Comment by ianstormtaylor

A few different resources with various ways to go about it, one of which may be near what you were hoping for:

FontStruct: https://fontstruct.com/

Calligraphr: https://www.calligraphr.com/en/

Kreative Korp: https://www.kreativekorp.com/software/fonts/index.shtml#rela...

Glyphs: https://glyphsapp.com/learn/pixelfont

PixelForge: https://www.pixel-forge.com/