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.
User reviews:
Recent:
Mixed (12 reviews) - 66% of the 12 user reviews in the last 30 days are positive.
Overall:
Very Positive (627 reviews) - 83% of the 627 user reviews for this game are positive.
Release Date: May 12, 2015

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About This Game

Interplanetary is a turn-based strategy artillery game based on a hard scifi setting. It offers players an interplanetary battlefield where they can develop their home planets and use massive artilleries to wage war.

It's an arms race of interplanetary scale, with each planet developing increasingly powerful weapons. Massive railgun batteries are the backbone of any interplanetary arsenal, but the cunning use of missiles and precision lasers may hold the key to victory. Strategic building patterns, upgrades and defense structures might keep your vital installations standing long enough to give you an edge, but it's only a matter of time until all but one must fall.

Sometimes, your greatest foe is the planetary system itself! Don't let the unpredictable gravitational changes get the better of you - observe your surroundings, use them to your advantage, and blast your enemies back to the stone age!

Key Features

  • Challenge your friends in hotseat or online matches or fight skirmishes against the AI.
  • Build and manage your planet's infrastructure.
  • Gather resources and decide the most efficient use for them.
  • Research and develop increasingly futuristic technologies.
  • Spy on your enemies to reveal their planets' weak points.
  • Use your artillery constructions to aim across the planetary system, avoiding other celestial bodies and their gravity.
  • Fire your railguns, missiles and beam weapons to annihilate the enemy and claim the planetary system for your civilization!

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • OS: Windows 7
    • Processor: DualCore AMD/Intel 2.3 GHz
    • Memory: 4 GB RAM
    • Graphics: AMD Radeon 4850 / Nvidia 8800 GTS 512 Mb or equivalent
    • DirectX: Version 10
    • Storage: 1024 MB available space
    Recommended:
    • OS: Windows 7
    • Processor: QuadCore AMD/Intel 3.0 GHz
    • Memory: 4 GB RAM
    • Graphics: AMD Radeon 5850 / Nvidia 9800 GTX 1 GB or equivalent
    • DirectX: Version 10
    • Network: Broadband Internet connection
    • Storage: 1024 MB available space
    Minimum:
    • OS: Os X 10.xx
    • Processor: DualCore Intel 1.5 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel HD Graphics 5000
    • Storage: 1024 MB available space
    Recommended:
    • OS: Os X 10.xx
    • Processor: QuadCore Intel 3.0 GHz
    • Memory: 4 GB RAM
    • Graphics: Intel HD Graphics 5000
    • Network: Broadband Internet connection
    • Storage: 1024 MB available space
    Minimum:
    • OS: Ubuntu 13.xx
    • Processor: DualCore AMD/Intel 2.3 GHz
    • Memory: 4 GB RAM
    • Graphics: AMD Radeon 4850 / Nvidia 8800 GTS 512 Mb or equivalent
    • Storage: 1024 MB available space
    • Additional Notes: Linux users with AMD graphics cards may experience issues with game crashing at various points. This can be remedied by changing the graphics card drivers to a different version, including to the open source driver version. Please consult the forums for more information.
    Recommended:
    • OS: Ubuntu 13.xx
    • Processor: QuadCore AMD/Intel 3.0 GHz
    • Memory: 4 GB RAM
    • Graphics: AMD Radeon 5850 / Nvidia 9800 GTX 1 GB or equivalent
    • Network: Broadband Internet connection
    • Storage: 1024 MB available space
    • Additional Notes: Linux users with AMD graphics cards may experience issues with game crashing at various points. This can be remedied by changing the graphics card drivers to a different version, including to the open source driver version. Please consult the forums for more information.
Customer reviews
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Recent:
Mixed (12 reviews)
Overall:
Very Positive (627 reviews)
Recently Posted
Sorewne
( 5.7 hrs on record )
Posted: July 27
I bought this game for $14.99, and It looks like it won't run too well, like around 15 fps. Opens game to find out I get 90 fps. I think the recommended settings are exaggerated. Well I know to play this game, thanks to quill18. If you love science, planets, and war; Buy this! I recommend this to pretty much everyone!

List of things TO do:
Make Solar Plant
Make Mine
Don't fire until about turn 3 - 5.

List of things NOT TO do:
Make Rail Gun
Fire first turn
No Power anymore

Simple.
Helpful? Yes No Funny
Benkob
( 4.5 hrs on record )
Posted: July 27
Boring I can only assume that the designers have far too much time on their hands
Impressive graphics which have little to do with game plai and no way to speed them up.
Don't think I will both playing it again nor will I get anything from the same stable
Good idea poor execution
Helpful? Yes No Funny
svm_invictvs
( 11.2 hrs on record )
Posted: July 26
The game definitely takes some getting used to, but once you figure it out it's awesome. It's a unique spin on the traditional artillery shooter mechanics with a good blend of turn-based strategy.
Helpful? Yes No Funny
demotricus
( 3.1 hrs on record )
Posted: July 26
I enjoyed playing with this strategy game but I think it suffers from one very annoying flaw...

The Game focuses on the gravity fields surrounding planets in the (imaginary) solar system you are waging war in.
You fire projectiles across the solar system and plot your projectiles paths with the aid of a prediction line,
and this seems to be the games selling point. But...

Unfortunately you find that the most effective weapons are the lasers, - which are not affected by gravity....

This sort of kills the whole fun of plotting trajectories for projectiles or missiles as they become redundant fast.(If you have not built lasers too by researching the right technologies, then you`re going to lose as soon as your opponent does...).

I also found the predicted projectile paths very innacurate as many times I`d have set up several rail guns trajectories and used the targeting paths shown, only to see my shots miss by large margins. The general rule is that the further away the target is from you, the less accurate the prediction is.
Unfortunately the AI seems very accurate when firing back.

It`s quite hard playing against a single opponent in single player mode so can only imagine how fast I`d find myself being obliterated if I start a game with several AI opponents...

I DO like the game and think that in multiplayer, against human players this will be quite entertaining so I`m recommending it,
but kinda wish you could disable the use of lasers, as this would prolong games and enhance them.
Helpful? Yes No Funny
Tomato_Skins
( 3.9 hrs on record )
Posted: July 25
Entertaining for the first few hours; after that, you've, for the most part, figured everything out. The game does have some balancing issues, expecially in terms of weaponry; however, with some updates to address these issues and possibly by opening up modding to the steam workshop, I can easily see this game becoming much more popular in the future.
Helpful? Yes No Funny
chuttes
( 7.8 hrs on record )
Posted: July 24
It's not that the game isn't fun. It's just that the game isn't fun for long.
Helpful? Yes No Funny
jaker
( 17.5 hrs on record )
Posted: July 23
I like the complex, turn- based warfare style but the connection of a friend of mine is very unstable so we can hardly enjoy. After some turns his game crashes thus we cannot fight till the end or experiment with the advanced technology.

Jaker
Helpful? Yes No Funny
White
( 3.1 hrs on record )
Posted: July 22
It's a good game, quite basic but fun with interesting mechanics, not very challenging though.
Helpful? Yes No Funny
Aliandris
( 5.5 hrs on record )
Posted: July 22
Cool premise, but the execution was lacking.

It's the kind of game where everything seems interesting and cool at first, but by a couple of hours in you've figured everything out and you're just annoyed that none of the research technologies lets you account for planetary lead times.

Helpful? Yes No Funny
Chareon
( 4.9 hrs on record )
Posted: July 6
Not really that great. Lasers dominate in weaponry, so much better that it is silly to build anything else, and so many features are pointless due to poor balancing.
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
33 of 41 people (80%) found this review helpful
1 person found this review funny
Not Recommended
4.9 hrs on record
Posted: July 6
Not really that great. Lasers dominate in weaponry, so much better that it is silly to build anything else, and so many features are pointless due to poor balancing.
Was this review helpful? Yes No Funny
11 of 11 people (100%) found this review helpful
Not Recommended
5.5 hrs on record
Posted: July 22
Cool premise, but the execution was lacking.

It's the kind of game where everything seems interesting and cool at first, but by a couple of hours in you've figured everything out and you're just annoyed that none of the research technologies lets you account for planetary lead times.

Was this review helpful? Yes No Funny
8 of 8 people (100%) found this review helpful
Not Recommended
7.8 hrs on record
Posted: July 24
It's not that the game isn't fun. It's just that the game isn't fun for long.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
Recommended
11.2 hrs on record
Posted: July 26
The game definitely takes some getting used to, but once you figure it out it's awesome. It's a unique spin on the traditional artillery shooter mechanics with a good blend of turn-based strategy.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
Recommended
5.7 hrs on record
Posted: July 27
I bought this game for $14.99, and It looks like it won't run too well, like around 15 fps. Opens game to find out I get 90 fps. I think the recommended settings are exaggerated. Well I know to play this game, thanks to quill18. If you love science, planets, and war; Buy this! I recommend this to pretty much everyone!

List of things TO do:
Make Solar Plant
Make Mine
Don't fire until about turn 3 - 5.

List of things NOT TO do:
Make Rail Gun
Fire first turn
No Power anymore

Simple.
Was this review helpful? Yes No Funny
Most Helpful Reviews  Overall
112 of 116 people (97%) found this review helpful
5 people found this review funny
Recommended
14.5 hrs on record
Early Access Review
Posted: December 23, 2014
I bought Interplanetary on an impulse, because it was on sale and i wanted to play a new game with my friends.
I didn't expect much from it, but it turns out to be a really good game!

Even though it's an early release, the game is well balanced and looks and feels like a full release.
Have yet to encounter any serious issues (had a little lag in a single player game, but that is to be expected with those amounts of calculations).

Singleplayer is okay, the AI are a decent challenge. But where the game really excells, is in the multiplayer.
Play with at least three people and watch the chaos unfold. Pacts are made, truces broken and backs are stabbed.

The only recommendations i would make to the developers:
- Add more research; the skill tree is largely resource boosters. Perhaps some more unlockable buildings or weapons?
- Different difficulties for AI
- The ability to set teams before launching a game
- More variety in buildings would be nice too, and perhaps the option to upgrade/specialize a city

The points mentioned are not essential to have in this game! All of them would, however, make the game better (in my opinion).

Conclusion:

8/10, this game has a lot of potential!
Was this review helpful? Yes No Funny
116 of 125 people (93%) found this review helpful
4 people found this review funny
Recommended
179.0 hrs on record
Posted: May 13, 2015
I've been following this game since late 2013 when I got it, and since then it has turned out to be one of the best $5 I spent. Granted, that was on sale when it was in beta, so it's increased to 15, with a good sale going probably from 10-12, but the game is still a very good, if not an amazing buy.

Pros (As of May 13, 2015. Initial release):

+No issues with large lobbies anymore. Large lobbies are supported and quite awesome.

+Cool graphics. You can see every shot with very little FPS drop.

+From what my friends and I have tried and tested, the game seems decently balanced, from early rushes to late game turtle.

+Full, 26 piece tech tree that ensures that you can't simply rush in one direction without feeling the loss in other sectors. For example, if you singlemindedly rush lasers, you won't be able to build any defenses to counter the railguns that someone else built for half the cost and time.

+n-body physics on the main game map. Now I get it, a game about firing weapons through outer space better have a good physics engine, but this game is just awesome. Every massive (e.g. not weapons) body in the game exerts a force on projectiles, to the point where a gas giant that's behind your planet will mess up your firing arcs pointing in front of you. It can be frustrating, but its the best part and main attraction of the game.

+Non-instantaneous projectiles mean that you have to do some aiming at your target rather than just pointing your guns at them.

+Different level AI. Given that I haven't tried too many of them out, but still they offer training before you hit the scary players out there.

+Intuitive building mechanics. Everything makes sense pretty much instantly. You have two resources, balance them.

+Customizable lobbies. No more are games confined to 5 cities and 100000 minerals, but these are now modifiable for custom gaming. These, along with other things (like what weapons can be built, what size planets are, etc.), are nearly fully variable! This includes making games private so that only your friends can join.

+Turn timers. This was important, because people could sit in a game, raging, and never passing their turn. That would cause the game to stall out, but now with turn timers, that happens no more! Eat it, sore losers.

Neutrals:

Turn timer only goes up to three minutes, which isn't enough in the late game.

Music is very good, but it is on loop and there isn't too much variety (About 8ish minutes of it, I THINK), but you can mute it and play your own in the background.

One game has a length of anywhere from 30 minutes to 3 hours, depending on how slow the starts are and how long it takes to get lucky with damage distributions.

Cons:

-Has two decently sized bugs. One freezes the turn permanently if everyone in the game has passed except one. If that one person leaves the game instead of ending his turn, the game bugs out, sadly. The other is minor and easily fixable if you hit enough random buttons: the missile lock is funky. If you don't click on a target planet fast enough you screen looses its UI and you have to hit escape to go to the pause menu. When you come back, everything is fixed.

-Not a huge community. Before the game was fully released (i.e. beta) there was a very small community which could barely field a few pick-up games a day. Today there were lobbies open at all times though. Seems the release has breathed new life here.

-Game incorporates randomness in play affecting areas. Everyone's population and science increase at slightly different rates, meaning that you can never quite have the same opener/information on all players. On turn 10 of one game, a certain tech may be 1 turn research, where in another game it is 2 turns. Not huge, but for the hardcore people like myself, this can, in theory, hurt a few games in a hundred.

-Learning curve exists. While a pro to some people due to it's depth and skill based gaming, this means that you WILL lose your first game against random players. Hopefully you will be talking in chat the whole way with more experienced players who can teach you the ropes, but maybe not.

-Slight runaway leader scenario. The player with the better economy on turn ten will also have a better econ on turn 20, and 30 and 40... If you try and build a ton of railguns or lasers to hit the guy who is shooting you every turn with 10+, you are going to lose the war. If you try and fight fire with fire, you are going to get burned. Sadly, this is the most intuitive way to go about playing, and some people might call certain strategies unbalanced as a result.

-+-
All in all, if you like not-casual-but-not-super-competitive games about space, and/or artillery, and/or resource management, then this game could be for you. It certainly was for me. It is 100% worth the $11.99 on sale, and it's almost surely worth the $15 normal price. It's been a fun 80 hours, and I put in about 8 a week.
(Buy this game.)
(Do it.)
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76 of 98 people (78%) found this review helpful
5 people found this review funny
Recommended
5.9 hrs on record
Pre-Release Review
Posted: March 30, 2015
***This review was written using a Press key provided by the Developer for review purposes***

Interplanetary is a turn-based strategy game set in Space that is currently available through Steam Early Access. In Interplanetary you wage war against AI or human players across an entire solar system which is randomly generated each time you play so you'll never play the same game twice.

A word of warning, if you want this game purely for a singleplayer experience I'd suggest holding out on it but if you're looking for a great multiplayer strategy experience you have found it.

+The graphics are quite nice and even when you zoom in very close to the planets they look great
+Nice visual effects when enemy planets or your own planet gets hit by enemy fire
+The game has fantastic projectile physics but I'll come back to physics later
+Thanks to the turn-based nature of the game you can really take your time with choosing what to build and where to attack to maximise your power
+Despite the tutorial being several intimidating pages of text explaining core mechanics this game is relatively simple to understand and once you have a basic understanding of it you'll quickly improve and figure out how everything works
+Buildings can be upgraded to improve them in a way which suits the building, for example extra damage for railguns, and each building can only have two upgrades which prevents AI and players alike from developing overpowered buildings
+The resource management is very simple in Interplanetary and there are only two resources in the game so you often have to make simple but difficult decisions regarding what to build next
+Trying to figure out the right trajectory for your attacks is incredibly challenging but also a whole load of fun though I did feel that it was too difficult at times especially when firing across the solar system with other planets in your way as the game gives you no indication of their speed so you have to guess where they'll be to avoid entering their gravitational fields
+Even at this relatively early stage in development the tech tree is already quite good and it contains boosts to material, power etc. as well as the expected unlockable buildings
+Even just loading up an empty game and shooting at nearby planets is fun
+Good variety of weapons
+The game's calculations take place impressively quickly

-AI are overpowered and have no levels of difficulty. In my time playing this against AI I never once saw them miss a shot and as far as I can tell they also build much faster than you can, as I was struggling to build a second weapon I was already being bombarded by three weapons
-Of course it is in Early Access and allowances should be made but it isn't overly realistic. First off not all of the planets orbit in the same direction. Secondly, and this is me perhaps being a little too critical, the type of planets you'll find in a solar system often don't match what should be found where they are orbiting, for example Earth-like planets orbiting very close to suns and barren Mars-like planets in outer orbits towards the edge of the solar system
-There aren't many people playing this game so if you don't have friends who own it or you can't play local multiplayer you might struggle to find any matches
-The defensive buildings in the game are almost entirely useless, particularly against AI
-You can't save your progress

Worth a mention:
-The predicted paths that the game provides when you are choosing trajectories become entirely incorrect as soon as your weapon fires

Verdict:
8

Despite the lack of a good AI this game is a fantastic strategy game and can be enjoyed in more than just the usual ways, I'd strongly recommend getting this to play with friends.

El K.
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49 of 57 people (86%) found this review helpful
16 people found this review funny
Recommended
4.5 hrs on record
Early Access Review
Posted: December 13, 2014
Do not buy this game if you want to play it alone... You will... get your self destroyed. The AI cheats, they hit you with a 99.5% accuracy and hit your cities and buildings every time.

Instead, play it with people, it is a very fun game.
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42 of 52 people (81%) found this review helpful
6 people found this review funny
Recommended
10.0 hrs on record
Posted: September 27, 2015
War. War never changes.

Strap in and put on your helmet, soldier, 'cause Irreverend Opinions is taking a shot at Interplanetary!

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The Blurb

Interplanetary is a three-dimensional artillery tactical game of war between planets. Players (or AI) control a planet, directing research and construction, and then aiming various cannons, missiles, lasers, and superweapons at their opposing cities and infrastructure, having to work around the gravitational pull and orbital drift of their opponents.

The Good

The simplicity that Interplanetary depicts their controls cannot be overstated. The various screens give you access to all that you need at that level; construction shows you what you can build (and whether you can afford it), weapons show you 'targeting lines' to display what the expected shot path is, according to gravity and such.

No number-crunching beyond "do I have enough power to shoot this laser" is needed, and even then, graphical displays demonstrate things for you.

For a Unity-based game, the physics engine incorporated by Interplanetary is robust and bug-free. Kinetic shots follow paths dictated by velocity and planetary mass, meaning you have to factor these into the shot like a space-age game of 8-ball.

Intelligencia is a factor in the game, expressed as simplified "intel" and "counterintel" pointers that require their own individual building types to generate. Simply enough, higher intel than enemy counterintel means you can see their buildings and cities, and you cannot see their constructions if they have higher counterintel than your intel.

The tech tree is likewise streamlined, giving some small room for options in early to middle game, focusing on kinetic weapons (railguns with biological weapon warheads, for example) or lasers, etc.

Multiplayer is both easy to set up (hotseat/internet) and fun.

The Bad

Late game tech is homogenous, meaning that choices break down in importance fairly soon. It's possible to research everything in the tree, with no exclusive tech lockouts or cultural 'themes'.

Intel/counterintel generates quickly, making the midgame as much of a 'cookie cutter' scenario for tech development and building. Doing otherwise leaves you defenseless to precision strikes, or firing blindly at a planet in the hopes of breaking something important.

By that same problem, given that midgame tech development must be followed in certain patterns, early game requires specific development and tech, eliminating much of the 'individuality' allowed.

The Ugly

Not really anything, though Interplanetary does not apparently function on Windows 10 systems.

Suggestions

Players are encouraged to stagger weapons tech development with intelligence and defensive tech capacities, and largely ignore utility techs until lategame. The same requirement largely exists in construction; weapons, (counter-)intel, and then spamming utility in order to fund construction of your superweapons. Once you have enough weapons to survive, simply focus on intelligence. If you focus hard on counterintelligence, the AI will largely ignore you entirely, meaning that in VS AI matches, you can largely skip defensive techs until later in the game as well.

For developers; the recommendation is to make the tech tree one of individual flavor, rather than railroad paths. Spread some of the various tech benefits (city growth, chosen weapon potency, energy generation, etc) through each 'branch', and then focus the 'branch' on a particular playstyle (widespread bombardment, precision strikes). Slow science generation enough that choices are meaningful, and the "science victory" achievement is actually one that takes effort to receive. Perhaps some effects in the kinetics tree to show variation expected thanks to gravity and orbit (cone trajectory, rather than a line).

The Summary

Definitely playable, Interplanetary is a fun artillery game for players who don't want to micromanage or focus on number crunching. 7/10.

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