Slay the Spire don't start on Linux (GOG)

Recently I bought the game, Slay the Spire on discount, and after install it couldn't start it. I checked via terminal, that it had some Java problem, but I could start the game from the game/SlayTheSpire executable.

So I just modified the following .desktop file:

~/.local/share/applications/gog_com-Slay_the_Spire_1.desktop

In the file, I replaced the line that begins with "Exec" so it ends as

the\ game\directory\ game/SlayTheSpire

The game starts slow for me, but after that works fine.