basically yeah you are trying to survive a world of hostile and friendly ones. you can tame the animals and make them your loyal pets. you chop up wood and rock to build stuff. gather berries and meet so you don't die. even have to drink water. if it gets too cold or even too hot you can die.
it's a lot of fun bro. no I don't have a plus account. I have truly lost interest in hearing screechers talking about fucking my mother. lol!