Stone Age Kings is realsing a big patch later this month that introduces some NPC competitors to the game. It seems very similar to Travian’s Natars, though as far as I know Stone Age Kings doesn’t have an end game.
Definitely NPC players can be a huge plus, especially for some of the smaller games. It’s an interesting paradox that some of the larger games are so fun because there are so many people playing and competing. Newer games can often seem “lifeless” because there aren’t so many players. And of course there aren’t many players because when people first try the game it seems lifeless, so they go back to Travian or Ikariam.
However, Stone Age Kings doesn’t seem to have that problem. According to the world info for the English servers, they have 22k and 11k players, which is more than enough to keep things interesting. Anyway, if you were looking for a reason to check out Stone Age Kings, here’s your chance. At the very least do yourself a favour and go see the full image on their post about the Barbarians. There’s a pretty brilliant skull ‘n chain.