I want to modify a GTA game I made many years ago in A7 (C-script) to be a pay subscription based MMO, is this possible? how would I go about doing this?
Bit late to reply but seeing how it had no replies yet: it is probably worth the trouble. With lite-c (not sure about c-script) you can make multiplayer games but not good for competitive games and also not for mmo's. Better to port it over to a more modern engine (eg Unity).