Ancient asteroids dot the surface of this derelict mega structure. Reactivate ancient machines to bring Hephaestus back online and unlock powerful ways to transport items, exchange tokens for items, and vice versa. But beware the hornets. Designed to not effect base game - safe to drop into an existing save. Designed to not add tile effects or layers.
Mods introducing new content into the game.
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Version: 0.3.4
Date: 2026-09-02
Balance:
- Amplified incoming laser/tesla damage to hornet nests to match the rest of the hornets.
- Added 'idle' asteroids to all space locations
Gui:
- Changed name for Requestor recipe select box
- Changed name for Converter recipe select box
Compatibility:
- Changed logic for Stand Alone Mode setting to auto-enable is Hephaestus is selected in Any Planet Start
- Changed logic for specifc token-to-wood recipe to auto-enable if Lignumis is detected as enabled, this setting will also turn on with Stand-Alone-Mode
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Version: 0.3.3
Date: 2026-09-02
Bugfixes:
- Force asset update
Info:
- Whoops
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Version: 0.3.2
Date: 2026-09-02
Info:
- Fixed some spelling mistakes in the changelog
Compatibility:
- Added Any Planet Start compatibility
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Version: 0.3.1
Date: 2026-08-24
Bugfixes:
- Finally fixed fluid boxes on Processors
Gui:
- Fixed some icons in /editor mode to match their enties.
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Version: 0.3.0
Date: 2026-08-22
Optimizations:
- Moved assets to a new mod; heph-assets to stop redundant downloads of music and graphics
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Version: 0.2.2
Date: 2026-08-22
Changes:
- Moved requisitioner to its proper subgroup in the UI
- Added names to warp relays for ease of use
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Version: 0.2.1
Date: 2026-08-14
Features:
- Added music, Credit to @SophieMarieLulz on youtube.
Changes:
- Moved one of the warp apertures so it's easier to read the word "Hephaestus" on space-map view
Graphics:
- Set Hornet back to original biter graphics - for now.
Bugfixes:
- Hopefully removed conflict with redrawn space connections mod
Optimizations:
- Removed old localization references to Assembly Machine 4
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Version: 0.2.0
Date: 2026-06-26
Features:
- Improved maze/map generation, this shouldn't be touched for a long time now.
- Added Space Platform to Requisitioners
- Added Wood to Requisitioners while standalone mode is enabled, or if Lignimus is detected
- Added Aquilo warp route and technology unlock
- Added specialized beacons
Graphics:
- Changed Extractors to continue using the old pre Factorio 2.1 graphics. I just think they're neat.
- Specialized beacons use older pre 2.1 graphics.
Bugfixes:
- Made planet gen sliders behave in a more expected manner
Changes:
- Removed 'assembler 4' entity. It was pretty redundant.
Balance:
- Removed ability for Extractors to accept quality and efficiency modules.
Compatibility:
- Listed Lignimus as compatible
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Version: 0.1.9
Date: 2026-06-20
Features:
- Restored flight to hornets
Bugfixes:
- Added missing localization names
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Version: 0.1.8
Date: 2026-06-15
Features:
- Upgraded orbit graphic to have slightly more pixels.
- Added Ribbonia compatibility.
- Added warp aperture connection to Ribbonia, which should only appear if you have Ribbonia installed
- More localization tags
Bugfixes:
- Changed capitalization of file name for better stability on some machines
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Version: 0.1.7
Date: 2026-06-12
Bugfixes:
- Stopped auto_recycle recipes from overriding base game returns. Thanks stef77.
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Version: 0.1.6
Date: 2026-06-11
Bugfixes:
- Changed the Transitive science pack to be craftable in the Processor, not an assembler.
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Version: 0.1.4
Date: 2026-05-31
Features:
- Adjusted space route and location.
- Added more localization keys.
- Added more entities and research nodes.
- Adjusted research values.
Bugfixes:
- Removed a couple of duplicate recipes.
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Version: 0.1.3
Date: 2026-05-23
Features:
- Adjusted planet generation (again).
- Adjusted space-routes and landing animations.
- Adjusted entity spawning.
- Added achievements.
- Added temporary hornet graphics.
- Added lots of localization keys.
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Version: 0.1.2
Date: 2026-05-19
Features:
- Adjusted planet generation.
- Added lubricant leaks to the surface.
- Changed Hornet behavior.
- Added lots of Hurrican046 graphics to make buildings more distinct.
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Version: 0.1.1
Date: 2026-05-17
Features:
- Fixed spelling mistakes in info.json.
- Added asteroids to the space route and space location.
- Adjusted extractor spawn percentages across the maze.
- Added default import location for all custom items.
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Version: 0.1.0
Date: 2026-05-17
Features:
- Added Hephaestus planet prototype with custom maze generation.
Balancing:
- Adjusted Tier 1, 2, and 3 extractor spawn probabilities.
- Scaled hornet nest danger thresholds based on distance from spawn.
Scripting:
- Implemented a localized custom surface condition check for advanced recipes.