Yes, it should be possible, although I have yet to see anyone do it successfully. You need to create or find a .GFT font file and then place it in "base/client/ui/cache". A separate GFT file is required for each size. I believe that for fonts available on the client's computer, Blockland will automatically generate the GFT file as needed, while for fonts not on the client's computer you must provide it yourself.
From the small amount of research I just did, GFT is a format that originated in the '80s and was created by Digital Research/DeltaSoft.
http://www.deltasoft.com/You might want to turn to Google for more information.
Writing to sequel lite (SQL) or something of that sort.
What?