Other people have explained the Creatures series in so much more detail than I ever could (see the review on this page titled "An acquired taste"), so I won't even bother trying to do more than summarize. You hatch small furry (or scaley, in the Grendels' case) creatures that possess surprising levels of artificial intelligence, you raise them as you see fit, you breed them, they pass along their EXTREMELY complex genetics, life finds a way, etc. You want mutations people who have playing for 20 years have never seen before? You can get them. You want to handraise each norn as if they were your own children? Maybe lock them out of the Jungle, but you can do it. You want to just let nature take its course and see what happens? There's entire fanmade playstyles for that. This series, but especially this game in particular, has more depth than anything else on this site. Creatures isn't just a game, it's a technological and scientific accomplishment (especially in the case of Creatures 1, which wasn't so much part of a game genre as it was the creator of its own, new genre). Something to be aware of with this game: setup can be a challenge for some players on some computers. Google CreaturesCaves, there's lots of help available for troubleshooting install issues (a hint: if you have trouble with files--especially catalogue files--not being found ingame, copy your entire game over from the GOG folders to the folders you'll see in My Documents and run your game from there instead). Something else to be aware of? This game is alive. This is a game from 1999 that fans are making NEW content for in 2018. Again, try CC. But the community that loves Creatures is very much still kicking 20 years after their last game came out, and that says more about it than anything else ever could.
