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Nightly Builds

This is the directory of our latest and greatest builds. The best, most recent one is at the top.

 Recent Builds  Win32
 Win64  Linux64  Mac Download Download Download - Download Download Download - Download Download Download - Download Download Download - Download Download  Download
 - Download Download Download - Download Download
 Download -  Download  Download  -  Download  Download  -  Download  Download  Download  -
 GDrive  GDrive  Link  Link

Make sure you have CrashSubmitBehavior set to 1 in Debug Settings, so we can fix your crashes!

For older windows alpha builds from our now retired bamboo, follow these steps:
  1. Go here
  2. Click on whatever build you want to try with a green check icon
  3. Look for the Installer and download/run it.
Visit this page for even older alphas (that no longer work on SL).


  • Why does the URL say alchemy viewer?
    • Singularity and Alchemy share a lot of development infrastructure, including our build system and some of our engineers!
  • Why isn't there a better way to view these builds?
    • We're focused on the viewer right now, so we haven't yet made a site for pretty presentation of these.
  • What is Bamboo? 
    • Bamboo is a build system that allows us to get new builds made and deployed to users like you, automatically, shortly after we send our changes to GitHub (where all our source code is published).
  • This all seems scary, how can I trust it?
    • You're on our site right now, if you can trust our words, you can trust the nightly.