i used gms2 to make it. if you can't play it for some reason, maybe try a different browser. there isn't a downloadable version up yet because i'm still working out some quirks with the windows version, but i'll try to finish it up soon :)
I haven't had the change to make it works yet but I'll be patient and wait for the downloadble version. I'm also using GMS2 so I'm glad we can make such beautiful game on this game engine. Most of devs use Unity or Unreal so I was happy to know you used GMS2. :)