Screenshots
Watch trailer on Steam ↗Signal Foundry
Justin Edwards · Published by Justin Edwards
30 achievements
Last updated 29 Sept 2026
A cozy idle game about reviving an abandoned deep-space refinery. Get the scanner running, dig up ore, build the machines that process it, and let your drones run the place while you're away. Two prestige layers, 30 achievements, a 19-track soundtrack, and no microtransactions, ever.
DJCTQ l
£5.29
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
£5.29
Price history
5 Sept 2026Lowest: £5.29 · Highest: £5.2930 Sept 2026
Indie, Simulation, Casual · 2026 · More £5 - £15 games
About this game
Wake up a sleeping refinery
Signal Foundry is a cozy incremental game set on a deep-space station that's been dark for years. You arrive with a flickering scanner and a pile of scrap to your name. From there you rebuild the place piece by piece: find ore, set up the machines that turn it into something useful, and watch a silent floor grow into a refinery that hums along on its own.It fits how people actually play idle games. Tinker with it for ten minutes on a break, or leave it running and check back later. Your drones keep working while you're gone, and a short welcome-back summary tells you what you missed.
What you'll be doing
- Scanning for ore veins, each one rolled with a quirk worth cataloguing.
- Routing ore through drills and silos so the line never backs up.
- Forging parts and research, then fitting modules to push output higher.
- Minding the reactor, since everything you automate pulls power and there's only so much to share.
- Recalibrating for Cores when you're ready to reset, then spending them on permanent upgrades.
- Following the Deep Signal into a second prestige layer, once you've dug deep enough to find it.
What's inside
- No microtransactions, no ads, no daily-login pressure. You buy it once and it's yours.
- Real offline progress, so closing the game never costs you anything.
- Automation you earn by playing, including auto-buyers and hands-off recalibration.
- An original 19-track soundtrack that loops while you work, with separate music and effects volume.
- 30 Steam achievements, Steam Cloud saves, and exportable save codes for your own backups.
- Number-notation and reduced-flashing options, because the small comforts matter.
System Requirements
Will my PC run this? →Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: Any x64 processor (2015 or newer)
- Memory: 4096 MB RAM
- Graphics: Any GPU from 2015 or newer; integrated graphics OK
- Storage: 300 MB available space
- Sound Card: Any
Recommended
Recommended:
- Requires a 64-bit processor and operating system
Supported Languages
English
Latest news
Patch NotesOfficial
Patch 1.0.2: auto-recalibrate fix
Fixed: auto-recalibrate could not restart your automation Thanks to Phraox for digging into this one. Recalibrating resets your routines, and that part is intended. The problem was that the early routines only unlock by running scans, cargo routes and fabricator cycles by hand, and the auto-buyers can't do those for you. So every time auto-recalibrate fired, it dropped you into a run that automation had no way to restart. You had to hand-start the station again every single cycle, which is the opposite of what auto-recalibrate is for. Now, once you've unlocked the auto-buyers (Logistics AI in the Core Shop, or Permanent Logistics in the Relic Vault), every fresh run starts with the basic crew already online: the scanner, cargo and fabricator routines, plus enough reactor power to run them. The auto-buyers take it from there and build out the rest on their own. If your station is stuck like this right now, it repairs itself the next time you load the game. Nothing is lost. Also fixed: jumping could show you the first-run intro screen as though you were a brand new player. Update size is about 2 MB.Read full article on Community Announcements (mcFluffypuffin)Patch NotesOfficial
Patch 1.0.1: Deep Protocols fix
Fixed: Deep Protocols was missing from the Automation panel Thanks to the player who reported this on the Community Hub. It was a real bug, and a bad one. The Automation panel was only ever drawing five routines. Deep Protocols is the sixth, so once the earlier five were unlocked it got quietly cut off the bottom of the list. The Efficiency advisor would happily tell you to train "Deep Protocols" while the panel showed no such thing. If you were relying on Auto-train, it kept buying the routine for you and you may never have noticed. If you weren't, you were stuck: Deep Protocols gates the Composite chain, the Composite Frame module, and the last two missions. All six routines now show in the Automation panel. Deep Protocols now appears as soon as it's relevant. First as a locked preview showing your progress toward a tier-10 vein, then as a trainable routine. On shorter screens (Steam Deck, smaller laptops) the panel now scrolls the next trainable routine into view instead of leaving it below the fold. Your save is fine. Nothing was lost and nothing needs redoing. Load your station and the routine will be sitting there waiting. If you already unlocked Deep Protocols through Auto-train, nothing changes for you. Update size is about 2 MB.Read full article on Community Announcements (mcFluffypuffin)
