Update 1.8.1 is a long overdue update that brings in many of the quality of life and maintenance changes from the Quest version of the game to Steam.
The main improvement under the hood is a better implementation of OpenXR support, which allowed us to consolidate support for different OpenXR runtimes into one build, meaning there is no longer a need for the two different launch options we had before.
Here's a full change log:
Updated OpenXR implementation to support all OpenXR runtimes, no longer requiring the secondary OpenVR launch option.
Added Italian, Dutch, Brazilian Portuguese, Polish, and Russian localization
Added 7 new songs to the soundtrack
Added a recenter button that allows you to quickly reposition the puzzle and menu back in front of you when you away from the puzzle
Added the option to launch the game directly in to the last puzzle you were playing