I will explain how to play darts . everyone has internet explorer as default browser,so do i. But i use microsoft edge 11 to play all flyordie games except (darts and tanx). To run this 2 games you need internet explorer or mozila and java installed in ur computer.
go to page darts i mentioned before click alt+F it will show a page in ur right side.
Eventually will appear various options like " new tab , new window, favorites, collections , history"
Please click settings ok. will appear another page ( profiles , privacy, search, and services etc.. ) please click default browser ok. There all you need is to added darts main log page here , where it says ( add ) and allow sites to be reloaded in internet explorer mode and always ( recommended)