https://flathub.org/apps/details/io.github.ihhub.Fheroes2.

flatpak install flathub io.github.ihhub.Fheroes2
flatpak run io.github.ihhub.Fheroes2

To play fheroes2 you will need to copy the 'ANIM', 'DATA', 'MAPS' and 'MUSIC' folders from Heroes II to the fheroes2 folder.

For example:

• ~/.var/app/io.github.ihhub.Fheroes2/data/fheroes2/ANIM
• ~/.var/app/io.github.ihhub.Fheroes2/data/fheroes2/DATA
• ~/.var/app/io.github.ihhub.Fheroes2/data/fheroes2/MAPS
• ~/.var/app/io.github.ihhub.Fheroes2/data/fheroes2/MUSIC

Alternatively, the demo (only one scenario, no campaign and limited assets) can be installed.

https://drive.google.com/drive/folders/1xqrLAEXX2BjnHYD3UJ8NHM85k4k7iFMa?usp=sharing /FHeroes2/.

cd ~/Public/Playground/FHeroes2 && innoextract setup_heroes_of_might_and_magic_2_gold_1.01_(2.1)_(33438).exe

https://github.com/ihhub/fheroes2/blob/master/docs/INSTALL.md#homebrew-mac: If you have a legally purchased copy of the original game, copy the subdirectories ANIM, DATA, MAPS and MUSIC (some of them may be missing depending on the version of the original game) from the original game directory to the $XDG_DATA_HOME/fheroes2 (usually ~/.local/share/fheroes2) directory.

fheroes2-extract-resources
fheroes2-extract-resources /Volumes/Ventoy/Playground/FHeroes2/setup_heroes_of_might_and_magic_2_gold_1.01_\(2.1\)_\(33438\).exe

Related article – VCMI – a free implementation of HoMMIII Engine.