I think this would be better named as SolitaireCoin. After I compiled a windows wallet (since one wasn't provided) and mined for a bit, I soon figured out I was the only one sitting at the card table mining. So I quite mining after a couple blocks but came back a few hours later to see if there was any new action. No signs of anybody sitting at the card table and saw that no hands were even dealt since I left.
Sometimes the table is very slow, sometimes there are a few players. One or two have been active lately for sure, driving the block height up to #8375 and climbing. Difficulty currently at measly 0.008.
(and note that the old version 1.0.0 clients still work on the rebooted chain)