Release the codes.
9Ø% of us will do nothing with it. We won’t know how. (I’m probably in that boat.) Of the remainder, 9Ø% will only run it as a single-player or limited number of player game (if I can figure out how, I’ll be in that boat). 1% might make it an open-public game, but of those 9Ø% will probably fail after only a month or so, due to lack of interest, lack of buᵶᵶ (advertising), or lack of funding. ¹/₁øᵗʰ of 1% might make it a “successful” publicly played game, in that they defined success as “Hey, I play with one guy from somewhere, don’t even know the country, really, I think he’s Spanish or something, but ¡I consider that a success!” Let us define success our own way; Give us a chance to do so, at very least.
Release the codes.