RE: Hi Steemit, I'm an ex-NASA network engineer, legendary member on bitcointalk, developer of bitcoinstarter.com, and creator of spacepirate
This is great advice and your line of thinking is right along the same lines of what I had in mind (and currently in development). I had been watching spells of genesis and at one point was considering making SP a card-based game, but I wanted a true campaign that people could lose a full night of adventuring into. I like that the Spells game has an element of ephemeral quality to it as an asset outside of their game.
Leaderboard that's steem based, I like that idea, very original and has that community tie in. Wow, I'll need to chew on this a bit as I learn more about Steem/it.
Oh yeah, security is a big must, there shall be two-factor authentication, encryption, and hashing for the game functions. Each game roll is also currently probably fair as well, even though it's not gambling, I want to prove there's no "rigging" involved :D