Arkadian Regular & Arkadian Bold are free for noncommercial use and are donationware for commercial purposes.
If you'd like to use a font of mine for commercial purposes, you can give a donation. the amount of the donation is accordingto whatyou consider fair.it will be OK!
Terms of Use:
After making your donation you have the nonexclusive, nontransferable, perpetual and worldwide right to use the font for unlimited commercial purposes and in any medium (print, online, commercial, merchandise, logos, etc.) The only prohibition is on selling the font as a font (as opposed to a game application that has the font within it).
All fonts and files are offered "as is" and there are no guarantees that a font will work well on a particular machine or with a particular software product. Since the fonts are freely available for immediate download, you have the ability to test the fonts' quality and compatibility with your machine and software prior to making any donation.