- Ten Programming Fonts
- Twenty Two Programming Fonts
- Adobe Source Code Pro
- Adobe Source Sans Pro
- Andale Mono
- Bitstream-Vera
- Droid Font
- Liberation Mono
- Inconsolata-g Font
- Inconsolata-d Font
- DejaVu
- Proggy
- Programmer Fonts
- Inconsolata Font
- Finding the Best Programmer's Font
- Monaco Monospace Font
- Luxi Mono Font
- ProFont
- Anonymous Font
- Backpacker Font
- Dina Font
- Raize Font
- FixedSys Replacement
- Comic Mono
- JetBrains Mono
- Microsoft Consolas Font Pack
- Open Watcom Programmer Fonts

NOTE: If any of these fonts support ligatures then they will can also be configure to work in the Zeus IDE editor.
Many other programming font options can be found here.
Here is a link to a page comparing 42 fonts, with many of the fonts listed above also referenced on that page.
Here is a link to several Unicode enabled fonts. Search for the monospace keyword to find fonts that will work with Zeus.