Interplanetary
All offers (5)
Compare the platform, region and delivery before you buy.
Standard Edition 4 offers · EU & Global
Interplanetary Steam CD KeyActivation keySteamGlobalLowest price€1.32+ payment feeView deal
Interplanetary (Global) (PC / Mac / Linux) - Steam - Digital KeyActivation keySteamGlobal€1.52no Plus, no ProtectView deal
Interplanetary Steam Key GLOBALActivation keySteamGlobal€1.93+ service feeView deal- Interplanetary (Europe) (PC / Mac / Linux) - Steam - Digital KeyActivation keySteamEurope€4.89no Plus, no ProtectView deal
Enhanced Edition 1 offer · EU & Global
- Interplanetary: Enhanced Edition Steam Key GLOBALActivation keySteamGlobal€1.30+ service feeView deal
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Best price over the last 32 days
- Lowest €1.2928 Oct 2026
- Highest €1.3211 Oct 2026
- Today €1.32
The cheapest EU or Global key per day across all compared stores.
Trailer & screenshots
Buy Interplanetary key: current price comparison
Where is the Interplanetary key cheapest?
The cheapest Interplanetary key that activates in the EU currently costs €1.32 at Kinguin. Keyfinder compares 5 offers from 3 shops for this price. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.
What was the lowest Interplanetary key price in the last 32 days?
€1.29 on 28 Oct 2026, for the standard edition that activates in the EU. The highest daily low in that time was €1.32 on 11 Oct 2026; today the cheapest key costs €1.32.
Which Interplanetary keys activate in the EU?
5 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 Interplanetary 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 Interplanetary 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 Interplanetary
In this turn-based strategy game, players wage interplanetary wars by developing their home planets and firing massive artilleries through the unpredictable gravity fields of the planetary system.
- Developer
- Team Jolly Roger
- Publisher
- Team17 Digital Ltd
- Release date
- 12 May 2015
- Steam
- View on Steam