I love this game - I can sink hours into it with or without mods and just enjoy building my colonies. With mods it is even more fun! Honestly, if you are looking for a game to just sink time into and you need to more or less shut your brain off to the world outside, I highly recommend.
For those who have said 'the game is not finished' - the point of the game is to make a ship, hop on that ship, and leave the Rimworld.... that is your endgame. The base game is a complete game... it is feature complete.
For the one person who said it takes your money - there are no micro transactions so please don't listen to them.