@PurpCat @William_The_Dragonborn To be fair, this was during a time when different platforms were still vastly different in terms of architecture, thus making porting more difficult. Games were still largely written in assembly which meant that you had to essentially rewrite the game from scratch if you wanted to do ports.
@PurpCat @William_The_Dragonborn You said "versions of the same game" which made me think of ports.
@PurpCat @William_The_Dragonborn Most companies just license out to other, smaller companies in those cases. That way, they don't have to directly pay any extra employees. Falcom did that with Ys IV. That's why there were two (later three) versions of the game, with radically different stories.