KMC is the right brand to buy for Rohloff-equipped touring bike. But for the price of a KMC-X1 you can get a three-pack of the X8-93 or X8-99, and probably four of the Z8. I'd like to see an X1 outlast two or three or four of those before I splash out that much money on a chain, and haven't yet. We're waiting for members of this forum with the X1 to rack up experience and report what mileage, in comparison to the chains they used before, they made on the X1.
FYI. The Z8 is the best single speed chain from KMC, short of possibly the X1. The X8 is KMC's best eight speed derailleur chain. In theory, the Z8 is cheaper. In practice the X8 is more common and thus more often discounted, so most of us buy it. Since the X8 gives impressive mileages on Rohloff installations (I more than doubled the distance I went on a single chain when I switched to KMC), a suspicion arises that its extra flexibility is actually an advantage on a faux "single-speed" installation like the Rohloff. Also, as has already been mentioned above, the X8 fits the Hebie Chainglider and the Surly stainless steel chainring, very desirable components towards a zero/very, very low maintenance bike.