Factorio 2.0.77 released as stable Patch Notes (23rd June 2026)
Factorio 2.0.77 lands with a focus on stability, tackling deadlock issues and crash scenarios that were plaguing multiplayer and modded saves.
Factorio 2.0.77 is now live as stable, and this one's all about squashing the gremlins that shipped with earlier builds. The big story here is deadlock fixes, inserters would get stuck mid-swing if ammo spoiled while targeting a turret, and rocket silos could lock up due to mod changes. Both are the kind of invisible-until-they-ruin-your-run problems that make multiplayer sessions painful.
Beyond the deadlock fixes, there's a solid batch of crash patches covering cargo pod clipping, space-age save file loading, and a particularly nasty one triggered when specific entities die without a source. Scrolling blueprint books in multiplayer also got fixed, which matters if you're managing large libraries across high-latency connections.
On the scripting side, modders get new reads for quality modifiers, supply area distance, inventory size, capacity, energy usage, plus crafting speed and module slot bonuses. The API documentation website now has fulltext search too, which is useful for anyone digging through the docs. Check the full notes below for the complete list.
Full Patch Notes
▲ Buff✓ Fix◆ TweakBugfixes
- Fixed a clipping issue on cargo pods attached to rockets more
- Fixed that inserters would deadlock if ammo spoiled while mid-swing towards a turret. more
- Fixed that rocket silos could deadlock due to mod changes. more
- Fixed a crash when specific entities are killed without a source. more
- Fixed that time passed wait condition wasn't reset when manually pressing go-to button to the shattered planet while being stopped at a space location. more
- Fixed that scrolling personal library blueprint books in multiplayer latency did not work correctly. more
- Fixed a desync related to custom input events and in_gui flag. more
- Fixed an issue with script-disabling logistic points connected to orbital logistics. more
- Fixed a crash when creating a loader with stack size override. more
- Fixed rich text tag being accessible through user input. more
- Fixed a crash when loading space-age save files with space-age prototypes removed but space-age flags enabled. more
Scripting
- Added LuaEntityPrototype::quality_affects_supply_area_distance, LuaEntityPrototype::quality_affects_inventory_size, LuaEntityPrototype::quality_affects_capacity, LuaEntityPrototype::quality_affects_energy_usage reads.
- Added LuaEntityPrototype::crafting_speed_quality_multiplier, LuaEntityPrototype::energy_usage_quality_multiplier, LuaEntityPrototype::module_slots_quality_bonus reads.
- Added LuaEntityPrototype::drops_full_belt_stacks read.
- Added additional reads to LuaSpaceLocationPrototype.
- Added LuaEntityPrototype::uses_quality_drain_modifier read.
- Added LuaFluidPrototype::visualization_color read.
- API documentation website now has fulltext search (online version only).
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Written by
Nathan LeesGaming journalist and founder of XP Gained. Covering patch notes, breaking news, and updates across 160+ games.
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