Mac and Steam builds are available for testing

Hi all,

Two announcements:

  1. We have a Mac desktop build available for testing.
  2. Steam Beta keys are up on Humble for Kickstarter supporters for testing.

Both the Mac build and the Steam edition of Prismata are still very much in development, so you may encounter bugs or crashes. These are test builds! That said, they’re far enough along that they should work for most users.

Our current plan over the next couple of days is to make sure these builds are working well, then switch on achievements, and then mass email all Prismata supporters to notify them of the update. Those mass emails generate a lot of traffic, so we’re hoping to iron out all the major bugs by the time they go out!

If you encounter any problems, you can use the in-game bug reporting system or contact Your feedback is super appreciated!


Mac Build

Mac users who want to test out a desktop version of Prismata can now do so. A couple of caveats:

  • Mac OS X v10.7 or higher is required.
  • We’ve observed a number of problems on older Macbooks related to video memory. These can range from graphical glitches to full-on crashes. If you encounter such problems, you may be better off sticking with the web version for now.
  • The AI is not yet supported. Prismata will crash if you try to play against the bots or play most missions. Again, stick with the web version for now if you want to do that.

An installer is available here if you want to give the Mac build a try:


Steam Keys

We’ve uploaded one Steam Beta access key to Humble for each player who supported Prismata over Kickstarter and Paypal. These keys allow you to install a “Steam Beta” version of Prismata that provides access to some of Prismata’s Steam features, including the following:

  • Steam overlay features
  • Steam friends who play Prismata will be automatically added to your Prismata friends list
  • Steam wallet support for the Prismata store


The easiest way to get your key is to enter your email address into the Humble Order Resender here (it needs to be the same email that you used to support Prismata over Kickstarter or Paypal). You can also follow BlaqkAngel’s instructions here.

Some Q&A about the Steam version:


Q: Do updates work via Steam?

Yes. We have updates all set up so that whenever we deploy a new version of Prismata, it simultaneously becomes available on web, desktop, and Steam versions. It sometimes takes a few extra minutes for Steam to make the latest version available, but your software should update automatically.


Q: Is Mac supported on Steam?

We did enable the Mac build in Steam, and it appears to work, though with the same caveats discussed above (no AI support yet, and some known graphics bugs). Feel free to give it a try!


Q: Do I have to sync my Steam account to a Prismata account?

Nope. Prismata only uses Prismata accounts. Steam accounts only matter for the purchases in the store or the Steam friends feature.


Q: Does Lunarch care whether players use the Steam version?

It’s up to you! All versions of Prismata connect to the same servers and offer all the same features. If you have lots of friends on Steam and want to spam them all with notifications whenever you play Prismata, we certainly don’t mind!


Q: What about purchases? Does Valve take a ton of the proceeds if we make purchases using the Steam version?

The Steam version requires you to make purchases through Steam. We don’t publicly discuss our arrangements with Valve concerning the revenue split for purchases made through Steam. If you make purchases using the web or non-Steam versions, Lunarch gets everything (minus a negligible amount of credit card/Paypal fees).


Q: Are purchases transferable between the Steam and non-Steam versions of Prismata?

Yes. For example, you can purchase Shards for your account using Paypal via the website, and then spend those Shards in the Steam version.


Q: When will achievements be switched on?

Almost immediately. We’re readying a client update that will enable them, and we’ll deploy it as soon as we’re confident that the Steam version is behaving OK. Not all achievements will be initially available; some will be added later.


Q: Do I need to use the Steam version to get achievements?

Nope.  Achievements are supported in both versions. You can collect and equip Prismata achievement badges regardless of Steam. That said, if you want your achievements to show up in Steam, you need to unlock them while connected to Steam!


Q: I’m having a problem!

We love feedback and benefit a huge amount from user-submitted bug reports. Use the in-game feedback form or contact us via


About Elyot Grant

A former gold medalist in national competitions in both mathematics and computer science, Elyot has long refused to enjoy anything except video games. Elyot took more pride in winning the Reddit Starcraft Tournament than he did in earning the Computing Research Association's most prestigious research award in North America. Decried for wasting his talents, Elyot founded Lunarch Studios to pursue his true passion.