I'm making a very large (for an HTML5 game) project that I'd like to sell on one or more app stores. I also want to get it out where the public can see it and also make a little profit from it before I have it all done.
My current plan is to release it one level at a time, in a "pseudo-episodic format". It can be free at first, but as I add more content, along with revisions suggested (or complained about) by users, I'll increase the price up to whatever the final price will be.
Each level is going to have some story built into it, so players should ideally want to come back for more to see how the story plays out. Users who bought the game free (or cheap) won't have to pay again to get the updates; only the new users will pay the slowly-increasing price.
Does this sound like a valid plan? Am I missing on something big here? Take note I've never sold a game before.
P.S. I have a fairly decent prototype at macjsx.xtreemhost.com/CiS2
All input (could be on the game but primarily on the selling plan) greatly appreciated!
EDIT: Another possible plan is to release the game with the first 1-2 levels enabled for free, but make players pay to unlock the rest of the game (and mention this up-front so it's not a "hidden cost"). Do you think this is a good alternative to just using the app cost?