Beyond the Chiron Gate by John Ayliff

Beyond the Chiron Gate is a text-based space exploration roguelike. Explore an endless universe filled with exotic planets, strange life forms, and ancient civilisations. Manage a crew of space explorers and upgrade their ship with new technology. Brave dangerous worlds to gather the data you need to reach the home system of the mysterious Gatebuilders.
The middle of the 23rd Century. A space probe operated by the Global Astronomical Society detects unusual energy readings from the asteroid 2060 Chiron. A crewed follow-up mission detects a million-year-old artefact buried beneath the asteroid’s surface. A ring of exotic matter that bends space and gravity. A Gate, which when activated could lead anywhere in the galaxy…