
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
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About
Archean is a deeply immersive Engineering Sandbox.
Begin your journey on primordial Earth, over 3 billion years ago, in the Archean eon—a time when the world was raw, untamed, and full of potential.
Craft, experiment, and engineer your own creations—solo or with friends—in a sandbox that doesn't hold your hand. Every system is simulated, every challenge earned.
And when you're ready to go beyond?
This is also a full-scale space sim, with realistic physics and orbital mechanics.

Engineering / build sandbox
Resource gathering and crafting
Solo or Multiplayer with dedicated servers
Open World with full size Earth and Moon
Space Sim with orbital mechanics
Aerodynamics and Buoyancy simulation
In-game coding with the XenonCode language
Built-in Modding System
Workshop integration
Creative and Adventure modes
Fully ray-traced graphics
Pressurization system
Nuclear fission
Vehicle destruction and PVP
Survival mode
Full scale solar system (with all the planets and moons)
Weather system
LOTS more content
This game (and custom engine) is developed by a single programmer in a small team of two.
We offer a very advanced, high precision build and engineering system with small resizable blocks from 25 cm to 4 meters.
In this game, you have to connect components with actual cables/pipes for power, data and fluids.
Build in-game live in an immersive way, not in an editor.
Code your own logic in virtual computers, using pure code or a node-based visual programming system.
Make bases, rovers, trucks, planes, rockets, boats, submarines, zeppelins...

We have developed a new programming language designed to be easy to learn and optimal for in-game virtual computers.
The game has a built-in cooperative editor with syntax highlighting and multi-cursor support, as well as a node-based visual editor to facilitate scripting.


In this mode, you begin with nothing in your backpack. You have to gather resources and craft everything you need.
You start by hand, picking up rocks, build mining rigs, build automated machines and so on.
Some resources are underwater, some are at the highest mountain peaks.
It's up to you to build vehicles that can get there.
The ultimate goal is to reach the Moon.
Our innovative renderer is fully ray-traced with a great performance.
This is not a eye-candy, it's actually a necessary feature for this game to even exist, because of its dynamic nature.
Since the content will be mostly user-created and it's set to be moddable out-of-the-box, we cannot afford any artist-driven baked lighting, and with the full scale aspects with customizable solar system, we need the sun(s) lighting to be completely dynamic based on the real-time scenario, instead of tweaking shadow maps and reflection probes manually like other games do.
The entire scene is rendered in a single ray-tracing pass with many recursive light bounces.
This allows for realistic hard shadows, perfectly reflective mirrors and physically correct refractions.
Just make sure you have an NVIDIA RTX or AMD Radeon RDNA2+ graphics card and you're good to go.

The game is set 3 billion years in the past.
The Earth is rotating faster, making for 12-hour days instead of our familiar 24.
The sun is a bit dimmer and the moon orbits a lot closer to earth and is geosynchronous.
The continents are mostly grouped together on one side and there is a super volcano.
There is also no oxygen, the atmosphere is mostly CO2, and it's quite hot on the surface.
Life is barely starting to take place on Earth.
The game takes a realistic approach to time, there is no time warp and no pause.
This is because we have a focus on multiplayer and the planets are actually rotating and revolving around the sun.
Two players would not be able to interact realistically with each other if their times were to run at different rates.

The entire surface of the Earth (and the moon) is procedurally generated, at full scale, down to 1mm precision.
The world is quite empty at the moment though.

Since the Earth's surface is mostly water, we have to handle underwater environments.
Being fully ray-traced we can simulate refraction and reflections realistically.
The game simulates buoyancy, so you can build boats and submarines.

The final goal of this game is to be a Full Scale Space Sim with the entire solar system.
At the moment we have the Earth and the Moon, Orbital Mechanics and Re-Entry effects based on velocity.
There is no artificial speed limit, so you can actually orbit realistically at 8 km/s.
You can also dock with your friend's ship while in orbit, if you're good.

We have great plans for this game, and we swear by our 5 commandments:
It's NOT arcade-style and we do not underestimate our players.
You must understand science or be willing to learn some physics.
The game features realistic 6-dof space physics without any artificial speed limit.
As far as we know, it's the only multiplayer space sim where you can dock with your friend's space station while in space at Full Orbital Velocity.
This game is NOT meant to be a dogfight-style space shooter because that would not be practical with realistic physics.
Seamless transitions, no loading screens, EVER!
From ground to orbit to another planet... it's all seamless.
The game also happens to "load" pretty much instantly... For reference, in our Quadcopter video, the recording started BEFORE the game's executable was launched.
No fake boundaries. No skyboxes. No predefined paths.
IT's a true Open World game, and it's all full scale.
If you see a mountain, it's not a texture... You can just walk there and climb it if you have the courage... But I would just build a Rover or some kind of aircraft to get there faster.
The moon that you see from the surface of Earth is the actual moon's terrain that you will land on, if you manage to build a good enough rocket, that is.
The stars you see are individually rendered points in 3D space. It's not a skybox. But let's be honest you won't ever be able to reach another star.
Immersive, first person controls and no cutscenes.
There will NEVER be a point where the player loses control of their avatar to a cutscene or to some long animation.
This game will keep a focus on First Person Immersion.
Even though there is a 3rd person view available, it's mostly for taking screenshots, the game is not meant to be played this way.
Everything has a realistic purpose based on science.
Nothing should be fake, and in-game technologies must be at least plausible with some math behind it.
This means that there is no such thing as magical artificial gravity.
There are only two ways to have gravity in your spaceship when you're in space:
Constant Acceleration: Players inside an accelerating ship do feel gravity realistically, and there is no artificial sublight speed limit as opposed to most (if not all) other multiplayer space sims.
Centrifugal Forces: Yes you can also build a rotating station and you will have realistic "gravity" sensation like you would expect.
Also, there will be no Faster Than Light space travel.
The math for a plausible Warp Drive would not allow that, but will let you multiply your acceleration quite a bit, in a way that you can travel up to 99% the speed of light.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Engagement
Reviews
Themes across 41 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Pro: - the 5 commandments of the developers are awesome! - multiplayer - realistic orbit physics - probably the best real time building engine for crafts! - many good ideas and nice details - the developers talk with the community Con: - the aerodynamic engine is crap - very small development team, updates are small and slow Why can I not recommend it because of just these both points? You start on a planet with atmosphere and sooner or later you will build a plane. It is easy to get a craft flying, but it is not even close to realistic physics and in hard contrast to the first commandment of the developers. ("You shall obey physics") Instead of trying to make an approximation to improve the engine a bit, they recommend in their tutorials to build ailerons inside the wings of your plane to improve lift. *Ailerons inside the wings to improve lift* that's what they call "you shall obey physics" The small team is not able to concern this or many other good suggestions of the community, even their own roadmap is too much for this team, so this game will stay in Alpha for ever and it will never become the game, what it should. I really like to support small studios without any greedy publisher, but it is not realistic to get the work for that project done. Not in the next 10 - 20 years.
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Languages: English, French, Italian, German, Spanish - Spain
Hours played at review time, across 41 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
[b] A Must-Play for Engineering Game Enthusiasts [/b] Archean brilliantly combines the best elements of Space Engineers, Stationeers, and Stormworks into something truly special. The engineering-focused gameplay is challenging in all the right ways, featuring a highly detailed physics simulation and seamless integration with Xenoncode, the in-game programming language. Don't let that intimidate you though - if coding isn't your thing, there's also an excellent node-based visual programming alternative. If you love games that make you think and test your problem-solving abilities, Archean will absolutely hook you. Visually, the game is stunning. Ray-tracing brings the world to life, and performance has been excellent on my AMD 9070XT. I've noticed a couple of minor graphical artifacts due to AMD driver quirks and the game's NVIDIA optimization focus, but nothing that impacts gameplay. The barren landscape is an intentional design choice that reinforces the survival atmosphere, though the developers have hinted this may evolve over time. I've been impressed by the stability - no major bugs, crashes, or performance problems in my experience. The game runs smoothly and feels polished despite being developed by a very small, passionate team. Speaking of the developers, they're incredibly dedicated and highly active on Discord. While content updates come slower than AAA titles (understandable given the team size), they're released regularly and consistently improve the game. And if you can't wait, the Public Experimental branch gets you early access to new features before they're released in the stable branch. The highly anticipated Survival/Destruction Update is slated for 2026 and promises to add substantial depth. The modding community is thriving thanks to recent enhancements that significantly expanded modding capabilities. And an upcoming SDK will take modding to the next level. My only real criticism is the current content depth and development pace compared to larger studio games. However, even in its present state, I've found Archean immensely enjoyable, and there's still plenty of existing content I haven't played with yet. [b] Bottom line [/b]: If you've enjoyed Space Engineers, Stationeers, or Stormworks, you owe it to yourself to at least try Archean's free demo. This game deserves a spot in every engineering game fan's library.
This game gives you full freedom to create whatever you want, it's a bit of a learning curve even for a programmer if you want to build your own complex stuff, but if you don't want to do any coding, there is a lot of blueprints available on the workshop. There is also something special about the graphics, even though the world is quite empty for now and there are no clouds or weather effects, it already looks amazing. Apparently the ultimate goal is to reach moon, I am 120 hours in now and only just starting to think about going to the moon. I really hope the devs will never give up, because with everything that they have on the roadmap, I can already see myself playing this game for thousands of hours :D
Probably one of the best engineering games with realistic aerodynamic physics / orbital mechanics. It feels very rewarding when you build something complex, like a working space plane for example, because you have to program every aspect of its functionality. Would highly recommend to anyone who enjoys programming and challenging engineering.
What starbase should have felt like
Buran flies
I had tried the demo awhile back, and I had felt not very interested, fast forward a few months, and I decided to try it again, but was intimidated by some of the reviews, wondering if being novice at coding would make the game unplayable for me, and some of the reviews mentioning complexity. I went through tutorial on the demo, and started to realize the depth, and considering the price on sale, I bought it, and have already gotten my money's worth after only a couple of hours. I want to advance my coding knowledge, and this looks like a great way! Coding only enhances the gameplay, in my opinion, and am very impressed with it so far! It reminds me of stormworks, but much better! I am not really a hardcore sandbox person, but spawning on a planet with nothing, and seeing the moon, suddenly game me tons of hours of ideas.
good game. 10/10 on the autism meter. However, the learning curve is more like a cliff at some points. The nodes are quite lacking as well as xenon code. However, the wiki is a great utility for anyone who wants to get into this game. Devs are also amazing at what they do, and listen to community feedback regularly. It has a very good potential in becoming amazing. Overall satisfying game for those who love engineering and tinkering.
might be the best and only game of its kind i've ever played. please take my money
This game is so good if you like programming and/or building, definite buy
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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