Official patch notes · Updated 2026-09-22
Check the current patch, find the change that affects your factory, and open the guide that needs your attention.
Quick answer
v0.5.7 — Update #4, released September 14, 2026 (UTC), is the latest shipped patch in the official announcement feed checked September 22. It changes Pipe connections and copying, fixes several causes of stopped buildings, and corrects Lava leakage through Advanced Filter Walls.
The Steam store lists Lantto Games as developer, Hooded Horse as publisher and August 13, 2026 as the Early Access release date. The developers say the game is fully playable in its current advertised scope while further content and refinements are planned.
New Pipes do not automatically join adjacent Pipes. Start or end on an existing tile to extend its network; building across a line creates a Pipe Bridge. The overlay shows the last transported liquid's color.
Connect and diagnose the liquid routeIn Pipes Mode, normal selection tools now select, move and copy/paste Pipes. Alt+C selects structures and Pipes together. Undo includes Pipes.
Copy a combined factory layoutLava no longer leaks through Advanced Filter Walls. The update also fixes wrongly paired Conveyor Portals after Ctrl+H mirroring; open Doors now allow Aerokinetic Fan airflow.
Review the transport stageRead the full official Update #4 announcement. The checks here are editorial applications of the released changes.
v0.5.7 fixes multiple unrelated causes of buildings stopping or failing to propagate. The developer explicitly says some errors may remain; this is not a confirmed fix for every Aura Extractor or Kinetic Press symptom.
Kinetic Press input and blockage checks · Aura production-stage checks · Sandustry Discord
| Changed system | Shipped change | Your next check |
|---|---|---|
| Aura Extractor | Removal now buffers crystals and restores them as Auralite after rebuilding. | Review the corrected relocation guide. |
| Lava | Density is 200; it destroys Fluxite, Redsoil and Strataform terrain. | Inspect containment and nearby terrain. |
| Cold Thermal Buffer | At negative temperature, Lava gives less heat and becomes Cinder. | Check the buffer temperature and returned solid. |
| Critters | Petting temporarily boosts capabilities; Voltblub also gains a general Energy boost. | Check space around water-producing Lumlings. |
| Flowers | Shooting, digging or blocked growth can return seedlings to Wet Seeds. | Contain growing seedlings; no faster growth rate is promised. |
| Workshop mods | The mods branch moves to 0.5.6 with additional API hooks. | Recheck branch compatibility. |
These are selected changes, not the complete changelog. Read the official Update #3 announcement for the full fix list. The suggested checks are our editorial response to those changes.
| Date (UTC) | Release / announcement | Useful change |
|---|---|---|
| August 28 | Modding & What's Next | Sandkit API documentation and experimental compatibility branches. Its statement that mods remained on 0.5.2 was superseded on September 3. |
| August 19 | v0.5.5 — Update #2 | Clearer Aura targeting, more crash diagnostics, animated instruction previews and Alt+Enter fullscreen switching. |
| August 16 | v0.5.4 — Update #1 | Edit a Filter using its overlay label or “Edit last placed”; fixes for Tier 5 progression and red blocks. |
| August 14 | v0.5.3 — Hotfix | Logging, objective clarity, memory improvements and a possible startup workaround. |
The September 14 announcement describes Update #4 as likely the last minor patch before the first large content update, while allowing for smaller hotfixes. It gives no release date for that content update. Treat this as a development plan, not shipped content.