You can use tools like [Switch Army Knife (SAK)](github.com dezem/SAK) to merge your base game NSP with the update and DLC into a single file for a cleaner installation. Version 1.39.5 Highlights
Download the specific Update NSP file corresponding to version 1.39.5 and install it using a tool like Tinfoil , DBI , or Awoo Installer . Astroneer SWITCH NSP [Update] (eShop)
Includes numerous legacy bug fixes and quality-of-life improvements. How to Update Software on Nintendo Switch | Support You can use tools like [Switch Army Knife (SAK)](github
This version is not backwards compatible . Saves created or opened in 1.39.5 cannot be used on older versions of the game, so it is recommended to back up your save files before updating. How to Update Software on Nintendo Switch |
Select , then choose Via the Internet to download the latest patch. NSP Update (Modded Consoles):
For on the Nintendo Switch, the latest software version is 1.39.5 , released on April 17, 2026 . This update is significant as it provides all players with the free Starseeker Expedition Suit and brings the Switch version into parity with other platforms. Update Installation Methods Official eShop Method: Highlight the Astroneer icon on your Switch HOME Menu. Press the + or - button to open the Options menu.