I was surprised too when they decided to switch, I'm a ten year veteran since RSC, so Java has always been the way I have thought of that game. Even the company

I was surprised too when they decided to switch, I'm a ten year veteran since RSC, so Java has always been the way I have thought of that game. Even the company name, JaGex, is an abbreviation of 'Java Game Experts.' They have released some detailed graphics of the new rendering engine in HTML5 and what I assume is Javascript and the results are fairly spectacular, much more clarity and the improvement is at least partially visible, it just remains to see if it will run as fast as RS2. I should however clarify, the back end will still be a mixture of Java, with C++ strapped on top where needed.