After a week-long winter break, development now continues toward the upcoming 1.1 phase. I will soon share a dedicated post outlining what players can expect from this next stage.

This minor update focuses on improving overall usability and addressing issues reported by the community following the recent physics update. Several mission typos have been corrected, along with small mission flow adjustments and checklist updates aimed at making procedures clearer and easier to follow during gameplay.

One important fix resolves an issue where incorrect use of P52 could cause the spacecraft to teleport to another location, most commonly during the Command Module entry phase. This behavior was caused by invalid data being passed into the physics system, leading to calculation instability.

Additionally, an issue with the Command Module battery charger has been fixed. Previously, instruments could indicate a small charge flow even when batteries were already fully charged, making it difficult for players to reliably interpret system status. The fix improves feedback clarity and supports more confident decision-making during operations.

These 1.0.X updates are part of the ongoing effort to respond to feedback and refine the experience through continuous improvements between larger feature updates.

You can always revert to a previous version via the Steam Betas tab if needed. The latest previous version is: 1.0.41. The rollback option is there to ensure smooth user experience in case something does not behave as expected.

Patch notes:

• Checklist updates

• Typo fixes

• Fixed and issue where P52 option 2, if supplying a time in the past, could make the craft teleport due to a crash in the physics engine. This is a common call during the current CM entry procedures.

• Command Module Battery charger fix

For the past few weeks I have been working on a major physics upgrade, updating Lyra Engine and Gravity Engine to their latest versions. This has been a demanding process with a lot of moving parts, and almost everything related to orbital mechanics has been affected in one way or another. A significant amount of functionality has been re-implemented, and several post-migration issues discovered during testing have been resolved.

The goal of this upgrade is first and foremost to improve overall stability and reliability of the physics engine. It brings in important bug fixes from the latest engine versions and lays the foundation for more advanced physics, trajectory calculations and orbital mechanics as we move toward version 1.1. In short, this update is about making Reentry more robust and opening up for more features for orbital maneuvering.

This has been a costly upgrade in terms of time, and it will likely require a few additional iterations to address quirks and edge cases that may not yet have surfaced during testing. The build has been in the hands of the Test Pilots and available on the public alpha-floor branch for the past two weeks. Since this is a major underlying change, you may notice differences in behavior compared to previous versions. If you encounter issues that were not present before, please report them and your feedback is highly appreciated.

You can always revert to a previous version via the Steam Betas tab if needed. The latest previous version is: 1.0.30. The rollback option is there to ensure smooth user experience in case something does not behave as expected.

I have tried to keep this update primarily focused on the physics engine upgrade. However, some critical mission updates, checklist updates, content fixes and minor bug fixes are also included to ensure consistency.

Patch notes

• Lyra Physics and Gravity Engine (orbital mechanics) version update

• Fixed typos in the new CM Academy lesson 9A (Earth Entry)

• Updated the CM Academy lesson 6 (SPS) to reflect the latest SPS electricity and logic changes

• Fixed the collider of the O2 HI RATE switch in Gemini

• Fixed the Highlight Handler transparency as it made it hard to see the panels through it

• Fixed an issue where the CM SM/RCS jets can correct rates even when AUTO RCS JET sw is in OFF

• Made fixes to the CM RCS powered jet Ring 1&2 logic circuits

• Tied the CM optics star identification helpers to the UI labels showing what star you are looking at

• Fixed an issue where the SIVB had the potential to overwrite V49 auto maneuvers (roll to 180)

• Iterated on the CM SPS logic

• Fixed an issue with the Gemini Retroburn Planner that prevented input if previous retro time was in the past