there's been a Trello column for the Satellite prototype for ages and i've only just remembered to touch on that instead of writing lengthy bullet point lists.

it's hard to keep everything concise but still cover the enormous range of functionality that an MMO is supposed to have. i think that the player's basic actions, enemy interactions, and world networking are the most important things to show in the prototype. although i also think having a rudimentary version of the upgrade system, which is one of Satellite most interesting features, would be a good idea to include. other than that, nothing needs to be pretty or extensible or robust or anything. just make it work.