Sandustry update #2 (v0.5.5) is a stability patch: deeper crash logging, animated instruction previews, Alt+Enter fullscreen, and a macOS mouse workaround.
TL;DR for players
Update #2 continues the stability work that the v0.5.3 hotfix started, and adds a small cluster of quality-of-life fixes on top. The most visible change is that instruction videos are no longer videos — they are animated images, which resolves a set of GPU crashes and a long-standing annoyance for anyone recording. Mac players get a workaround for the stuck right mouse button. Everyone gets Alt+Enter fullscreen toggling and an Aura Extractor that explains itself.
Changelog
Significantly more logging was added to help diagnose and debug crashes, with log paths documented for Windows, macOS and Linux. On top of that, optional Crashpad diagnostics were introduced. These are opt-in by design: crash dumps can contain sensitive information, so the developer will reach out to affected players individually about enabling it rather than switching it on for everybody.
Instruction videos are now animated images rather than video files. This fixes GPU crashes and stops OBS from losing its capture hook when you hover a preview — a problem that made recording tutorials genuinely painful. The trade-offs are stated plainly: slightly reduced quality and a larger install size.
Alt+Enter now toggles between fullscreen and windowed mode, and the game remembers the last monitor you used, which matters on multi-display setups where it previously had to be re-chosen each session.
A workaround was added for the right mouse button getting stuck on macOS — the failure mode players will recognise is the Vacuum spraying forever. It is explicitly a workaround; a proper fix is still pending.
Accidental softlocks caused by using the radial menu during the tutorial are fixed, closing one of the easier ways for a new player to strand a save.
Aura Extractor controls were improved with clearer hover guidance and swarm targeting indicators, so the machine's behaviour is legible from the UI rather than something you infer from watching it.
What this means for your factory
There are no recipe or material changes here, so nothing in an existing build needs revisiting. The gains are in reliability and comfort.
Crash reports are now far easier to diagnose thanks to the expanded logging and the optional Crashpad diagnostics, which means the patches that follow are better aimed. Streamers and recorders benefit most from the instruction-preview change: fewer GPU crashes, and OBS capture that survives hovering a preview, in exchange for a small quality and install-size cost. Mac players finally have a mitigation for the stuck-right-mouse-button bug, though it is worth knowing it is not the final fix. Fullscreen and windowed switching collapses to a single Alt+Enter shortcut with monitor choice persisting between sessions. New players can no longer softlock themselves through the tutorial's radial menu. And the Aura Extractor is easier to operate correctly now that its hover guidance and swarm targeting are visible.
If you are running mods, note that this is the version the experimental modding branch was later built against.
Affected guides and materials
Nothing material-facing changed, so this one touches the general and modding material only.
The official post is linked below; the changelog above is paraphrased rather than reproduced.
FAQ
What does Sandustry Update #2 change?
It is a stability and quality-of-life patch: much more crash logging, optional Crashpad diagnostics, animated-image instruction previews instead of video files, Alt+Enter fullscreen toggling, a macOS mouse workaround, and clearer Aura Extractor controls.
Does Update #2 fix the macOS stuck right mouse button?
It adds a workaround, not a full fix. The bug that left the right mouse button held down — the Vacuum spraying forever, for instance — is mitigated, and a proper fix is still pending.
Why did instruction videos change in Update #2?
They were converted from video files to animated images, which fixed GPU crashes and stopped OBS losing its capture hook when you hovered a preview. The cost is slightly reduced quality and a larger install.
Official post
This summary paraphrases the developer announcement for v0.5.5 — Update #2. Read the original at the official Sandustry news post .