Support us on Patreon to keep GamingOnLinux alive. This ensures we have no timed articles and no paywalls. Just good, fresh content! Alternatively, you can donate through PayPal, Flattr, Liberapay or Buy us a Coffee. You can also buy games using our partner links for GOG and Humble Store.

Now that the huge update to Slay the Spire is live adding in The Watcher as the fourth character, Mega Crit Games have also updated their opt-in game engine upgrade Beta.

For a while now, they've had a "libgdx199" Beta available on Steam to improve the foundation the game is built upon. However, that's only compatible with save files from the previous major build. A new opt-in Beta "libgdx199.main" has been put up, which is compatible with the current version of the game.

LibGDX is a cross-platform open source Java game development framework, which also uses LWJGL (Lightweight Java Game Library). The Beta upgrades LibGDX from 1.9.2 to 1.9.9 which brings in a huge amount of enhancements for the game. Most importantly these:

  • Mapping support for much more controllers. Such as the Steam controller.
  • Improved display resolution recognition, preventing an annoying screen offset bug.
  • Screenshake support for non 16:9 resolutions.
  • Multi-monitor support, pick which monitor you want Slay the Spire to use from the Settings.

If you don't have an ancient computer, you will probably find the libgdx199.main Beta branch on Steam to give you a much smoother experience. For me, I can't go full-screen due to having two monitors unless I use this Beta with the LibGDX upgrade. It's not clear if/when they will move the stable version over to it. However, it's really great to see Mega Crit Games continue to improve the tech behind the game just as much as the gameplay.

Available from Humble Store, GOG or Steam.

Article taken from
5 Likes, Who?
We do often include affiliate links to earn us some pennies. We are currently affiliated with GOG, Humble Store and Paradox Interactive. See more here.
About the author -
author picture
I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly came back to check on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly.
See more from me
1 comment

14 21 January 2020 at 2:32 pm UTC
View PC info
  • Supporter
  • Top Supporter
I wonder if the same multi-monitor problems happen to KDE Plasma users. Reason I wonder is because I typically do not experience the same multi-monitor problems I see mentioned here. (That goes for all games.) Great to see the fixes though.
While you're here, please consider supporting GamingOnLinux on Patreon, Liberapay or Paypal. We have no adverts, no paywalls, no timed exclusive articles. Just good, fresh content. Without your continued support, we simply could not continue!

You can find even more ways to support us on this dedicated page any time. If you already are, thank you!

You need to Register and Login to comment, submit articles and more.

Or login with...

Livestreams & Videos
None currently, submit yours here!
Popular this week
View by Category
Latest Comments
Latest Forum Posts