key EUROPEActivation keySteamEurope€5.67+ fee possibleView deal
OPUS: The Day We Found Earth Steam Key: Europe & UKActivation keySteamEurope€6.63View deal- OPUS: The Day We Found Earth Steam CD KeyActivation keySteamGlobal€14.99+ payment feeView deal
OPUS: The Day We Found Earth EN/DE/FR/JA/KO/ZH/ZH GlobalActivation keySteamGlobal€15.15+ service feeView deal- OPUS: The Day We Found Earth Steam Key: GlobalActivation keySteamGlobal€15.25View deal
- OPUS: The Day We Found Earth Steam Key GLOBALActivation keySteamGlobal€16.16+ fee possibleView deal
OPUS: The Day We Found Earth Steam Key GLOBALActivation keySteamGlobal€19.42+ service feeView deal- OPUS: The Day We Found Earth Steam Gift GLOBALSteam giftSteamGlobal€19.64+ service feeView deal
OPUS The Day We Found Earth (Global) (PC / Mac) - Steam - Digital KeyActivation keySteamGlobal€21.02no Plus, no ProtectView deal
Official store Steam · price for Germany
Steam store pageDirect purchaseSteamGermany€14.79No feeView on Steam
You buy directly from the store. "+ service fee" or "+ payment fee" means the store adds a fee at checkout; you see the final price there before you pay. We may earn a commission when you buy through our links.
Best price over the last 32 days
- Lowest €4.9911 Oct 2026
- Highest €4.9911 Oct 2026
- Today €4.99
The cheapest EU or Global key per day across all compared stores; the dashed line is the Steam price.
Trailer & screenshots
Buy OPUS: The Day We Found Earth key: current price comparison
Where is the OPUS: The Day We Found Earth key cheapest?
The cheapest OPUS: The Day We Found Earth key that activates in the EU currently costs €4.99 at Kinguin. Keyfinder compares 10 offers from 6 shops for this price. That is 66% less than the Steam price of €14.79. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.
What was the lowest OPUS: The Day We Found Earth key price in the last 32 days?
€4.99 on 11 Oct 2026, for the standard edition that activates in the EU. The highest daily low in that time was €4.99 on 11 Oct 2026; today the cheapest key costs €4.99.
Which OPUS: The Day We Found Earth keys activate in the EU?
10 offers are marked EU or Global and activate in Germany and the rest of the EU. Keys for other regions are listed separately. The keys on offer are for Steam.
How do I activate the OPUS: The Day We Found Earth key?
The cheapest key activates on Steam. You redeem it there with the code the shop sends you after you pay.
Is it safe to buy a OPUS: The Day We Found Earth key from Kinguin?
Before you pay, check three things on the offer: the region (EU or Global for Germany), the edition and any fee added at checkout. Keyfinder shows all three on every offer. Our Kinguin check covers who runs the shop, its fees and its regions.
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About OPUS: The Day We Found Earth
Dive into the boundless galaxy and embark on an emotional adventure! Help little robot Emeth to fulfill a century-old promise by finding Earth in order to save Mankind—so step into the spaceship, operate a deep space telescope, and find out what’s out there in the unknown.
- Developer
- SIGONO INC.
- Publisher
- SIGONO INC.
- Release date
- 22 Apr 2016
- Steam
- View on Steam