Based on https://fontstruct.com/fontstructions/show/2155925/threebyfive-6 but extended to 5x5, so cyrillic greek and kana are more readable.
Crisp at sizes multiple of 4.5 (9)
This is a clone of ThreeByFiveFives. I had a 5x5 pixel font amongst my source material so I made it into a font. Everything is based on a 5x5 grid. Next level of this will be to use the shaped blocks to improve the curves and slopes and just make it a really small font.