A downloadable game for Windows, macOS, and Linux

Very early prototype of a base-building game by Free Lives

Congratulations! You have been chosen to start a new life on Proxima Centauri B. You will construct and manage a new resource extraction outpost under the gracious supervision of the Human Mothership. Productive service guarantees citizenship! 

You will have to expand your economy and fortify your defences if you are to survive the huge numbers of the alien swarm. We wish you luck and productivity!


Join the Free Lives Discord


Second Earth Windows a5 324 MB
Second Earth OSX a5 (Untested) 327 MB
Second Earth Linux a5 (Untested) 333 MB

Development log


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system requirments i have DX 10

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I think the game would still run, but might get extremely slow. It makes use of GPU instancing to get so many things on screen, which to my knowledge is only available on DX11, Metal, Vulkan and other newer APIs.


A Endless Mode would be nice!

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If you are playing on the alpha 5 version, here are some cheat codes:

[Tab] - Unlock "gode" Mode

[Shift] + G = Get Ore

[Shift] + P = Auto next wave

Love the game! Share any other admin shizz you find.

With Respect,



A couple you've missed:

[Shift] + E = Spawn enemies

[Shift] + F12 = Hide UI

[Shift] + U = Unlock levels (not sure if this one still works?)

[F3/F4] = Speedup time

Thank you. I am noob compared to you.

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how do I install the unity.dll?

You don't need to install it. After you unzip the file you should be able to run the .exe file (and the game will just run, no installation required)

it give me the error the code execution cannot proceed because unityplayer.dll was not found reinstalling the program may fix this problem

Did you unzip all of the contents of the zip file into the same place, and then run the .exe?

it is one of my new favorite games :)


Please release this game on EA immediately on Steam.

now im really struggling to get my foot on new build. its just like a new game for me :)

I think we'll be changing a few things in the next update, maybe even removing a couple things added last. I think we can improve a lot on the current experience.

I finished all of them now :) except for against all odd

Finally a sci fi game that isnt on ALPHA centauri. Proxima was better anyways.

i keep on telling myself to try this game and i keep forgetting but now i am!

Please add 3440x1440 support

Second Earth - Early Access Review

I'd like to confirm that the Linux a5 works fine. Finished first map, looking forward to more! Thanks for this game!

btw I can still click on the levels but I can't see what I am clicking but when I enter the world everything is clear and I can see but on the main menu is all white in Mac

OH. That narrows things down, thanks! I'll take a look when I get to work tomorrow. Do you mind joining our Discord and sending me a message, so that I can send you a Mac build and see if the menu is fixed?

btw devs did you fix the white problem for MacBooks

Just wanted to say thanks, your game has brought so many such good times. I am kinda addicted and I can't wait to see the next installment.


I just get an file when I download it. what do I have to do now?

Is it a ".zip" file?

If it is a zip file and it is the correct file for your platform (Windows/MacOSX/Linux) then you should be able to extract it and run the .exe file within the extracted folder.

Hi a question for the devs: Are you planning to release an integrated Map Editor or external Map Editor? Would be awesome, since I see there a huge community potential. ^-^ 

We haven't discussed a map editor yet. We do have some internal tools that help with making maps a much easier task, but I imagine we'd still have to do quite a bit of work packaging that into something that saves and loads at runtime, rather than in the Unity editor, and giving it a usable UI. I'm sure we'll chat about it when we're all back together!

I am no professional, but maybe you can serialize a class with a save pattern for each entity (In this case buildings and streets as simplest) and then you could save the object into binarys... ( using System.Runtime.Serialization.Formatters.Binary; )

    class SaveEntitys{Entity[] ListOfEntitys [...]} [Serializable]
    class Entity{public Entity(obj object, Vector2 position, obj content)} 

Sounded like you haven't thought about it that much, maybe this is a way to go? :3 Maybe you have even already other structures, which leads into the problem, that this "path" of saving won't work... ^-^

A full version of this game would absolutely include a map editor though. 

Any updates for this amazing game? The final challenge has become too easy :/ 

Robbie and Evan are travelling for the next couple of weeks, so updates will be slow until then, especially in terms of gameplay content. I've been working on some optimization and art, but it's not necessarily enough to warrant another update until they're back. I'm happy you've been enjoying it though! :D

i cant download it

it said intergrity fail

Which platform are you trying to download it for? I've been able to download and unzip them all successfully. :/

how can i dowload it 

Are you not able to click the download links at the bottom of the game post?

on my new MacBook when I opened the game it  turned all White except for the bottom left corner 

Oh dear! Thanks for letting us know! We don't develop on Macs, so it's hard for us to test on that platform, but we'll figure something out!

hi, how does one rotate a building?

Rotating buildings currently isn't possible. (Afaik it was intentional, because it leads to having to plan road networks better, but it's not intuitive and we're open to changing that.)

When I open the game on my MacBook 2018 the screen just go all white...

wanted to give this  a try but download says cant find anything to download

same for me

Which platform do you want to play it on? I can give you a Dropbox link if the download links aren't appearing on Itch.

This should be fixed now. Sorry!

This should be fixed now! Really sorry!


Super glad you had fun! Was worried that you'd lose that second level, but you just made it!

Thanks so much

What are the minimum requirements for this game? I have a computer from late 2009.

The game is a bit of a beast in terms of CPU requirements and GPU requirements. Second Earth won't work without a Direct X 11 graphics card, because we rely on Mesh Instancing on the GPU to render so many bugs.


I figured I would ask.

You guys should make an optimised version, the same game, just not as high graphics.

This game looks great! Keep up the good work.

I cant get passed lvl 2 the 2nd hored of aliens just demolished my wall and all my towers help  me pls

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Oh No!!!

The lesson lvl 2 is trying to teach is that you should build lots and lots of solar panels. You can beat the level pretty much just building the free towers and then 100% solar panels.


I like the game so far, looking forward to future updates :)

Hello, I would like to ask you how you are doing such good games. I'm learning unity and c# but I don't know if it's the best way to start it.

I wanted to message you but I didn't find out.

Your work is so cool!

i like my profile ;) don't check it out...

i also like the game as much as my profile :)

I've been had

I seem to have fallen for a trick.

I don't know about your profile provide a link

minimum requirementsa?

The game uses extensive use of mesh instancing, which requires a DX11-level graphics card.

(It may run on other graphics cards, but is likely to be very slow.)

Absolutely loving this, really happy to see a Linux build so early on!

Very interested to watch this continue development :)



i try to install and get "No compatible uploads were found for this title".


What are you trying to install? There is not install for Windows, and I don't think there should be one for Mac and Linux.


I think the issue is that none of the downloads have been tagged with their respective operating system, making them un-installlable through the client.

THANKS CYBOLLIC!  Yeah, that probably was the case! Thanks!

I can confirm that the Linux client now shows the "Install" button and that it downloads the correct package :)

I just beat the game after struggerling on the second mission but i found a really cheap and easy strat to help me win that i haven't seen anyone use Try using pylons as a wall give it a go it will change your life.


Haha!  That's not how we intended pylons to be used :P

Did you beat the entire game and found that the second mission was the most difficult?

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yes that is how i found it, it probably was because that mission helps you decide how you want to play the game, but still it was brilliant and i look forward to more of you're hard work thank you.

you should add an endless defense mode

This is an excellent idea!

The final mission is fun, but I could easily go 20 + rounds.

Maybe an increase in alien damage as well.

increase in alien damage sounds good but also new aliens is a must if the game is going to expand

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