Culdcept has borrowed its basics from Monopoly and Magic the Gathering, creating a curious hybrid, in which players plant monsters on their property instead of hotels, and rather than buying you out, your opponent must summon his own creatures from cards to battle yours if he wants to avoid a toll. It seems a strange marriage, but having played it, it works so well that it's a wonder no one thought of it sooner.
My used copy came without a booklet, yet I had figured out how to play in a single match against an AI-controlled adversary, with the help of the available in-game instructions and index for reference. Like all good games, it's easy to pick up and difficult to master. While it was built to be a multiplayer experience, it's damn near impossible to find others who own this title, but it's definitely not the fault of its makers that it's unpopular considering how addictive and entertaining it is. An online mode would have been awesome, but in its absence, Culdcept...