I absolutely love Earth! It is one of the best solo games I have played to date. I've not played with more than two people, but I really love that every player does something every turn - it makes the play time go by faster. There's not a ton of player interaction, which I don't really mind, but because there is a lot more that each player does every turn it does cut down on the opportunity to socialize. It's also a really visually pleasing game, has a high replayability factor. Definitely pleased with the game. Also Riftgate sent it in the most wonderful packaging! I will certainly be purchasing from them again!