Should I buy Anomaly or Royalty?

Rimworld is my most played game but it's been quite a while since I've played it mainly because I feel that many of the mods I use aren't complete without the 2 DLC's that I'm missing. I'm planning on buying a new DLC but can buy only one. Which among the two would you guys recommend if I wanna increase my playtime by like another 100 hours?

UPDATE : After much consideration I have decided to buy Royalty. Thank yous for your answers and if anomaly seems really good I'll try to save up and get it next month