Oolite is an open source clone of the classic space trading game Elite.

https://www.oolite.space/

Oolite: an open-world space opera

Among the seven trillion people who are - at least officially -
Cooperative citizens, you are nobody. So far, anyway. You've got a ship,
some weapons, and enough spare cash to get started - and one day, you
might get the fame, wealth or glory you want. Perhaps one day, everyone
might know your name. If, that is, you can survive that long.

The two thousand star systems of the Cooperative once enjoyed a golden
age of peace and prosperity, and perhaps the wealthiest of them can
still pretend to. The trade ships that once safely travelled between
planets now have to be well armed and escorted to fend off pirate
attacks, from small-time criminals desperate for their next meal, to
powerful robber barons extracting tithes from everyone who passes
through their space.

The Cooperative's police force, concentrated near a few influential
planets, can no longer maintain order. The mercenaries they hire for a
few credits a kill are too few, too unreliable to do so either. And in
the darkness between the stars, an old enemy lurks, fearless, perhaps
waiting for order to collapse entirely.

Good luck, Commander.

Oolite 1.90 is the latest stable release, pushing further into
delivering a beautiful cosmos, while extending customizations scripting
capabilities and promoting expansions realism, for the sole purpose to
immerse you into an enjoyable gaming experience. Check out some feature
highlights:

Oolite Starter!
Extended graphics capabilities for custom planets
Improved and configurable planet atmosphere
Filmic tone mapping and new universe lighting system
Scripting, game experience improvements and bug fixes

Oolite Starter

OoliteStarter has been published. It makes installing or managing the
hundreds of available Oolite expansions an adventure of it's own:

Allows installations of the expansions from our new site
https://oolite.space
Visualizes the known interdependencies or conflicts of expansions
Allows the sharing of expansion sets with other players - or your
future self!
Remembers which expansions were installed when playing/saving a game

Download from GitHub.
Extended graphics capabilities for custom planets

Custom planets now support normal and gloss maps, transforming dull
planet mountains and canyons textures into a visual spectacle.
Furthermore, taking advantage of the illumination map capability, the
planet dark sides come to life!

Improved and configurable planet atmosphere

Atmosphere new configurable parameters, give the Expansion Packs
developers the liberty to generate an atmosphere, matching what they
have imagined for the worlds they are creating.
Specular Earth (screenshot by another_commander, edited by Getafix)

Filmic tone mapping and new universe lighting system

Further graphics improvements include filmic tone mapping, Oren-Nayar
diffuse light model and increased light source radiance for better
visibility of objects in space and more.

Scripting, game experience improvements and bug fixes

Scripters' arsenal has been enhanced with even more control on graphics,
weapons, commerce and gameplay. Weapons now have individual sounds
assigned to them. Turrets count information, where available, is added
in Ship Library screen. The famous Lave planet appearance has been
updated to further match its description. The navigation buoy has been
renovated. More in-game functionality, like docking computer option and
docking clearance, can now be assigned to joystick controller. As
always, stability has also been further improved, with plenty of
previous version bugs fixed.

Read the Oolite Bulletins announcement and get the complete log of
Oolite 1.90 changes from the GitHub repository.