An artificial Solar System built as a Doomsday bunker for the Universe's slow death.

The universe started like any other...with a Big Bang. Like everything however, the Universe was dying, stars weren't being born anymore. Life was beginning its great decline. The alien Architect Benali decided he would not stand idle waiting for the universe to grow dark and empty again so he created a solar system that would never. Life wasn't immortal for the inhabitants but life would continue forever.

The star "The Dawnbreaker engine" holds 24 planets within 4 rings in its golden zone.

Benali scouted inhabited worlds for inspiration when creating the 24 worlds that would fit into the system. He came across Earth early in his search during the 80's and fell in love with a human farm owner Delilah who assisted Benali in learning about our world. They would eventually marry and continue working together.

The Dawnbreaker Engine: The Dawnbreaker Engine is connected to each planet through the Spires. Each planet has a Spire from which the engine sends out the life equation, working like code and photosynthesis, the life equation gives the intelligent inhabitants of each world an advanced natural instinct allowing them to develop faster, also helping them utilize resources and clean energy so they live with the world and maintain rather than destroy it and allow a cycle to run again.

The Blackgates: Every world is also connected through the Blackgates, a system of portals built to make construction of the system easier. Inhabitants also use it for supply lines and travel. The Blackgates use simple time travel to make sure whatever goes in comes out a few seconds after they left so no wild time travel issues of travelling faster than light and going insanely far into the future.

The Cores: Each planet's core is built and the rest of the planet is generated from the core.

The Veil: Surrounding the system is a powerful shield, it hides the system from other civilisations so they do not corrupt it and or consume it. It is also like a reverse solar panel, powered by darkness, so the supply is limitless.

Same as regular physics if not then bullshitted for story telling.

Anniversary/ Meron: A world built to mirror Earth but only in flora, fauna and living conditions other than that Anniversary is it's own world with it's own continents. The planet was built as an Aniversary gift for the Architects human wife Delilah.
This world was once stuck in a medieval phase. The planets spire had been infected with a Virus, stopping the life equation and starting something more horrific.
Eventually the issue would be resolved by the human inhabitants and eventually they would continue to grow quickly and expand into the system.