My Big Sister
All offers (13)
Compare the platform, region and delivery before you buy.
Standard Edition 11 offers · EU & Global
My Big Sister Steam CD KeyActivation keySteamGlobalLowest price€0.30+ payment feeView deal
My Big Sister (PC) Steam Key GLOBALActivation keySteamGlobal€0.46+ fee possibleView deal
My Big Sister EN/DE/FR/PT/ES GlobalActivation keySteamGlobal€0.47+ service feeView deal
My Big Sister (Global) (PC) - Steam - Digital KeyActivation keySteamGlobal€0.60no Plus, no ProtectView deal- My Big Sister (PC) Steam Key EUROPEActivation keySteamEurope€0.69+ fee possibleView deal
- My Big Sister EU PC Steam CD KeyActivation keySteamEurope€0.96+ payment feeView deal
My Big Sister Steam Key GLOBALActivation keySteamGlobal€1.01+ service feeView deal- My Big Sister (Europe) (PC) - Steam - Digital KeyActivation keySteamEurope€1.12no Plus, no ProtectView deal
Remastered Edition 2 offers · EU & Global
Official store Steam · price for Germany
Steam store pageDirect purchaseSteamGermany€5.89No feeView on Steam
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Best price over the last 32 days
- Lowest €0.2311 Oct 2026
- Highest €0.3029 Oct 2026
- Today €0.30
The cheapest EU or Global key per day across all compared stores; the dashed line is the Steam price.
Trailer & screenshots
Buy My Big Sister key: current price comparison
Where is the My Big Sister key cheapest?
The cheapest My Big Sister key that activates in the EU currently costs €0.30 at Kinguin. Keyfinder compares 13 offers from 7 shops for this price. That is 95% less than the Steam price of €5.89. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.
What was the lowest My Big Sister key price in the last 32 days?
€0.23 on 11 Oct 2026, for the standard edition that activates in the EU. The highest daily low in that time was €0.30 on 29 Oct 2026; today the cheapest key costs €0.30.
Which My Big Sister keys activate in the EU?
13 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 My Big Sister 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 My Big Sister 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 My Big Sister
My name is Luzia...and this story isn't about me, it’s about my sister. Do you still wish to hear it?
- Developer
- Stranga Games
- Publisher
- GrabTheGames
- Release date
- 9 Nov 2018
- Steam
- View on Steam