Install FTL: Hyperspace on Windows manually
These steps are the same wherever you bought FTL.
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Steam settings
Section titled “Steam settings”Skip this if you did not buy FTL on Steam.
Two Steam settings will undo your work if you leave them alone. Right-click FTL: Faster Than Light in your library and open Properties.
Show me how to open Properties

Turn off Steam Cloud
Section titled “Turn off Steam Cloud”Under General, untick Keep games saves in the Steam Cloud. Left on, it restores outdated saves with broken state which can keep Hyperspace from launching.
Show me the checkbox

Turn off automatic updates
Section titled “Turn off automatic updates”Under Updates, set automatic updates to Only update this game when I launch it.
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Roll FTL back to 1.6.9
Section titled “Roll FTL back to 1.6.9”The Windows build of Hyperspace only runs on FTL 1.6.9. If Steam, GOG or Epic gave you anything newer (and they will have), roll it back first.
- Open FTL-Version-Rollback and choose Code → Download ZIP, then extract it.
- Copy the extracted contents into your FTL folder, next to
FTLGame.exe. That is usuallyC:\Program Files (x86)\Steam\steamapps\common\FTL Faster Than Light. - Run
rollback.bat.
Your original executable is kept as
FTLGame_orig.exe, so this is reversible. -
Install the Hyperspace binary
Section titled “Install the Hyperspace binary”Download
FTL.Hyperspace.x.xx.x-Windows.zipfrom the latest release and extract it. Inside you will find:- Hyperspace.ftl keep this for step 5
- README.txt
DirectoryWindows - Extract these files into where FTLGame.exe is/
- Hyperspace.dll
- lua-5.3.dll
- xinput1_4.dll
Copy the three files from that folder into your FTL folder, next to
FTLGame.exe. LeaveHyperspace.ftlwhere it is for now.On Steam, right-click FTL: Faster Than Light in your library and choose Manage → Browse local files. Steam opens the folder for you, which is safer than typing the path by hand.
Show me where that is in Steam

Bought it elsewhere? The folder is wherever you installed it. On Windows a Steam copy is usually
C:\Program Files (x86)\Steam\steamapps\common\FTL Faster Than Light. -
Set up a mod manager
Section titled “Set up a mod manager”You need a mod manager to patch
.ftlfiles into the game. Pick one. The rest of this guide follows whichever tab you choose.Actively maintained, reads the same mods as Slipstream, and can install Hyperspace for you.
- Download the build for your machine from the ftlman releases page. Windows users want
ftlman-x86_64-pc-windows-gnu.zip. - Extract the
ftlmanfolder anywhere you like. It does not have to live in your FTL directory. - If FTL is currently modded, revert it to vanilla first. Coming from Slipstream, that means opening Slipstream, unticking every mod, and patching.
- Run
ftlman. A Steam install is detected automatically; otherwise open Settings and paste your FTL folder into FTL data directory.
The original manager, unchanged since 2018. Still works, and worth keeping if a mod misbehaves under ftlman.
- Make sure FTL is vanilla before installing or upgrading Slipstream. Check
ftl.dat: roughly 270 MB, or 212 MB on GOG. Much larger means mods are still patched in. - Download Slipstream 1.9.1.
- Extract it to a folder you will keep. Do not run it from inside the ZIP.
- Java must be installed.
- Download the build for your machine from the ftlman releases page. Windows users want
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Patch Hyperspace in
Section titled “Patch Hyperspace in”Put the
Hyperspace.ftlfrom the ZIP into your manager’smodsfolder, tick it, and apply. Tick any other Hyperspace-based mods after it. -
Check it worked
Section titled “Check it worked”Launch FTL. About halfway through the loading screen, and again on the menu, a small version string appears in the top right. That is Hyperspace reporting itself, and it means the binary is loaded.
If your mod’s main menu comes up with no errors, you are done.
Hyperspace is now installed and ready to play. Everything below is optional.
Adding Multiverse
Section titled “Adding Multiverse”Multiverse is the largest mod built on Hyperspace, and it installs differently from everything else.
- Open the Multiverse release thread and scroll to DOWNLOAD RAW FILES (OTHER PLATFORMS, UPDATES, MANUAL INSTALL). Ignore the installer above it, that one is Windows-only and does its own thing.
- Download both files listed there, the Assets File and the Data File.
- Put both
.zipfiles in your mod manager’smodsfolder. - Patch them in this order, and nothing else:
- Tick Multiverse Assets first, then Multiverse Data
- Leave Hyperspace unticked
- Press Apply
- Enable ZIP support: Preferences → allow_zip, then File → Re-Scan mods/
- Tick FTL-Multiverse first, then any Multiverse-compatible add-ons
- Leave Hyperspace unticked
- Press Patch
Uninstalling
Section titled “Uninstalling”Delete Hyperspace.dll from your FTL folder. To go back to 1.6.14, delete
FTLGame.exe and rename FTLGame_orig.exe back to FTLGame.exe.
Removing the mod in your mod manager alone does not undo the install.