The arm64/factorio binary is only available through Steam; it is not (yet?) included in the Linux tar.xz release on the Website. This would be amazing to have available without Steam.

I have not had success installing Steam on a Raspberry Pi, since that is a i386-only application. It is ...

0.000 Initializing Steam API. (...)

This snippet from the log does not contain any error.
Glad you sorted it anyway!


Wait are you blind!? Sure it's not an error but the is a HUGE, GLARING 2.1.15 out there! I said like thrice that it's a 2.1.17 download! It's PACKAGING AN EXECUTABLE FROM ...

Update: I managed to get the 2.1.15 executable to run under Asahi Linux with SDL_AUDIODRIVER=pulseaudio. The internal changelog also says it's 2.1.15, despite the steam release saying it's 2.1.17.

Thanks for the native arm64 build anyway!

pioruns wrote: Thu Sep 03, 2026 10:42 am Does it launch though?

Of course it doesn't. You need a file to launch.

0.000 Initializing Steam API.
[S_API] SteamAPI_Init(): Loaded '/home/hqm/.local/share/Steam/linuxarm64/steamclient.so' OK.
Setting breakpad minidump AppID = 427520
SteamInternal_SetMinidumpSteamID: Caching Steam ID: 76561198165610669 [API loaded no]
0.000 2026-09-03 13:08:42; Factorio 2.1.15 ...

I installed and ran Factorio 2.1.17 on Asahi Linux running arm64 version of Steam. The very first line of log it printed is:


0.000 2026-09-03 13:08:42; Factorio 2.1.15 (build 87324, linux-arm64, steam, space-age)


It hangs later. I assume it's from the version mismatch.

EDIT: Also, the bin ...

How did you download it? From steam? I tried to download the Linux package from factorio.com and it doesn't have the AARCH64 executable.

EDIT: got the file from Steam. It didn't work:
- The window title says 2.1.15 despite being from a 2.1.17 install
- It hangs on startup

I'm on Asahi Linux ...

One the main benefits to open source is to allow a community of people to maintain and improve the codebase. In this situation, Factorio is largely a finished product that works incredibly well and has an incredibly small number of remaining bugs that Wube seems to tackle quickly. I don't see the ...

"Where you look" does make some difference. It's confirmed in 2.1 and I strongly suspected it did in 2.0. Factorio is deterministic but view panning is significant.

2.1 added a feature that makes enemies move and fishes swim inside your remote view. Most likely, that means you can activate an ...

Just to be sure, I rechecked the period of the RNG setup, it's 2147483647*536870911*268435455, i.e. (2**31-1)*(2**29-1)*(2**28-1), roughly utilizing the full 88-bit state. There isn't a period-related weakness.

I was thinking on predicting enough future states quick enough so that they can be used ...

Since items are quality-tiered, I suggested once to have (some) tech quality-tiered too. Quality tech has scaled bonus values, have separated levels, and can only be researched with bottles of the corresponding quality. Like having Legendary Mining Productivity give +25% productivity.

Could keep it ...

Very interesting idea, but I wonder if getting full control over RNG is feasible at all. It might make more sense to use approximate knowledge of the RNG state to increase quality results, on average, instead of aiming for perfect results.
I'm thinking something like counting cards in blackjack ...

+1 on fixing. It's more inconsistency than balancing to me, and it's not just concrete. At least battery and rail are also affected.

I fired up ghidra and researched for random number manipulation possibilities again in 2.1, and found interesting changes. In short, the global quality / additional product RNG is now shared by much fewer, and much more predictable things. And with the addition of universal signals, TAS-style random ...

I remember worms on shore spitting on my island base for no reason in 2.0, but in 2.1 they seem much more peaceful:

https://i.ibb.co/5ggrM0zj/a.jpg

The miner above is in the nearby worm's range (it got spat on when I was constructing it). But when it's kept running, the nearby nest just ignores ...

When EM plant is full, then recycler starts to accumulate the stuff it can't put in into its own slots.
These ones can be extracted via inserter into a side buffer.
It still can clog, since chests are finite, but the ~10K chip buffer is enough to make it quite rare.

If you really want to avoid ...

For upcycling blue chips you can do: quality on recyclers, assemblers or both.

While you are below 300% productivity, it's better to hit 300% with modules, so you have to put quality modules on recyclers.
Once you reach 300% productivity on assembler, you can put some quality into assembler as ...

As in the title, I'm rebuilding Gleba from an old save and found that I can't remove a belt behind trees that I'd rather keep while I'm still rebuilding.

You don't put quality on processing units once they hit 300% productivity. So if you did 300% with -20% speed, it's going to look the same as 300% with 125% speed and so on because you just print 4 chips per recipe.

Even then it isn't a free lunch though because the ratio of parts coming back ...

It was just one example out of many giving you both (copper and iron) base resources and which can be created in cryogenic plant (meaning there is 8 + 4 modules in one loop). Roughly speaking EM plant, biochamber or foundry gives you 2 "free" module slots because its productivity is equivalent of ...