Atma is a colorful fantasy action game with an interesting story and clever fighting mechanics.  It isn't a typical hack-n-slash, instead you use earned abilities to solve puzzles, slow down time and attack enemies by slicing zones on the screen.
Follow my step-by-step guide on installing, configuring and optimizing Atma Demo in Linux with PlayOnLinux.
Note:  This guide applies to the itch.io version of Amta.  Other versions may require additional steps.
Tips & Specs:
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PlayOnLinux Explained
Mint 19 64-bit
PlayOnLinux:  4.3.4
Wine:  4.0
DXVK:  1.3.1
Wine Installation
Click Tools
Select "Manage Wine Versions"
Look for the Wine Version:  4.0
Select it
Click the arrow pointing to the right...