Gnuroot debian/gnu root Runescape - play on mobile

Not sure if this has been shared but a search for "gnu" revealed nothing. so I was curious as to whether I could play Runescape on my mobile devices which are unrooted. a google search led me to gnu root. And it works. Bloody slowly but it works (on my Xperia z5 anyway) controls are terribly hard to use but for simple tasks like mining woodcutting etc it works great. in saying that I can easily run a mouse on my phone and tablet and it makes it 100x easier.

Has anyone else tried this or have any. Other options (aside from remote desktop) I'm looking at ones that work purely on the phone.

Gnu root installs a version of debian which you can then get additional software packages for such as the gnu-runescape.