Interplanetary
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About Interplanetary
Interplanetary is a turn-based strategy artillery game set in a hard science-fiction setting. You develop your home planet and build weapons to fight across an interplanetary battlefield, in an arms race where each planet pursues increasingly powerful technology. The conflict continues until only one planet remains.
Develop your planet
Build and manage your planet’s infrastructure, gather resources and decide how to use them efficiently. Research technologies, upgrade your installations and use strategic building patterns and defensive structures to protect vital sites. You can also spy on enemy planets to reveal their weak points.
Aim across the system
Construct artillery and aim at enemies across the planetary system, accounting for other celestial bodies and unpredictable changes in gravity. Railgun batteries form the backbone of an arsenal, while missiles and precision lasers offer other ways to attack. Fire railguns, missiles and beam weapons to destroy enemy forces and claim the system for your civilization.
Game modes
Play hotseat or online matches against friends, or fight skirmishes against the AI.
Frequently asked questions
The best price for Interplanetary is $0.96 at Wyrel. 7 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Interplanetary stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Interplanetary are: Windows 7, Radeon 4850, 4 GB RAM, 1 GB storage. It also runs on macOS. The recommended specs are in the System requirements section.
Yes. Interplanetary has multiplayer and a single-player mode. Players on different platforms can play together.
Mostly, yes. Valve rates Interplanetary as Playable on the Steam Deck: it runs, but may need some manual setup.
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