Since .rar files are compressed archives, you cannot run them directly. You must extract the contents first:

If you don't already have the game, the official version is available on Steam , PlayStation , and Nintendo Switch . Autonauts for Nintendo Switch

Open the new folder and look for an application file ending in .exe (usually named Autonauts.exe ) to start playing. Game Overview & Key Features

Build an army of bots to handle fishing, cooking, tailoring, and farming so you can focus on expanding your settlement.

Includes Colonise (story mode), Settlement (metropolis challenge), Free (unlocked tech), and Creative .

The file is a compressed archive containing the game Autonauts , a popular automation and colony-building simulator developed by Denki . In this game, you travel across the universe to colonize uninhabited planets by automating every task—from gathering resources to building complex civilizations—using an army of programmable workerbots. How to Open "Autonauts.rar"

You teach your bots tasks using a simple "show-and-tell" visual programming system based on Scratch .

Use free tools like 7-Zip or PeaZip , or the shareware WinRAR .