Alien Horizon (Preview Alpha)

**A surprisingly deep colony builder that quietly steals your time** I downloaded Alien Horizon expecting a rough little free alpha… and somehow ended up sinking way more hours into it than I planned. The core idea is simple: humanity escapes a dying Earth and lands on a planet that turns out to be way more hostile than expected. From there, it’s all on you to turn a single sleeper ship into a fully functioning colony. Sounds familiar — but the execution is where this game really stands out. What impressed me most is the depth. This isn’t a “place a few buildings and chill” kind of city builder. You’re juggling complex production chains, managing dozens of resources, and trying to keep your colonists alive, happy, and actually productive. Every decision matters, and mistakes can come back to haunt you hours later in the best (and sometimes worst) way. There’s also a strong sense of progression. You start off barely surviving, scraping together energy and basic needs, and slowly evolve into something that actually resembles a self-sustaining colony. Getting to that point feels earned, not handed to you. The game doesn’t hold your hand much, which might be rough at first — the UI and systems can feel a bit overwhelming early on — but once it clicks, it becomes incredibly satisfying. It’s the kind of game where you mess up, restart, and come back smarter. Another thing worth mentioning: the scale. Managing transport, infrastructure, laws, and individual colonists (who all feel like actual simulated people) adds a layer of realism that keeps things engaging. And the fact that this is a free preview alpha? Honestly kind of wild considering how much content and depth is already here. It’s not perfect — it’s still in development, and you’ll notice some rough edges — but there’s a clear passion behind it, and the foundation is seriously strong. I hope this review has been helpful.

oxygen and water is very important apparently... who knew?!... anyhow you can build your own colony, and then watch your colonists survive or not

Beautifully made game for just a preview alpha, 10/10 would recommend, I'm just hopeful for the future of this game.

It' super fun! I'm so thankful for being for free :) I hope this game updates often. :D

I inquired a while back on UI support for ultra-wide monitors. If the UI was able to be scaled to be visible this game would be playable on UW monitors. the negative response I got for this from the Dev was kind of startling and I am now seeing more and more people having this issue. If you have ultra-wide monitors as your main monitor I would recommend not picking this up until the Dev changes their stance on it.

This game is cool but there is ABso;utly no way to tell whats going on or what you need it will tell you people are dying of dehydration but your water and air and everything are all green but people are still just dying i want to like this game but DAMN its doesnt explains Anything but still has a LOT of words

Please play this game now It's for free And it's GREAT!. 5 stars out of 5 stars

Very awesome small storage/high ram usage game. Very detailed tech tree and city building experience. 500+ hours in game and still havent finished the tech tree. Buggy for sure, but discord server is very helpful. Creator of game even available for help there. Full rewrite of game in the works and set for release next year.