After receiving this expansion for the wonderful Arkham Horror base game we decided to go all out and throw every expansion we has onto the playing field. With the maximum investigators so we could have people covering all points, we gave it a shot. Many a player were devoured, and many and old gods broke the seal and destroyed our world, but it was so much fun. The new Kingsport field was aimed at giving the players a bit more survivability, but the damage that could be done from a Rift opening was immense. Thoroughly enjoyable and well worth it. If you want your players to survive better, you can just include the playing field additions. Personally, we saw moving portals because of the Rifts opening, and it was a lot of fun having to deal with a portal opening, moving and then another one opening behind it. (Apparently some of the smaller expansion have moving portals as well and we're excited to combine these and attempt to survive.)