>>13748320
>>13748093
The games are available in packages on GOG.
Creatures - The Albian Years (1 and 2)
Creatures - Exodus (3 + expansion)
>>13748093
so, i think the difference is this:
Creatures 2 - improved genetics, more stuff in the world, more features
Creatures 3 - much larger world, more gadgets, but almost no science tools to monitor your creatures in-game.
I'm just getting back into the game after years so I'm trying to figure out how everything works. There are still some old websites with great explanations.