Astroneer Patch 1.40.3 Notes (May 2026)

System Era has been upfront about one of Astroneer's most-requested fixes in Patch 1.40.3, and I appreciate the transparency. Rather than promising one massive Intermodal Terminal overhaul at some unspecified future date, the team is breaking IMT improvements into smaller, incremental releases. First up: fixing the automated loading and unloading of slotted storage between Rail Cars and Shuttles, which has been the loudest community complaint by far. Unifying Loading Modes across IMT Rail Stations and Landing Pads is also on the list, closing off a frustrating config trap where setting one side to "Loading" and the other to "Unloading" results in nothing happening at all.

Beyond the IMT roadmap, the patch adds new Astropedia tutorial pages for Megatech content, accessible via the rocket ship icon in the menu. For players still figuring out Megastructures through trial and error, that's a practical addition. There are also print-time reductions for Mega-Modules and the Construction Anchor's Deployable Landing Pad, which should make those longer build sessions feel less punishing.

The bug list covers a wide spread: Orbital Platform visibility after save reloads, PS4/PS5 host crashes in multiplayer, Solid-Fuel Thrusters ejecting into space when exhausted, and a Museum Display Case Perk issue affecting older saves. One known issue ships with the patch: Mega-Terrain Platforms won't be visible to multiplayer clients when viewed from a planet's surface, with a fix targeted for June.

Here's everything that changed.

The patch for May is now available to download, with plenty of fixes and some improvements for you to review in the patch notes below.

We also know that it’s been some time now since our last update to the community on the development plans for Astroneer in 2026. We’re working on another update to give you more context on plans for the remainder of the year, so keep an eye out for that.

That said, there’s one topic we’d like to cover now.

WORK ON THE INTERMODAL TERMINAL

We've seen a lot of questions being asked within the community about if and when we're going to be making changes to the Intermodal Terminal (or IMT for short), so we wanted to share an update about that!

From the development side of things, we've decided to break down improvements to the IMT into smaller clusters of work that target specific issues, instead of delivering one huge overhaul in a single update. The primary reason for doing this is that it will allow us to get these improvements out incrementally, sooner than us delivering it all in one go!

The team has collated the community's feedback, and work is already in progress. Some of the things on our list to address are:

Improving the automated loading and unloading of storage with slotted items between Rail Car trains and Shuttles.
Dev Note: We’ve seen the most feedback over this topic in particular, so we’re starting by looking at this one first.

Unifying the Loading Modes of the IMT Rail Stations and Landing Pads. Currently one can be set to "Loading" and the other to "Unloading", resulting in nothing being loaded or unloaded.

Allowing refueling of Shuttles and the Landing Pad Fuel Tanks via the IMT Rail Stations.

Updating the IMT Landing Pad Control Panel experience.

We want to be as transparent as we can with you all, and the reality is that the IMT is a complicated and rather time-consuming Megastructure to work on. It interacts with multiple existing systems in the game, has a lot of edge cases, and can be used in many different ways by different players, which means it's taking us a bit longer than we had hoped. This isn't to say we aren't determined to fix it, though.

Please keep sharing your feedback with us - it's been monumentally valuable, and we'll be updating the game with these incremental improvements and fixes as soon as they're ready to release! You can also keep an eye on our public Bug Tracker to see when fixes to key issues are likely to make it into the game.

MEGATECH TUTORIALS ON ASTROPEDIA

We’re excited to add new entries into the in-game Astropedia to help Astroneers get started on their Megastructure projects! We know there’s a lot to learn here through trial and error, so these new visual references should be a big help for that learning experience.

Click on the Menu’s rocket ship icon to enter the Astropedia and find these new entries near the bottom, under the Tutorials section and in the new Megastructures subsection.

BUG FIXES

Megastructures

Fixed an issue where the expanded control panels on Megastructure Component Printers and Mega-Printer Platforms appeared cut off when FOV was set to 45.
Fixed an issue which caused Megastructure Component Printers (MCP) to pull resources from used Canisters that have fallen off the Printer.

DLS:

Fixed an issue which caused the Print Sprint Mission to not complete after printing the DLS.

Orbital Platform:

Fixed an issue which caused the holograms for deployed Landing Pads to be too large.
Fixed an issue which caused the Orbital Platform launch cutscene to be played at unintended volume levels.
Fixed an issue which caused the Orbital Platform to become invisible after reloading a save.
Fixed an issue which caused the Mega-Terrain Platforms to lose applied patterned creative terrain paint when reloading the game.
Fixed an issue in Multiplayer which caused players who weren’t on the Orbital Platform to get stuck on a transition animation when landing on it if another player changed the shape of the MEGA-Mini Asteroid.

Biodome:

Fixed an issue where the Biodome Expansion module could still be placed when certain items would block the area.

Museum:

Fixed an issue where Display Case Platforms with completed collections wouldn’t grant Collection Perks correctly in older saves if the platform was connected to a power network.
Fixed an issue where the Resource Donation Station would pull resources from canisters slotted on the Museum Megastructure Component Printer if the canisters were set to output.
Fixed an issue where an unpowered Megastructure Component Printer would begin to print if the print was cancelled and then power was enabled.
Fixed an issue where the Museum tooltips wouldn’t display correctly when using a controller.

Miscellaneous

Fixed an issue that could cause Solid-Fuel Thrusters to automatically be transferred to a Shuttle’s storage or be ejected into space when they are fully exhausted.
Fixed an issue which caused the Unidentified Satellite and the Sun Room to not provide oxygen.
Fixed an issue which prevented the Musical Mushroom from being placed in diagonal T2 slots, such as the ones on Medium Platform A.
Fixed an issue on the Xbox for PC App where user game settings might not get saved if a player has played the game on multiple accounts on the same PC.
Fixed an issue on Xbox for PC App where user game settings were not syncing to the cloud.
Fixed a multiplayer issue on PS4 and PS5 which caused the host to crash when they tried to load another save whilst clients were connected.
Fixed an issue where the Megatech Save Icon on PS4 and PS5 was displayed inconsistently.
Dev Note: Players will need to first load into a saved Megatech game to enable the icon.

IMPROVEMENTS

Added new Astropedia pages for Megatech content.
Added a visual effect that shows printing progress to the Megastructure Component Printers.
Updated the Auto-Fertilizer tooltip to state that it needs Organic to function.
Improved the wording for Missing Collection Items in the Display Case Platform tooltips.
Added new and improved animations for the Mega-Printer Drone.
Decreased the time it takes to print Mega-Modules and the Construction Anchor’s Deployable Landing Pad from the Megastructure Component Printer.
The Orbital Platform now has an improved Shuttle destination icon in the Intermodal Terminal control panel.
Renamed the Orbital Platform Launch Tube to Orbital Platform Loading Chamber.

KNOWN ISSUES

The following issue was identified late into the review process for this update, and we will aim to address it in our next patch in June.

During multiplayer, Mega-Terrain Platforms are not visible to clients when viewed from a planet's surface.

We look forward to hearing your feedback on the latest changes! Keep an eye on our Live Bug Tracker to check the status on other bugs present in the game, and if you run into an issue that isn’t listed or you have more information to share, please send us a bug report.

– Honourael.

Astroneer Patch 1.40.3 Notes (13th May 2026)

Full Patch Notes

WORK ON THE INTERMODAL TERMINAL

MEGATECH TUTORIALS ON ASTROPEDIA

BUG FIXES

Megastructures

Miscellaneous

IMPROVEMENTS

KNOWN ISSUES

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