I discovered that japanese IME from MS supports writing in vertical mode. So, I'm tempted to make an era-like game that uses it, just because it sounds funny, and as a proof of concept. Will go from top to bottom, and then from right to left. Will display arabic letters turned to the side, clockwise. Up-down will move cursor, right-left will scroll history. It will not use the standard control, so it will not display the black bar at the left, like current emuera does at the bottom at all times, and will probably make scrolling a bit smoother. Maybe will switch to drawing with direct3d instead of GDI.