You can buy Skull and Bones in PDF at DrivethruRPG. Or you can buy it in print.
Similarly, Forgive Us is like a fiver in PDF. I wrote a longer review of it a while back..
Tin Man Games do Fighting Fantasy apps for mobile devices.
I forgot Ian Sturrock when mentioning the people who did Skull and Bones!
Also, it occurs to me that Skull and Bones would combine very well with Call of Cthulhu d20.
Here is the post about Maelstrom I mentioned. Also, turns out the game is, you guessed it, on DTRPG for $10 US (about £6).