Can confirm PCL++ also works.
Since you don't know about Wine and apparently used Windows until recently (and I want to help others getting into Linux gaming :-D), I'll assume you're a new user and give you a short tutorial.
To play, install wine if it isn't already, then download and unzip the game and start it with "wine PATH_TO_UNZIPPED_FOLDER/Pocket\ Crystal\ League\ ++\ \(v2.3.0.0\)/PocketCrystalLeague.exe".
You might want to rename the folder to avoid the escape characters, or just use an alias. For example, if you put
alias pks++='wine ~/Downloads/Pocket\ Crystal\ League\ ++\ \(v2.3.0.0\)/PocketCrystalLeague.exe'
in your .bashrc (and change the path accordingly), you can start the game by simply typing "pks++" into the terminal.
Alternatively, you can add the .exe to your Steam library and play it with Proton (compatibility tool for Windows games on Linux, based on Wine).
Hope this helps, have fun!