that seriously hinders unfamiliar players is the seemingly impossible task of exiting the very first room. The only way out is a hidden door that may be revealed by casting a "light" spell called "Milwa". The only way to do this is to recruit a group of Priests. This seemingly simple task is made unintuitive due to the lack of any evidence that there is a door to begin with; the necessity of recruiting a group of Clerics, which are ineffective in combat and take the place of effective combat recruits; and the need to enter combat until the Clerics cast this spell. There is no suggestion in the context of the game as to what Milwa or any other Cleric spell name means; only players familiar with prior Wizardry games would understand its function. To a player unfamiliar with these earlier Wizardry titles, it would seem that the Clerics cast a useless spell. Furthermore, the Milwa/Light spell eventually expires, meaning that there is a limited time to find the door once the spell is cast. (Acknowledging the difficulty of this very first puzzle in the game, Sir-Tech included a sealed envelope in the game package containing its solution, to be opened if the player couldn't figure it out on their own.) Copy protection The Return of Werdna had an unusual form of copy protection. No attempt was made to prevent copying of the game disks. Instead, the package included a book containing a long list of 16-digit "MordorCharge card" numbers, designed to resemble credit card numbers. This book was printed on dark red paper to make photocopying difficult. After completing the first level in the game, the player is given a randomly chosen 12-digit number, and asked for the last four digits. The player must look up the corresponding number in the book and type it in to proceed. This tactic effectively gave those who made copies of the game a free demo of the first level before demanding that the player show proof of purchase. However, the algorithm for computing the MordorCharge numbers was not very complicated, and consisted of little more than adding three numbers modulo 9000. Those having knowledge of the method could calculate the correct response using a small lookup table and some relatively simple arithmetic. Although such means of discouraging copying would be considered little more than a nuisance today, it was fairly effective