I'm a proponent of per-game shortcut behavior because it just blows imo that you join one random multiplayer game and have all the buttons unlocked on all your saves, crap that you have no idea what it is because you never researched it yourself. When I was a new player I had to figure out how to ...

... thing again but it did not crash.
I reproduced the setup in the editor and tried multiple times but could not reproduce the crash.

Extra infos
it was during a multiplayer game with another player (and I was not the host)
we have a pretty big latency
mods being used: factorio_BYb2YqbZHQ.png

... That record may still be in preview generally, but not in this event.) Thanks for the assistance in debugging this!

Note for future readers: Preview means that it's a blueprint or book from a player's library that hasn't been loaded to the game state yet, so usually seen in multiplayer games.

... channel, Bilka asked for a forum post to be made about this issue. Link to the original discord discussion: here )

We received the following multiplayer crash report:

09-11-2025, 14-34-14.png



Upon analysis, we found the crash is occurring in the `on_pre_build` event for a blueprint where ...

Ok, I changed it so it won't show anything while loading.

I know it has been a while, but these Ammo Alerts turn into a "boy who cried wolf" situation in multiplayer

When one of your friends decides to use mixed quality ammo IN ADDITION to mixing yellow, red AND green ammo for some brainforsaken reason. There is FIFTEEN TYPES OF GUN AMMO ON THEIR BELTS ...

I suppose you're right that it does line up. Thanks very much for your help and support!

jon1467 wrote: Sun Sep 07, 2025 8:08 pm Sorry to be persistent, but if what you're saying is the case, why would there not be a phase where I had 30 fps, then 20, then 10 etc.

If you read the topic I linked it explains exactly that.

Sorry to be persistent, but if what you're saying is the case, why would there not be a phase where I had 30 fps, then 20, then 10 etc. Until last week I was still getting 40 fps, which is the max as I have it capped manually for battery life, and then I'm suddenly getting 5. What would have changed ...

... for people to join me for some co-op fun. I’ve played through the game a couple of times solo, but this time I’d love to experience it in multiplayer.

I’m located in the EU, so ideally looking for players in a similar time zone for easier coordination. All experience levels are welcome ...

... VM. Gets this error instantly upon starting up the binary. Hoping to get assistance with this as it's currently my backend for playing on multiplayer, and with Steam updates it's a mild pain, to say the least, to keep it working and reverting back.




[root@tailscale-arch-factorio saiyaken ...

... sales pitch and link!

-----------------

Factorio Legion! We are a community of Factorio players specifically specifically focused on mods and multiplayer! We run 24/7 Factorio servers and start a new game each month.

Season 1 - Explodium Central (ongoing)
Mods unlocked/mod showase, official ...

I have encountered constant Factorio crashes when loading any save (both single and multiplayer). The game works stably in the main menu, but crashes some time after the world starts loading (from a few seconds to a minute). The crash is absolutely "silent" - the game just closes without any error ...

It is a gradual decrease, until the point you cannot keep up with the server.

Hi, thanks for your reply. Your conclusion does seem likely, but I'm confused about why this would happen suddenly? The save has been increasing in complexity over the course of a year. The two saves I've provided are about 55 and 60MB. Wouldn't you expect to see a gradual decrease in performance ...

Thank you for your response. I did not realize it was for player made mods.

Until this point you were able to keep up, but the map got bigger and your machine is now too slow for that load and you are falling behind.
If you are in contact with the host, they could slow down the game for you to keep playing, see 68653.

... So rather than a gradual decline in performance as the factory grows, it's gone off a cliff in a matter of days in a year long game.

It's a multiplayer game, so I don't have a complete understanding of what's changed recently. I do however suspect that there's some specific change that is ...

It could be the playtime, if your friend wasn't present on the map more than a certain % of time, i think 50 then the achievement can't be unlocked for that person
It's in the game to make it so you don't unlock every achievement by joining a random multiplayer very late game once.

Hello, I started a multiplayer game with a friend without any MODs. I completed the achievement "Mecha Armor MKII Full of Legendary Elements." I received the badge.

My friend built a second legendary mecha armor MKII. He didn't receive the achievement or the badge. However, we did create a second ...