Ad Astra: Ashes of Luyten
by Kononets
Ashes of Luyten is an addon for Ad Astra that opens a new system called Luyten, with three planets to explore.
What it does
The addon brings Luyten into Ad Astra as a new system. Its planets carry unique biomes, hostile and peaceful mobs, and dungeons, rooms and complexes. The storyline continues here, and a player reaches the system only after building a Tier 4 rocket in Ad Astra. Ashes of Luyten requires Ad Astra and Patchouli, the in-game guide book library, and it is published for Fabric and Forge.
Most of the content sits on the planets GJ 273 b, GJ 273 c and GJ 273 d. Dungeons have appeared so far on two of these worlds, while the third holds none yet. The depths of GJ 273 d contain a ruined alien structure where essential items can be found. Luyten Crystals and Luyten Scrap are used in new recipes for new items, and many things the addon uses cannot be crafted, so they have to be found in the world.
Files target Minecraft 1.20.1 only. The addon is released under the MIT License and is not open source. Both the server and every player need it, since the environment is client and server.
Key features
Three planets in Luyten
The Luyten system adds three planets to explore, each with its own unique biomes and terrain.
Hostile and peaceful mobs
New hostile and peaceful mobs populate the planets, alongside dungeons, rooms and complexes.
Special tools and abilities
Tools with special abilities are added, and some crafting requires items that must be discovered.
Alien ruins on GJ 273 d
The depths of GJ 273 d hold a ruined alien structure with new items to recover.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Use cases
Continuing the storyline
Players who have finished the base Ad Astra progression can carry on into the Luyten storyline on new planets.
Who it’s for: Players who want adventure and exploration after reaching the rocket stage of Ad Astra, and server owners who want a new planetary progression on 1.20.1.
How it compares
Ad Astra: Planets+ is a server-required addon for 1.20.1 – 1.20.4 on Fabric, Forge and NeoForge, with the server required and the client optional, under the MIT License. Ad Astra: Mythic Metals is a Fabric-only addon for 1.20.1, released under the MIT License, with a client and server environment. Ashes of Luyten is client and server, Fabric and Forge only, and is released under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Ad Astra: Ashes of Luyten | Fabric and Forge | 1.20.1 | Client and server | 2026-06-01 |
| Ad Astra: Planets+ | Fabric, Forge and NeoForge | 1.20.1 – 1.20.4 | Server required, client optional | 2025-02-04 |
| Ad Astra: Mythic Metals | Fabric | 1.20.1 | Client and server | 2026-06-28 |
Questions
Does Ashes of Luyten need Ad Astra?
Is Patchouli needed to play?
Which loaders and versions are supported?
In the catalog
Ad Astra: Ashes of Luyten is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 34,764 mods support Minecraft 1.20.1.
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What the author says
Ashes of Luyten is an addon for the popular mod Ad Astra, adding a new star system — Luyten. The mod adds three unique planets to the Luyten system. In the depths of GJ 273 d, you will find ruined alien structures with new items: Luyten Crystals and Luyten Scrap — from these, you can create new items and new recipes.
Official listing
- Modrinth page
- modrinth.com/mod/ad-astra-ashes-of-luyten
- Owner
- Kononets
- Published
- 2026-04-09
- Updated on Modrinth
- 2026-06-01
- Facts verified
- 2026-10-15