A sandbox survival game, set on life-sized voxel planets with realistic physics with the possibility to shape your own building blocks. From your custom made furniture, walls to vehicle parts. You shape the blocks which can then be used to build buildings, spacecraft and aircraft.
All Reviews:
Mixed (23) - 47% of the 23 user reviews for this game are positive.
Release Date:
Aug 20, 2021

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Early Access is the perfect opportunity to develop the game WITH the community. Like so we want to assure the development goes in the right direction.

This game is very special to us and we want to make it special for you too. So we are thankful for anyone who brings ideas, suggestions and bug reports so we can make it a special experience to play.”

Approximately how long will this game be in Early Access?

“We want {Undefined} to be as good as possible and we want YOU to be fully satisfied with the game before we bring it out of Early Access. So YOU take a huge role in this decision!

We suppose the game will be in Early Access for about 2-3 years.”

How is the full version planned to differ from the Early Access version?

“In the full version we plan to have more planets, moons, refined and more systems, spacecraft, aircraft, vehicles, more survival elements, enemies and PVP Multiplayer. And of course it should not have any bugs ;)”

What is the current state of the Early Access version?

“At the moment there is:

  • Planet Earth (Fully volumetric)
  • Our Object Designer to shape blocks and components
  • Precise building system for buildings (no vehicles yet!)
  • Multiple Biomes
  • Climate Zones
  • Atmoshperic Simulation
  • Gravity Simulation
  • Thermodynamic Simulation (Heat)
  • Basic Survival Elements
  • Survival Mode
  • Creative Mode
  • Crafting
  • Multiplayer (Coop)

Will the game be priced differently during and after Early Access?

“The price will increase after the full launch of the game because we think it's a very complex game and a lot of effort is put into it.”

How are you planning on involving the Community in your development process?

“In order to contribute to the game you can do two things:

  • Report Bugs
  • Tell us your ideas and suggestions

To do that you can go to our website and klick "Report a bug"!

We also set up a discord server where we will interact with the community. The link to our discord can also be found on our website!

We appreciate every input we get! Every reported bug and every idea we read can make {Undefined} a better experience to play.”
Read more

Buy {Undefined}

See all discussions

Report bugs and leave feedback for this game on the discussion boards

About This Game


{Undefined} is currently in early access phase, which means not all content described below is already available from the beginning! Please take a look at our roadmap to keep track of our development and see what's already available in the game, what is not and what we are currently working on! You can find our roadmap on our website.

About {Undefined}

The idea for {Undefined} came, because conventional games provide you with premade building blocks which can then be used to build stuff. But premade blocks always bring limitations. So we created {Undefined} where we provide as little premade objects as possible!

{Undefined} is a sandbox survival game like no other, set on life-sized voxel planets with realistic physics with the possibility to shape your own building blocks. From your custom made furniture, walls, crafting stations to vehicle parts. You shape the blocks which can then be used to build buildings, spacecraft and aircraft. Endless possibilites with as little limitations as possible!

Survive, gather resources and start designing and building!

Feature List

  • Object Designer: Lets you design your own building blocks and functional blocks (e.g. walls, furniture, machines, rocket parts, etc...)
  • Planets and Moons: Fully destructible Voxel Planets (Drill them for ores or build underground bases), Nearly life-sized planets and moons, Various biomes, realistic atmosphere simulation, realistic gravity simulation, caves
  • Game Modes: Survival, Creative
  • Design Vehicles, Aircraft and Spacecraft: Our Object Designer also lets you build your own vehicle parts and therefor vehicles
  • Complex Systems and Simulations: Electricity, Logic Systems, Conveyor System, Thermodynamic Simulation (Heat simulation, heat distributes to other blocks), Oxygen and Gas System, Automation Systems
  • Farming
  • Singleplayer and Multiplayer
  • Utilizes Unreal Engine 4

Voxel Planets

Life-sized voxel planets with various biomes and climate zones. From high mountains to flat grasslands, from hot deserts to cold arctic environments, you have to survive and use the resources you have!

Shape your own components!

Unlike in conventional games, in {Undefined} you can shape your own building components! Shape and design your own walls, furniture, machines, vehicle components, statues... you name it! Our Object Designer allows you to carefully design anything you can imagine without any limitations. You can even design functional blocks like lamps and crafting stations!

Now use your designs!

Of course, after designing your own furniture or building components, you will have to use them! Build the house of your dreams, or spacecraft to fly into space and construct a spacestation up there. The only limit is your imagination!

System Requirements

    • Requires a 64-bit processor and operating system
    • OS *: Windows 7/8.1/10 64 Bit
    • Processor: Intel Core i5-2400/AMD FX-8320 or better
    • Memory: 4 GB RAM
    • Graphics: NVIDIA GTX 670 2GB or AMD Radeon HD 7870 2GB or better
    • DirectX: Version 11
    • Storage: 20 GB available space
    • Requires a 64-bit processor and operating system
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.

What Curators Say

9 Curators have reviewed this product. Click here to see them.

Customer reviews

Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Filter reviews by the user's playtime when the review was written:

No minimum to No maximum
Display As:
Show graph
Hide graph
Excluding Off-topic Review Activity
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...