What is Phoenicis?
Phoenicis is a new tool that manages Wine a compatibility layer that makes Windows Games and Programs compatible with Endless OS
1) Recommended have Endless OS 3.5 or higher
(To check which version of Endless OS you are in Settings 
Details)
2) Go to the search bar and type Phoenicis
3) Click Phoenicis
4) Click download
Here is the Phoenicis documentation: Welcome | Phoenicis Documentation
Help translate Phoenicis: Phoenicis dashboard in Crowdin
Help translate Phoenicis Scripts: Phoenicis Scripts dashboard in Crowdin