Astroneer 1.39.5 lands with a long list of fixes and a free STARSEEKER suit

Astroneer Patch 1.39.5 is available now, and it brings a wide set of fixes alongside a temporary free reward tied to STARSEEKER: Astroneer Expeditions.

Along with the bug fixes, the development team pointed players to its recent Triple-i Initiative showcase appearance, the studio’s 2026 update post at their blog, the running EXO Cares Initiative, and the Live Bug Tracker that now covers legacy issues dating back before Megatech.

The update also is not backwards compatible, so saves made in this version will not run on older builds. If that matters for your setup, the team recommends making a backup copy of your save file.

For players who want the new cosmetic, logging into ASTRONEER at any point over the next few weeks will automatically unlock the STARSEEKER Expedition Suit. After it appears, it can be equipped from the customization menu.

Patch Notes

Here’s the full list of fixes and improvements included in 1.39.5.

FREE STARSEEKER EXPEDITION SUIT

Unless you have been under a research module for the last year, you probably know that we are working on a brand-new game in the Astroneer universe, STARSEEKER: Astroneer Expeditions!

While we gear up for the launch of STARSEEKER in 2026, we wanted to make sure the Astroneer crew could get in on the fun! Log in (open up ASTRONEER) at any time for the next few weeks to automatically unlock STARSEEKER’s Expedition Suit. Just head to the customization menu and equip it and you are good to go! (It might take a few minutes to unlock).

BUG FIXES

Megastructures

• Fixed an issue where Megastructure holograms would rotate 90° from their Anchor holograms.
• Fixed an issue where the Mega-Deconstructor would appear in the Creative Catalog on Aeoluz.

DLS:

• Fixed an issue where the DLS hologram would face away from the player.
• Fixed an issue which caused an incorrect version of the Construction Anchor Landing Pad Hologram to appear when trying to place it.
• Removed the DLS Anchor from the Research Catalog in the Adventure Mode as it’s not printable in this mode.
• Fixed a bug where players would see the Launch Tube door animate open even though it was already open when placing an Orbital Platform Package.
• Fixed an issue where the Orbital Platform Construction Anchor would be available before the mission ‘Constellation Prize’ is unlocked.

Orbital Platform:

• Resolved an issue which caused power plugs to not extend when pulled.
• Fixed an issue which could cause the Backpack UI to display when choosing which planet the Orbital Platform orbits.
• Fixed an issue where players could get more than one Orbital Platform Construction Anchor.
• Repositioned cable plugs that were incorrectly placed inside the MEGA-Mini Asteroid on the Orbital Platform to their correct positions.

Biodome:

• Fixed an issue in multiplayer where the host and client saw different timers on the tooltip for growing seeds in the Biodome.
• Resolved a bug which removed the timer for plants grown in the Biodome after saving a game and reloading.
• Fixed an issue where the Auto-Harvester would not harvest grown seeds in the Biodome Expansion module, if the module was slotted in a specific Mega-Module slot.
• Fixed a problem where sometimes the countdown for planted seeds would go back to its original timing after hitting zero.
• Fixed an issue where non-Mega-plants could clip through the Biodome roof.
• Resolved a problem where Spine Lily Seeds couldn’t be placed into Medium-Resource Canisters.

Museum:

• Fixed an issue where the Museum control panels and donation buttons can’t be interacted with properly via automatic targeting when using a controller.
• Fixed multiple issues where players couldn’t claim donation milestone rewards from the Museum.
• Fixed issues that were preventing some Collection Perk effects from scaling correctly with additional duplicate collections.
• Fixed an issue which caused power plugs to remain attached to the Display Case Platform, extending beyond typical cable length and not detaching.
• Resolved an issue where a player’s Backpack power capacity wasn’t increased after claiming the Milestone 3 Donation perk from the Museum.
• Fixed an issue where the increased Backpack power capacity Museum Donation Perk would still be active when the Museum had insufficient power.
• Fixed a problem where the increased Backpack power capacity Museum Donation perk would become inactive after saving and reloading a save.
• Fixed a problem in Multiplayer where client players would see the oxygen capacity Museum Donation Perk rapidly flicker on and off when their oxygen capacity was at the halfway point.
• Resolved an issue where players would be prompted to claim a Museum Milestone reward they had already claimed.
• Fixed an issue which caused the final objective in the Donation Drive Mission to show as completed when it wasn’t.
• Fixed an issue which caused packaged Display Cases to appear smaller in the Hologram than they would be when unpackaged.

Miscellaneous

• Fixed an issue in multiplayer where players may get stuck inside their shuttle when trying to travel to different planets.
• Fixed an issue on Switch where landing zones may not appear on Vesania.
• Fixed a problem where collision remains in place after a Walkway is stowed in a backpack or removed on dedicated servers and multiplayer.
• Fixed an issue where the Simulated Aquarium was no longer showing in the Research Catalog, preventing players from unlocking it in Adventure Mode.
• Removed collision from Walkway holograms when trying to place them.
• Removed the term “DLC” from the Glitchwalkers Astropedia for consistency.
• Fixed a crash when loading a save if it contains Terrain Anchors that were out of bounds.
• Fixed an issue where players couldn’t walk on redeployed constructed Walkways if they removed the middle Walkway Post.
• Fixed an issue where a Walkway can’t be redeployed if the player moves the middle Walkway Post out of range of the existing Walkways.
• Fixed an issue where the Tether Dropper would not draw power.
• Fixed an issue where if a player removed a middle Rail post between two other Rail posts that were in connection range of each other, the Railway would not redeploy.
• Fixed an issue where players who had launched the game from the Xbox app on PC would visually display as PlayStation players, when they connected to the Dedicated Server.
• Added tooltip subtitles for several Megatech items.
• Fixed an issue which caused some saves to crash on loading the game if canisters were attached to a Megastructure Component Printer.
• Fixed an issue in Creative Mode which gave the Mini Shuttle unlimited fuel even when the Unlimited Fuel option was disabled.

Legacy Issues

• Fixed a legacy issue where large rail networks in multiplayer would stop functioning once they reached a certain level of rail connections.
  • Dev Note: This issue has been around for a while and has been a significant source of frustration for players. We’re excited to get a fix out in players’ hands and look forward to hearing your feedback!
• Fixed an issue on PS5 where the suffocation vibration on controllers doesn’t stop when reconnecting to oxygen with Air Filters, Gateway Chambers/Engines or switching to Creative Mode. This also fixes the suffocation audio not stopping on all other platforms.
• Fixed a set of issues that could occur when slotting small items onto vehicle Drills. As a result, the slots on Vehicle Drills are only output slots now.
• Fixed an issue where Base Game custom game configs were shown in Glitchwalkers, and vice versa.

IMPROVEMENTS

• Added a “Return” option that shows up when launching the Orbital Platform in case players want to cancel the launch and exit the planet selector.
• Added a new secondary action onto the tooltip for the Construction Anchor Landing Pad which can recall loaded Anchors.
• Added an On/Off function to the Auto Fertilizer.

Patch 1.39.5 is a broad cleanup pass, and it also gives a clearer look at how the studio is keeping Astroneer active while STARSEEKER moves forward. If you have thoughts on the update, share them in the comments below. You can also follow us on X, Bluesky, YouTube, and Instagram.