UPDATE: Seems the Downloads thing to get the client natively on the site is back up, so you may not have to follow the link I gave. I shall keep it up though for great posterity!

For anyone looking for the client, here it is: cdn.polytoria.com/releases/installer/windows/Polytoria.exe
No seriously, it works!

If you've seen "glutealcheese" or "nillonfjll" on Roblox, that's me! Hello!