Tilt Brush - Paint in spaces around you with Virtual Reality
RealWorld Paint - RealWorld Paint is an free portable image/photo/animation editor.
JS Paint - JSPaint is a web-based Microsoft Paint remake
miniPaint - Online graphics editing tool use HTML5 technologies like Canvas, Offline support, Drag and Drop.
PaintCube - Web-based 3D painting software
JugiPaint - JugiPaint is a painting software with diverse tools for various types of illustration work.