I glad that it helps ;), if you find some bugs, just write me in Our Discord
"Will this game be receiving further updates and things or is this game fully completed now?"
Next updates it's mostly like DLC, the main loop is finished, we're just going to add more hentai content for additional scenes. 
There're latest Wonder Slave testing builds on our website, like WST 0.7.
It's avaliable for closed testing for all SubscribeStar & Patreon backers
And we've a pre-rendered content for the next 0.8-0.9 releases, there're some posters on the Wonder Slave game website.
Becouse of the war in Ukraine we lost access to our main server with all code & rendering hardware, so it's pretty hard to say what time we"ll go forward with next Wonder Slave development, I have a hope to do it before New Year, will see.