64-bit version for macOS 10.15 Catalina?

[Thunderforge]

I'm interested in buying this game for my Mac (I have fond memories of playing Myst: Masterpiece Edition on the Mac I grew up with)! However, the Steam store page says that it won't run on macOS 10.15 Catalina because the game is 32-bit, but Catalina only runs 64-bit apps.

Is there any chance to have this game upgraded to 64-bit for Mac? As a Mac gamer, I really want to be able to relive my childhood memories in glorious 3D!

[Halloween Jack]

Steam's warnings about the Myst series games and their compatibility (or lack thereof) with 64-bit-only Catalina are not entirely up-to-date.

Cyan's games that are available for macOS that are 64-bit compliant:

Obduction
realMyst: Masterpiece Edition
Myst III: Exile
Riven: The Sequel to Myst
Myst: Masterpiece Edition

Cyan's games that available for macOS that are not currently 64-bit compliant:

URU: Complete Chronicles
Myst V: End of Ages
Myst IV: Revelation

Note: Cyan is working with Codeweavers, the developers who helped us update the games in 2018, to make them compliant with Apple's latest update requirements.
We don't have an estimate for when this will be complete.