Thank you everyone for trying to help! I was able to achieve what I wanted by extracting the SWF from the game and running it through Ruffle. Regards
I can't tell how many FPS I get because as I wrote above -- there are issues to get the game working with third-party tools. I tried both in windowed and full-screen mode.
The game can be run straight from the exe file without the Steam client.
By original version I mean this one: https://www.humblebundle.com/store/the-binding-of-isaac-wrath-of-the-lamb-dlc https://store.steampowered.com/app/113200/The_Binding_of_Isaac/ It has been originally released in 2011, well, I guess it is slowly becoming retro...
I am talking about the original version of The Binding of Isaac: https://www.pcgamingwiki.com/wiki/The_Binding_of_Isaac It says that it should support DirectX 9.0c but so far I haven't had any success getting it to work with any wrappers... My ultimate goal is to have the game running on a newer graphical API and improving frame pacing with either RTSS or Special K (currently I can't even get any third-party OSD displaying in game). Maybe you would have some useful ideas? I have also asked about...
Thank you for creating this game! If implemented well, 3D positional audio can GREATLY improve immersion. Check out for instance this video with headphones: American McGee's Alice with 3D spatial sound (OpenAL Soft HRTF audio) And here's comprehensive List of video games with binaural audio (where you can find links to more videos, and to the 3D Game Audio server community) Regards
Lightgun tester
Nothing works. Hmm... It looks like Macs use their own very specific version of UEFI. Maybe try this: "Enterprise, a custom UEFI boot manager designed to load Linux distributions, even those without UEFI booting support"