Download
Free, about 67 MB, installs in a few seconds. No admin rights needed.
Windows
- Version
- 0.3.1
- Released
- 29 Oct 2026
- File
NULLSPARK-Setup-0.3.1.exe- Size
- 67 MB (67,389,952 bytes)
- SHA-256
87fef81149b70eba23c4302778b77bdaf690b923842ec94d78e8207b83969952- Needs
- Windows 10 or 11, 64-bit
Couldn't load the latest release info just now, so this shows version 0.3.1 from when the page was made. There may be a newer one: try reloading.
Before you install
What you need
- System
- Windows 10 or 11, 64-bit. Microsoft Edge WebView2, which both already have.
- Account
- A Microsoft account that owns Minecraft: Java Edition. There's no offline mode.
- Memory
- 8 GB RAM is comfortable; the game gets 4 to 8 GB of it (you choose in Settings).
- Disk
- About 200 MB for the launcher and Java, plus 500 MB to 1 GB per Minecraft version you play.
- Internet
- For sign-in and the first launch of each version. After that, mostly for mod updates.
"Windows protected your PC"?
Windows says it's unrecognized
That blue screen is Windows SmartScreen. It shows for programs that are new and not signed with a paid code-signing certificate. NULLSPARK is both of those right now. It doesn't mean anything was found in the file.
Click More info, then Run anyway. You only see it once per version.
If you'd rather check first, compare the file's fingerprint with the SHA-256 above. In PowerShell, in the folder with the file:
Get-FileHash .\NULLSPARK-Setup-0.3.1.exe
The Hash it prints should match, letter for letter (capitals don't matter). If it doesn't, don't run it; download it again from this page.