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89 Leonis orrery

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A first-person space simulation of the whole Milky Way on Unreal Engine 5: true Newtonian flight, a crewed ship you walk while she flies, worlds you land on, and 111 billion stars at true scale, the measured ones where astronomers put them. In pre-alpha, with no release date yet.

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Star catalogue: the HYG Database by David Nash, licensed CC BY-SA 4.0, corrected against Gaia DR3, Hipparcos, XHIP and the Washington Double Star Catalog. Pulsars from the ATNF Pulsar Catalogue. Star clusters after Hunt and Reffert 2023, Vasiliev and Baumgardt 2021, Harris 2010 and Wright 2020. Wiki text is CC BY-SA 4.0. Full credits on the licensing page.

Unreal Engine is a trademark of Epic Games, Inc. Pax Abyssi is made by the Pax Abyssi team.