Support

Junkyard Astronauts · Windows and macOS · Steam

Ask a person

One person makes this game and the same person answers the mail. Write to muddermister@gmail.com and you will get a human reply — not a ticket number.

It helps enormously if you say:

Windows or macOS, and which version
What you were doing when it went wrong — building, walking, launching, joining a friend
Whether it happens every time or happened once
The log file, if the game closed unexpectedly (where to find it is below)

Where your saves and logs live

Everything the game remembers about you sits in one folder on your own computer. Nothing is uploaded anywhere.

macOS — ~/Library/Application Support/Epic/JunkyardAstronauts/Saved/
Windows — %LOCALAPPDATA%\JunkyardAstronauts\Saved\

Settings are under Saved/Config and crash logs under Saved/Logs. Deleting the Saved folder resets the game to how it shipped, which is also the first thing to try if the options screen is behaving strangely. Uninstalling through Steam removes the game; this folder stays until you delete it.

Playing together

Junkyard Astronauts is 1–4 player co-op. One player hosts a yard and the others join it; there is no dedicated server anywhere, and nothing about a session survives it.

Over Steam — the host starts a session and invites friends through Steam. Traffic is carried peer-to-peer by Steam's own networking, so neither of you needs to open a port or know the other's address. Steam has to be running.
Over a LAN — with both machines on one network, the JOIN screen takes the host's address directly. This is also the path when Steam is unavailable.
Both machines must be on the same version of the game, or they will not connect.
If a join fails on a LAN, the usual culprit is a firewall prompt that was dismissed the first time the game ran. Allow the game through and try again.

Single-player needs no connection at all and works with the network off.

Controls

These are the defaults. Every one of them is rebindable — Options ▸ Controls holds 14 actions per device, and the on-screen hints read from your bindings, so a remapped key is never wrong on screen. Controllers are fully supported, with Xbox, PlayStation and Steam Deck button labels.

In the yard
Move / sprint / jump	WASD · Shift · Space
Grab salvage	LMB or E
Draw or stow the yard tool	RMB — LMB fires while armed
Ask someone to collaborate	C, then Y or N to answer
Emote	B
Camera	Mouse look · wheel to zoom
Pause and options	Esc

Build mode
Enter or leave build mode	Tab — entering it stows your weapon
Choose a part	1–6 by category, in build order. Press a number again to cycle within it
Place / remove	LMB / RMB
Spin and tilt	Q and E · R and T
Raise / lower	Z and X
Placement mode	G cycles socket, grid and free
Undo	U
Mark the rocket finished	Enter

Launching is a ceremony. Carry the finished rocket to the pad in the middle of the yard, press E to set it down — that claims the pad and calls the range clear — then aim at the big red button and fire.

System requirements

Windows — minimum
OS	Windows 10 64-bit (1909 or later)
Processor	Quad-core Intel or AMD, 2.5 GHz
Memory	8 GB RAM
Graphics	DirectX 12 / Shader Model 6 capable — GeForce GTX 1060, Radeon RX 580 or Intel Arc A380
DirectX	Version 12
Network	Broadband for online co-op
Storage	2 GB available

Windows — recommended
OS	Windows 11 64-bit
Processor	6-core, 3.5 GHz
Memory	16 GB RAM
Graphics	GeForce GTX 1660 / Radeon RX 5600 XT or better
DirectX	Version 12
Storage	2 GB available on an SSD

macOS — minimum
OS	macOS 13 Ventura
Processor	Apple silicon, M1 or later
Memory	8 GB RAM
Graphics	Integrated Apple GPU (Metal 3)
Network	Broadband for online co-op
Storage	2 GB available

macOS — recommended
OS	macOS 14 Sonoma or later
Processor	Apple M2 or later
Memory	16 GB RAM
Storage	2 GB available

Intel Macs are not supported. The Mac build is compiled for Apple silicon and has only ever been run there. If you are on an Intel Mac, do not buy it expecting it to run.

Integrated graphics will run the game — it detects one and starts itself on LOW quality. You can raise that in Options ▸ Graphics if your machine has more to give.

Things people ask for that are not there

Cloud saves. None. Your saves live on the machine you played on.
Achievements and online leaderboards. None. The altitude board runs for the length of a shift and is local to that session.
Text or voice chat. None. Use whatever you already talk to your friends on.
Languages other than English. Only English, for now.
A competitive versus mode. Not a mode. Shooting parts off your crewmates is a thing you do inside co-op.

Purchases and refunds

The game is sold by Valve on Steam, and every purchase, receipt and refund is handled there under Steam's refund policy. Start at help.steampowered.com — refunds are not something this end can process. If the problem is the game rather than the purchase, write to me anyway; I would rather fix it than have you ask for your money back.

Privacy

The game collects nothing about you. The whole story is on the privacy page.