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SpaceEngineNews0.991.50.2155 Public Beta
Game update

0.991.50.2155 Public Beta

SpaceEngine · published 10 Aug 2026, 14:42 UTC · build 24591999

All newsPlayers around this dateRead on Steam

Hey folks~

The next batch of updates and fixes is now available for public testing. This includes some future-proofing work for system builders and ship modelers, as well as adjustments made from community Catalog Notes and the addition of the first-of-its-kind exosatellite CD-35 2722 B b. Some of these changes are more involved than simple patch notes can provide, so we've written up extra details for your perusal on our website: https://spaceengine.org/news/blog260810/

To opt in to the Beta branch, go to your Steam library, right-click SpaceEngine, then go to Properties> Game Versions & Betas, and select beta (public beta branch) from the list. To report any issues that arise, go to the Troubleshooting and Bug Reports section of the Steam forums, or the #bug-reports channel in our official Discord.

Changelog:

  • M-type brown dwarfs and L-type main sequence stars now have correct labels

  • Planetary mass “star” objects with spectral type M and later will now be labeled as planemos

  • Spacecraft materials now support gamma adjustment for Diff/Emis maps and green channel inversion for DirectX normal maps. The following parameters have been added for use in .sml files (see the website post for more information)

    • DiffGamma/EmisGamma: values greater than 0 behave as a simple power gamma adjustment, while values below 0 instead use a fixed piecewise sRGB to linear conversion

    • DirectXNormMap: a boolean that inverts the green channel if set to “true” (DirectX and OpenGL normal maps have flipped green values)

  • Fixed a bug where searching in the Star Browser for a planet with a pressure range that included 1.0 atm returned every gas giant in the search radius

  • Updated the CD-35 2722 system and added the newly discovered exosatellite CD-35 2722 B b

  • Updated Jupiter’s size and shape with the latest Juno data

  • Corrected Titan’s mass

  • Updated distance to M 99

  • Fixed distance, size, and orientation of Ring Nebula

  • Added Ring Nebula’s central star as a catalog object

  • Fixed distance, size, and orientation of California Nebula

  • Reduced luminosity of Pleiades Nebula for increased realism

  • Updated distance to Puppis A

  • Added newly published properties for The Garnet Star

  • Corrected orbital parameters of Mu Ara’s planets

  • Removed liquid ocean from Wolf 1061 c

  • Updated Gliese 777 system (removed extra planets, added missing d planet, updated properties for b and c planets)

  • Updated the exoplanet catalogs with 27 new host stars, 30 new planets, and five new brown dwarf candidates

  • Added 12 new binary asteroid systems, updated some binary system names

    • Added newly assigned name to 1999 JB80: Karolinadziadura


Catalog Additions:

Binary Asteroids:

  • Nysa

  • Nash

  • Korankei

  • Tippett

  • 2002 TC302

  • 2014 GX53

  • 1999 SY8

  • 2013 HU156

  • 2000 AO1

  • 2003 SD106

  • Harwood

  • 1999 BG2

Brown Dwarf Candidates:

  • HD 16760 b

  • KMT-2023-BLG-0332L b

  • TIC 52059926 b

  • TIC 9344899 b

  • TOI-6884 b

Exoplanets:

  • Gliese 3378 b

  • HD 5388 b

  • TOI-3457 b

  • TOI-707 b

  • GJ 777 A d

  • HD 125136 b

  • HD 126105 b

  • HD 127195 b

  • HD 127195 c

  • HD 190360 d

  • HIP 10090 b

  • HIP 10090 c

  • HIP 39330 b

  • HIP 8923 b

  • HIP 98599 b

  • KMT-2023-BLG-1592L b

  • NGTS-38 b

  • OGLE-2023-BLG-0766L b

  • TIC 150070085 b

  • TOI-1533 b

  • TOI-1533 c

  • TOI-2147 b

  • TOI-3664 b

  • TOI-4034 b

  • TOI-6019 b

  • TOI-6564 b

  • TOI-791 b

  • TOI-791 c

  • BET Pic d

  • CD-35 2722 B b

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Game update17 Aug 2026Build 0.991.50.2155Hey folks! The August update has passed Beta and is now live! This includes some future-proofing work for system builders and ship modelers, as well as catalog adjustments made from community notes and the addition of the first-of-its-kind exosatellite CD-35 2722 B b. We've written up extra details on some of the more involved additions for your perusal below: New Spacecraft Material Config Opt…Game update9 Jun 2026Build 0.991.50.2145Hey folks! No issues arose from the Beta, so the June catalog update is now live! This update brings a fix to unit conversion for stars with masses defined in kilograms, as well as a fix for artifacts with ship engine effects for those who like to fly in Ultra quality. And of course, an extra large helping of catalog entries with 142 new exoplanets and more~ Changelog · Fixed artifacts with shi…Game update2 Jun 20260.991.50.2145 Public BetaHey folks! It's been a busy month for exoplanet data releases, with as many, if not more, than the entirety of Spring! We appreciate the increase in quantity and quality of catalog notes we've been receiving from the community across all platforms. The object-specific fixes you see in patch notes frequently stem from your academic finds, so keep up the good work! This update brings a fix to uni…