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Oolite: An open source open-world space opera
There are well over a thousand expansion packs released for Oolite. There are two expansion pack formats in use since Oolite 1.80, usually referred to as OXZ and OXP.
❗ Expansions are created by community members and are provided "as-is", with no warranty or guarantee whatsoever, and are not endorsed or vetted by the Oolite development team. The OXZ format is more modern and can be downloaded and installed automatically by the game by selecting the "Manage Expansion Packs" option on the start screen. If you are still using Oolite 1.77.1 or an earlier version, these OXZ format expansion packs will not be usable.
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