Match loop on the client side: orders go to the server, a confirmed turn steps the world five times, and a checksum of the shared state catches worlds that diverge

lang/en.lang

@@ -605,6 +605,7 @@ msg.wage_unpaid = Your {0} found no gold for its wage and is furious!
 owner.rival1 = held by Mossgrim, the green master
 owner.rival2 = held by Lady Nightwell, the blue master
 owner.rival3 = held by the yellow master
+net.desync = The match has diverged: this computer sees a different dungeon than the others.
 
 # rival masters (free game)
 newgame.difficulty = Opponents