Cubism is available on Quest, Rift, Pico Neo 3 and SteamVR.
Yes! If you buy the game on Rift(S) you'll have access to it on Quest as well and vice-versa.
Yes, Cubism supports sideloading custom puzzles and color themes, and as of v1.6.0 there's a built-in local puzzle editor so you can make your own puzzles. You can learn more about all of this here.
The game has 90 puzzles across two volumes, good for hours of puzzeling!
Yes! Furthermore, if you e-mail us proof that you're a teacher and that your school has a VR program, we're happy to sponsor a free key for the game.
Update your Quest to the latest firmware (in the settings menu) and restart the headset, this should fix the issue. If not, please reach out to us at thomas@cubism-vr.com for further support!
Shoot me an email at thomas@cubism-vr.com!