The way I do fonts is download the font, add to the game directory and then:
- Add a label that i want to use the font on.
- Set "auto-wrap" to true
- Go down to font and add a new dynamic font
- Go to settings, drag in your font file
- Set the font size.
You can save the font resource out and re-use it if you want. Just make sure to make it "unique" if you want to change font sizes for another label!