It is currently available for free as an alpha prototype. Gameplay Overview

Set in the distant future, the game tasks you with colonizing . You must manage a resource extraction outpost under the supervision of the "Human Mothership". Key features include:

The project was last updated around late 2019 and is considered an early-access prototype . System Requirements & Tips OS: Windows 7, 8, or 10 (64-bit recommended).

The official and safest way to download the game for PC is through its project page: Official Download Link: Second Earth on itch.io Platforms Supported: Windows (64-bit), macOS, and Linux. File Size: Approximately 407 MB for the Windows version.