>>402357216
Its easier. Instead of taking risk and having to invest in a new project, keep the base game, add a few new meshes here and there, port it to a new platform, milk more cash with the same base game.
The strange thing, they could milk the cows better at about the same risk if they would apply the Rockstar formular. Keep the base game but release new map packs with new stories and a few technical upgrades every few years at full price