Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.
User reviews: Mixed (338 reviews) - 57% of the 338 user reviews for this game are positive.
Release Date: Feb 6, 2014

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Recommended By Curators

"A great space game that shows alot of promise for those wanting to jump down the rabbit hole. Take control and venture and become the famous captain!"
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Recent updates View all (49)

November 17

Horizon release version

November 17, 2015

* This minor patch fixes a very rare issue where fighters or planetary beam defenses could end-up with the wrong beam weapon when their designs are automatically updated.

* Links in the news feed section of the game launcher will once again work.

2 comments Read more

October 10

Horizon release version

October 10, 2015

* Races native to Barren/Volcanic and Metallic types will no longer be able to colonize Oceanic and Toxic planets without Terraforming or special abilities. Terran and Arctic planets are also much less hospitable to them than before (reduced Habitable area). This change will not affect games started in prior versions.

* Default Ship Design names can now be customized for each race.

* Improved some German text in Random Events and elsewhere (contributed by Xyquas)

2 comments Read more


“One to keep an eye on, definitely.”
70 – Strategy Informer

“Best of all, the way Horizon handles technological progress is one of the most elegant I've seen in a grand strategy game.”
65 – IGN

“With the excellent foundation that has already been developed and the dedication that L3O is showing to their fans, it promises to be a true 4X classic in its own right.”
90 – Aesthetic Magazine Toronto

About This Game

Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny.

You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets. You will also learn more about the galaxy as you come into contact with ten other species, each with their own unique culture, history and schemes.

A fully interactive galaxy allows you to navigate open space between stars and planets. Patrol your borders and, when the need arises, defend your territory by engaging in ship-to-ship tactical combat. Develop new colonies and then watch them become galactic centers for trade, industry and science - and of course military bases, outposts and shipyards to build your battle ships. Push your empire to its limits and go beyond the known horizon!

Key Features

  • Advanced turn-based tactical combat which many 4X fans have been requesting for years
  • Full Tactical ship control includes managing movement, weapons and more. Board other ships, attack from planetary and orbital defenses
  • A Distinct open world system, where ships can explore without artificial limits and where combat can span many turns before concluding
  • Interact with alien races of different levels, including ancient civilizations featuring their own unique storyline, schemes, ships and technology
  • An immersive galaxy storyline with open-ended missions that add another layer of gameplay over classic 4x mode which is also available
  • Engage in meaningful diplomacy choices that will impact the game outcome, includes coordinated actions with your allies against your enemies
  • Discover more than 80 technologies each with 10 levels of upgrades. Conduct planetary surveys and dig for artifacts
  • Design and customize your ships’ weapons and systems based on available technology
  • A detailed economy and colony management system with different types and levels of colonies based on your build choices
  • Play in different galaxy configurations from a few dozen stars to over a hundred star systems containing more than a thousand planets
  • Fully Customize your race or play as one of eight original races (NEW: Includes a mod that unlocks 3 additional ancient races now playable)
  • Extended Modding support with the ability to create your own races and even write your own scripted quests

System Requirements

    • OS:Windows XP SP3
    • Processor:Intel Core 2 Duo 1.8 GHz or AMD Athlon X2 64 2.0 GHz
    • Memory:2 GB RAM
    • Graphics:512 MB Video Card w/Pixel Shader 3.0 Support
    • DirectX®:9.0c
    • Hard Drive:5 GB HD space
    • Sound:DirectX 9.0c-compatible
    • OS:Windows 10 / 8.x / 7
    • Processor:Intel Core i3/i5/i7 or AMD equivalent
    • Memory:4 GB RAM
    • Graphics:1 GB ATI 4800 series or better, 1 GB NVIDIA 9800 or better
    • DirectX®:9.0c
    • Hard Drive:5 GB HD space
    • Sound:DirectX 9.0c-compatible
Helpful customer reviews
37 of 44 people (84%) found this review helpful
1 person found this review funny
95.9 hrs on record
Posted: August 14
This game is the small cousin of "Endless Space" and "Galatic Civilization II" and big brother of "weird world: return to infinite space".

For the first game from this diligient Indie Studio it's not bad but it's still got tons of room for improvemnt.

They have released a lot update to fix many of the issue they had when first launch but there are just a lot things that cannot be fixxed from patch.

1. Vidoe/Graphics are quite well done. Some of the alien planet video is just simply wonderfully beautiful. And i can tell the animator of this game really enjoyed their work and made jokes in some of the videos.

2. Music is a little subpar. But for indie game it can still be tolerated. Please improve this if you can for next game.

3. Gaming interface is quite linear and it doesn't feel 3D at all. It's a universe so it should look like one.
If you turn off the grid the universe interface just look like a mess but if you leave the grid on it doens't look good at all.

4. Tech is weird for this game too which you don't really get a tech tree. You reach base on % of you send in 6 types and you can focus on 1 specific tech one it become available. IT's just too much of a random chance. You need a Major Breakthough for a tech to show up and you need another Breakthough to start finnal getting advantage of it.

5. Race balance is really bad. This game is a colonization sim so if you can live in poison/metal planet from start you gain huge expansion advantage. Since tech research is based on random breakthough. If you play a race that's not native to bad enviromental planet you will have to cross your finger and hoping terreform research pop for you.

There is a guide here on steam that shows you exactly how you break the game using these none-balanced ability and with that guide. The game become super easy but without it. if you play regular human on those high difficulty you will have a lot of trouble.

The Achievements in this game is actually really simple and straight forward. But it does take you to play many games to grind them.
2 of those main story mission that will give you a normal ending.

7.5/10 and i do recommend this game for 4X lover. I raised the score from 6.5 to 7.5 because it's indie studio's first game but please improve and make better games.
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19 of 22 people (86%) found this review helpful
66.8 hrs on record
Posted: July 13
Horizon is an attempt to capture the Master of Orion (MOO) spirit and has a huge inspiration from it in many regards. Yet the game simplifies many aspects of its famous reference, sometimes for the better, sometimes sacrificing features which made its 21 and 18 years old elders become legend.

I can recommend this MOO-lite 4X game to people who are new to the genre as a very decent introduction, although seasoned 4X players (who have tried Imperium Galactica series, GalCiv series, Endless Space, Space Empires series to name a few) may find it pretty shallow and fielding little replayability at the end. Also its graphical style, general atmosphere and pretty easy to grasp gameplay are perfectly suitable for children (even overgrown ones) while still offering enough challenge at first.

Horizon suffers a lot from staying too close to the original MOO, even when MOO2 already had introduced simple yet enjoyable battle animations for ground combat. Nearly 20 years laters, the design choices are less limited by technology like they were at the time. While space combat has been drastically improved in mid and end game compared to the infinite fights of MOO2, the asynchronous turn-based game still suffers (like most 4X indeed) of a painful mid-game where AI turns may start to take round 5 minutes on bigger maps, and still requiring the player input at many stages of the process (which it stops until the player provides feedback). For this reason, I do not recommend playing on the largest galaxies like I did, enjoy several smaller and faster games instead, as the game mechanics also contribute to make the end game pretty painful (i.e. you can only capture/destroy 1 planet per system per turn - and actually destroying-recolonizing is slighty faster than invading several planets -, AI will spam colonizers and attack ships on any free/weak spot in you territory prolonging its own agony, and final diplomatic solutions like "make vassal or protectorate" are non-existent meaning should you go for the 4th X, then you really have to exterminate every last single planet - also note there is no "steam achievement" for succesfully ending the game like that, been there done that!).

On the other hand, many excellent features from the original "source" did not make it to this game, like - to name but one - infinite research (i.e. Miniaturization technologies) making it completely redundant at some point to have any research colonies. Talking about research, there as well the concept was very much simplified: nearly everything is available from start and you only get to pick the priority of one of the 6 fields and can put emphasis on one specifc technology in each of the fields as well.

Horizon brought some new things to the table though, with a quest system, which has you making some choices on how to deal with with each particular event and toward the greater goal of completion (although their is no "alignement" consequences for those choices, generally just economical ones). Also I was pleased with the survey mechanic, which makes you not only send scouts to systems and abracadabra it's uncovered but instead make you "explore" the planets one by one to discover potential bonuses (you can still colonize blindly if you like, something I like too). Introducing Command points also is a good call to limit the size of players armadas and force the player to make some ship and fleet design choices both in terms of tactical and strategical goals.

The digging feature is also an interesting idea, although it does not feel so much rewarding in its current state and could significantly be improved... which leads me to what follows.

One of the most positive things about Horizon though, it is the small team of developpers who cares about their product. 18 months after release (confirmed at the time of this review), they still patch it and add features. They read user feedback and even take time to respond to it, and that alone deserves the thumbs up.
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5 of 6 people (83%) found this review helpful
1 person found this review funny
67.6 hrs on record
Posted: July 24
This feels like the true sequel to the great Master of Orion 2.
You've got planets to conquer, build up and protect. You've got enemy races looking to drive you back to your home star system. You've got research and ships and random events.

What you don't have is captains for your ships / planets - that would have been a really nice touch.
The game is very stable, fast, built for 2 monitors without issues, I can play the game full screen on one and do something else on the second.

It's a lot faster than Moo2 because building up the planets is done in a different way and takes much less time.
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5 of 7 people (71%) found this review helpful
33.6 hrs on record
Posted: July 24
Pretty good 4X game. Although there may be another 4X game where you had to nominate yourself to be elected the supreme leader, I did not play (or remember) it. So I continually abstained from voting even after I had 30% of the votes. After wiping out the rival leaders that were nominated a couple time, I finally clicked on my image out of frustration and was instantly elected and won the game.
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2 of 4 people (50%) found this review helpful
6.9 hrs on record
Posted: July 19
If you want a really relaxed 4x game that isn't too involving and relatively easy to play, then this is a decent choice for you. The game runs reasonably smoothe, and it isn't too hard to pick up how to play.
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