Crucible's pressure forge, which uses steam as its energy source, also has this issue. In the attached save, the pump separating the steam turbines from the pressure forges can't be replaced with pipes.

+1

Rigor Module would definitely benefit from this this. The recipe-level tooltip that Rigor Module uses visible in the screenshot MeteorSwarm attached; it works, but it'd be more straightforward to have the tooltip on the product itself.

This could also benefit PlanetsLib, which adds some recipe ...

+1

Before recommended dependencies were added, there was no need to combine "~" with any other modifier; the main use of optional and hidden dependencies is to define load order. But recommended dependencies signal something more specific, giving them more usecases. This feature would fix a ...

The description of ignored_by_productivity for both ItemProductPrototype and FluidProductPrototype incorrectly states, "This value is ignored when allow_productivity is false." This is wrong, because it's also relevant for products in a any recipe that can be made in a machine with base productivity ...

+1
https://forums.factorio.com/viewtopic.php?t=129651 [Moderator note: merged]

You don't need runtime scripting to get passable connection graphics though. You can use 'pipe_covers' in the heat energy source definition, which can work pretty well: https://gitlab.com/jfletcher94/factorio-mods/-/blob ...

Wow, fixed in less than an hour

2.1.11

The new "not-in-bonus-gui" entity flag does not prevent entities from appearing in the bonus GUI. (Edit: Factorio version 2.1.11)

When a module is blocked from being used in an entity by the entity prototype's allowed_module_categories, and a player tries to insert it into that entity, they get a message saying "<module> can't be used in <entity>". But when a module is blocked from being used in a recipe, and the player tries ...

+1

It would be very useful to have some way to preserve external wire connections when manipulating blueprint entities. I have two use-cases: always copying ammo inventory for a modded turret; and "sanitizing" blueprints (replacing hidden variants of entities/recipes with their regular versions) so ...

What a very stripped-down version of this, something like a "spoil_type_localised_name", which just allows having custom text replace "Spoils into" but doesn't have any extra interactions? It'd presumably default to the vanilla "Spoils into". Even without any other functionality, I think this would ...

Okay, I added an API to Item Request Proxy Events to register an item prototype so that if an item of that type spoils inside an entity, it'll fire an "item-spoiled" event (with the entity as part of the event data). This should obviously be used judiciously, but for e.g. modules spoiling in an ...

+1

BraveCaperCat wrote: Mon Jun 29, 2026 3:34 pm You're forgetting about when modules spoil, either into other modules or into regular items, which can change the module inventory.

Ah, you're right! I wonder if that's also possible to do automatically with script triggers and spoil_to_trigger_result?

Detecting when modules change can be done with the current modding API. Modules can only be changed by a player manually moving them, by item request proxies ("ghosts"), or by scripting.

For players manually placing/removing modules: a player can only change modules for an entity if it's their ...

It's not a perfect solution, but I made a mod, Tooltip Library, to handle a similar usecase. If used correctly, it has very minimal UPS cost.

I made a utility mod for item-request-proxy events: https://mods.factorio.com/mod/item-request-proxy-events

Okay, I just figured out that you can get events for item-request-proxy created by:

* Adding a created_effect with a "script" trigger item to the item-request-proxy prototype
* Subscribing to the on_script_trigger_effect event and filtering by effect_id

+1

This would especially useful for item-request-proxy entities created via the upgrade planner. There are only a few ways that an item-request-proxy can be created, and for most of them there are workarounds you can use (e.g. checking players' selected and opened ). But when an item-request-proxy ...

+1

I've encountered situations that would benefit from this as well, with entities and also recipes.

Uninstalling mods is probably the most common place where a feature like this would be useful. But it's also possible from changing mod startup settings, adding a mod, or anything that can change ...