At the time of this reply, this is the last message I ever saw from any of them on the discord, on 30th of August 2019
"Hey everyone. First let me appoligize for keeping everyone in the dark about the game and XandZ. My only excuse is that 'life' happened, and has forced Zygy and myself to reevaluate everything. As to Wizards... it is on an indeffinate hold. I would like to thank you all for all the support you have given us it has been truely a pleasure meeting and getting to know you all."
Regarding the graphics, as far as I know, all graphics are hand drawn by Xavier, one of the two that founded the company, and I've just searched up the game you mentioned, what's odd is that the trailer and the banner are branded with BD and the company seems to be SP GAMES, which doesn't make sense.
One just looked into it and the enemies are stock images and bought off a platform called CraftPix.net and the other art style is just similar, I think that game is a cashgrab, as many on steam are.
I personally think and hope that they just have irl problems and the community hopes so too, it was quite a fast change from announcing a new update and the devs stopping.
The website is not up anymore, you can't reach them and I haven't heard anything since August 2019.
I do still believe that donations get to them but I can't assure that.
I know that a lot of work went into this project and I'm just as sad as you that this project is probably never going to get any updates.
Again, I'm hoping X and Z are doing well, whatever they do, maybe just the company was closed and they have different jobs but I really can't tell you sadly.
All in all, in the name of X and Z, sorry for stopping development and thanks for playing!