Here are some (technical)references, about the lockstep : FFF-76 MP inside out

This is what i attempted to explain for the pieces i remembered, sorry if i butchered it

about the MP rewrite :

FFF-147 Multiplayer rewrite
FFF-149 Deep down in multiplayer

This i didn't even attempted x)

When a client logs into a server, the server talks to the client, sending it the map and the current state of the world that the client needs to know. Each client talks to the server, and the server talks to its clients. But crucially, clients do not talk to each other directly.

Factorio is not ...

... authoritative control that servers in a client/server game do.

The "catching up" that new "clients" have to do is just the result of this kind of multiplayer architecture.


This really clarifies why Factorio's multiplayer works the way it does.

Sometimes, it is frustrating trying to play with ...

... t need to do that work; they should simply receive information and send updates whenever changes are made.

This all presumes that "clients" are a ... authoritative control that servers in a client/server game do.

The "catching up" that new "clients" have to do is just the result of this kind of ...

... is already processing the entire factory in the background. Clients shouldn't need to do that work; they should simply receive information and send updates whenever changes are made.

Perhaps the game does exactly that due to the sheer volume of items and to maintain simulation accuracy—avoiding ...

... is already processing the entire factory in the background. Clients shouldn't need to do that work; they should simply receive information and send updates whenever changes are made.

Perhaps the game does exactly that due to the sheer volume of items and to maintain simulation accuracy—avoiding ...

... factorio , pausing the game when someone is joining makes it so no more inputs are added when a player is already trying to re-run a map to "catch-up', so the amount of work to re-run the history of the map doesn't increase at the same time as it is processed by the computer of the person joining ...

The intention would be to literally eliminate the download.

No pauses, no catching up, nothing. Just connect and play.

Feature Exists: Server owners can configure the auto_pause_when_players_connect option in server-settings.json . The entire Savegame must still be Downloaded, but the Server will wait while a new Client does so. The downside is that this pauses the game for everybody else on the server.

Good Luck!

... minutes—depending on the host's connection—for map downloads and "catching up".

I believe the game does this literally to run the map locally, minimizing data exchange between users after the initial login phase.
However, it is precisely this stage that makes the process of connecting to a ...

... t part of that line, and left myself vulnerable to bad faith actors catching me in a technicality!

I am slain!

And out of morbid curiousity


The situation where I've most commonly heard this use case is to add hysteresis to the on/off cycle of a backup power plant, to eliminate the extremely ...

... way because when the belt goes past the inserter and it would try to pick up the last item it would not get there quick enough to pick up the item before it moves onto the next belt segment. So the inserter aims for items it has a higher chance of catching up to before they are gone. Even with this a ...

... 3 methods have issues (passive providers cannot take items back, filled-up buffer chests doesn't share with other buffer chests, and storage chests ... zero if the supplies are needed.


I basically use storage chests for catching overflow on Fulgora, so trash doesn't go into the unfiltered storage ...

... what the Factorio RPG Sequel is going to be based on!? :twisted:

Catching memory issues like these in-flight is a tricky thing at best, since ... changes all the addresses, etc etc. I think it is incredible that an attempt is being made to fix broken save files…. Is an automated fix up tool next?

Maybe using a couple modified schimitt trigger or 2 buffer tanks you coud avoid clock setups ? To be fair you seem onto a more interesting way to do thans what I have achieved so far with them, so i'd be catching the opportunity to learn if you post a setup !


Interesting idea with the Schmitt ...

... running around killing biters with spidertrons, sometimes the spiders end up standing around for a quite a long time waiting for their own bots to actually repair them, because the job was already assigned to some bots that got left behind and now those bots are very slowly catching up with drained ...

... session, you can only blame them. If you weren't eligible to gain this achievement in the moment of finishing the game, there is also nothing we could do about that. Based on your reports, I have updated the achievement GUI to show these achievements as failed. It will be part of the next release.

... don't find it useful to do both "a selection of which chunk to pick up from space" AND "reprocessing" as usually i prevent my ships from ... system means your asteroid grabbers are going to actively lose time catching asteroid like "ice" when you need "iron" because you think reprocessing ...

Forgot to post a further update, sorry:
The slowdowns have already been fixed in one of the previous releases, apparently
They only happen very sporadically now, and require no reload so this issue might as well be closed.
Thanks for catching up, though!

... on that I was curious about.

2-8 fails to look good because it's catching less iron.
And in terms of ??? forges I'm thinking the mistake is ... what this seriously is).

If you go the other way with sticks it went up to 2.9 ips. Basically even though I'm getting back half as many plates I'm ...