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There is a problem with interplanetary civilizations: developing them takes more resources than a single planet can offer, and sometimes even a planetary system is not enough. Especially if you have competition.

In distant cosmos, two sister planets have reached a rather tense situation. The ancient greed, inherent to both civilizations, has driven them to most dramatic measures: the building of massive cannons, aimed directly at each other. Let the game of interplanetary artilleries begin!
Interplanetary is a turn-based strategy game for PC, Mac and Linux, featuring both single- and multiplayer modes. It is inspired by classics like DEFCON, Civilization series and old-school artillery games.

Your goal is to cause damage to the enemy's planet and to protect your own. Manage your planet's infrastructure using the limited natural resources and research new technologies to develop even mightier weapons and defenses.

At the end of each turn, there is a chance to shoot your interplanetary guns and try to hit major strategic points on the enemy's planet. Be precise, and you might manage to navigate your railgun slug around other planets and their gravity wells, straight into enemy cities!

Coming soon to Steam!

Check our official website and blog!
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Blog RSS Feed Report abuse Latest News: Interplanetary Released to Steam Early Access!

1 comment by Jeoo on Apr 18th, 2014

It's here! Interplanetary has now been released on Steam as an Early Access title. If you're ready for some interplanetary warfare, you can go get the game here: Store.steampowered.com

What a ride! We'd like to thank everyone who took part in the alpha code testing phase. Your feedback has been valuable and we hope you'll follow us onto the next step of Interplanetary's journey!

Since Interplanetary is in Early Access, we will keep developing it while you can play it, taking advantage of Steam's features. Don't forget to send us your critique, bug reports and ideas so we can keep making the game better and better.

You can still use our survey to report your experiences or simply go to theInterplanetary Discussion Board on Steam.

As a final note, don't forget to check out our Facebook and Twitter these days. We may have some additional surprises in store for you! You can also join us at QuakeNet #Interplanetary for matchmaking or casual chatting.

Thank you! Let's all have fun blasting each other to bits!

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Post comment Comments  (0 - 10 of 36)
enterusernamehere Mar 20 2014, 12:29pm says:

I posted a comment here and got a alpha key in a PM over a year ago, thing is i never knew PM's where a thing on desura XD. Only found out about the message today... oops. anyway before i found out about the message i was bored and looking through my bookmark tabs and found a link to this page buried away in there. after taking another look i'm impressed. nice to see it still being worked on and even green-lighted too. I've seen lots of cool larger scale games like this and usually after the first little while of development the game just kinda fades away but its great to see this alive and well.

+2 votes     reply to comment
Jeoo Mar 25 2014, 5:20am replied:

Hah, glad you found your way back here! Hope you're having fun with the alpha!

+1 vote     reply to comment
Krammy Mar 3 2014, 2:52pm says:

How will we colonize other planets if there are no spaceships? Teleportation? *Confused*

+1 vote     reply to comment
LordChibi Mar 5 2014, 3:53am replied:

The exploration of space is not completely absent from IP universe, it's just nowhere near as advanced as in most scifi universes. As in, no starfleets. We imagine the entry level to be what our technology might be in 50 years or so.

+1 vote     reply to comment
Gn0meSlice Jan 31 2014, 2:55pm says:

I was really happy when I saw this get greenlit, well done! One question though: will it be available through other, non-steam means as well?

+2 votes     reply to comment
Jeoo Feb 3 2014, 9:50am replied:

That's the plan, but we're starting with Steam first.

+1 vote     reply to comment
Chyro Jan 29 2014, 8:53am says:


+1 vote     reply to comment
vfabien21 Dec 7 2013, 4:10am says:

Hello, that game looks really interresting ! A question/suggestion : will there be slow but powerfull weapons that will survive a few turns, and thus can be intercepted ?

That could be fun.

+2 votes     reply to comment
Jeoo Dec 9 2013, 3:35am replied:


We did have weapons that behaved in that way in an earlier build. Wasn't quite as fun as it sounded, particularly since a shot that you've waited many turns to hit can end up easily destroyed. It was a little bit frustrating the way it was.

But it's not completely out of the table. With proper adjustments, it might work in the end, so we're considering it.

+2 votes     reply to comment
vfabien21 Dec 12 2013, 10:34am replied:

Hmm. Ok, I see.
The way I imagined it (for a similar game I had started programming years ago), is that it would work well if we were limited in the number of shots per turn, (missiles and counter measures) : synchronising 3 salves of shots that would hit in the same turn could add to each other and make it more difficult to defend against (more difficult to evade with short range counter measures, more penetration power on planetary shield, if any).

But of course, that would depend on the way you have designed the whole game.

+2 votes     reply to comment
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Released Apr 17, 2014
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Turn Based Strategy
Single & Multiplayer

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@sakotus Yeah, I suppose that will just teach the rest of the populace to work harder on those shield generators. Win-win, really.

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