TL;DR Add an option to blueprints so they will rotate 4 ways, 2 ways, or not at all. Ditto for flipping, similar to how some blueprints already cannot be flipped due to entities like train stops. What ? When editing a blueprint, near the grid options there would be one additional three-value option...

Following up to mention that the wiki docs at https://wiki.factorio.com/Application_directory are in pretty awful shape.

Can we get that expectation/constraint mentioned in the prototype docs?

In a reddit thread about using a simple circuit to create priority merges, the topic shifted to dense rail layouts, particularly where crossing rails are too close together to insert a signal. Someone pointed out that the game Sweet Transit has a novel solution to this. Their rail network implementa...

I've fixed the drill so it won't delete the last item it is trying to output if mined before it happens (for the next release). Other changes can also be done but that is the root issue that I'm seeing. That might help with robot256' use case, but it doesn't address mine. I need to detect the ore s...

I have wanted this behavior in the past.

I also want "Q" when hovering the hotbar to put the item on the cursor.

If there's any fluid at all in the storage tank, which the alt mode icon suggests there is, then the pump should be able to put the last unit(s) of fluid into the fluid wagon. If you have a save showing this situation, I recommend posting it as a bug report.

4lane BufferedSuperCompact

For a right turn, the inside lane can only exit to the outside lane and vice versa.
For going straight or a left turn, the inside lane can only exit to the inside lane, and the outside lane to the outside lane.

it doesn't fit the forum as all intersections on here allow every lane to go in every direction. I, too, was shocked to discover that this is not true. It comes up occasionally on Discord. Apparently a lot of folks have been contributing intersections without that trait for a while now, and the yea...

The part that would be truly confusing to users is caused by allowing those settings to be used in earlier data stages after a restart. What if data.lua makes steel chest with 48 slots and settings-dynamic adds a setting claiming steel chest has 100 slots? It's hard to know how to respond when you'...

It sounds like you simply want one int setting for every (not blacklisted) container. You can simply do that with a loop. No, you can't. You don't have access to data (where the container list exists) during the settings stage, and you can't create settings during the data stage. Making it possible...

About once a week I see someone on the Discord in #mod-making asking how to make a dynamic group of settings based on some game data, such as one setting for each turret or tile. Sadly we have to shoot them down every time, and a few folks end up implementing something like a string setting with a d...

The sprite for unknown-item is a black question mark. This looks fine in the GUI where it will be backed by a crisp grey square. It looks terrible in Alt mode where it will appear on top of an entity with a black gradient surrounding it. A white outline is one potential way to resolve this.

I often enable the debug tile grid when developing blueprints. A minor annoyance which occasionally leads to mistakes is that both the colored lines for rail blocks and the red/gold/green lines for power and circuit wires can be completely hidden by the grid when they line up, which is often the cas...

When selecting a signal, such as for a filter or combinator, the currently/previously/already selected signal should be highlighted, and pressing E or clicking Set should preserve that selection. This is the case in approximately half of places, and I refer to it below as "works". In the o...

If I try to load a save that used a mod that I don't have loaded, I'll get prompted to sync mods. That sync dialog will also include disabling mods I have loaded that weren't loaded when the save was created. However, if I have some new mods loaded and load a save without them, that goes through sil...

As I consider rewriting my mod that changes day/night length over time, I'd really appreciate having this functionality instead of having to work around edge cases.

If you move a rocket silo (with console commands or mods) while the rocket launch animation is playing, the rocket doesn't move with the silo. Also, for some moves (e.g. moving the silo to the right) the overlap/mask of the sprites glitches and part of the rocket is obscured by part of the silo. Scr...

In the GUI I can check "Snap to grid" on a blueprint and the width/height will be calculated automatically while the positions of the entities within the blueprint are shifted to put a corner of the blueprint at the origin. I'd like a way to trigger one or both of these behaviors (or at le...