Sounds like that kind of game that would need a community to thrive, to be honest. I've already found a handful quite interesting strategies with a certain few patterns - I'm guessing a place to share them would improve retention. That tends to be how it is with emergent games; the players end up making the game more than the devs do, oftentimes. The recording function is a good idea.
Are you considering this to be a long-term project if it garners enough attention, or a stepping stone? I'd be entertained to see what comes of it. Especially if you implement PvP.