Moonstone: A Hard Days Knight is an action role-playing video game by Canadian independent developer Rob Anderson and published by Mindscape for the Amiga in 1991 and one year later converted to DOS with different sound and music. The title is a play on A Hard Day's Night. Moonstone's gameplay blends several different genres, allowing up to four players to participate in a basic turn based game with real time combat for any encounters. It is also notable as one of the goriest games of its time, with some particularly bloody fight and death scenes. Magazine advertisements for Moonstone purported 'nearly' a thousand frames of animation for two megabytes of monsters, and over 60 different painted backdrops. Gameplay The player takes on the role of a chosen knight who is sent by druids to return the mystical 'moonstone' to Stonehenge. The game supports between one and four players at once, with the computer controlling any knights not controlled by human players as rival NPCs. Gameplay consists of two distinct modes: turn-based exploration and real-time combat. In turn-based mode each player can move a limited distance on the game's world map and visit various locations. Players will mostly visit the many dolmens that are scattered across the map. These places represent areas guarded by monsters. Visiting these dolmens will trigger the second main gameplay mode: real-time combat. Players take control of their chosen knights and attempts to defeat the monsters using sword combat similar to Barbarian: The Ultimate Warrior or Sword of Sodan. Defeating the monsters rewards the player with treasures from that location. Success will also result in gaining one experience point (XP). These then can be distributed in one of the three abilities: Strength, Constitution and Endurance. The required amount of XP needed to advance varies according to the number of human-controlled characters. This, combined with some powerful weapons that can be discovered or bought, can boost the player's combat abilities. However, the difficulty of the game increases to compensate. The game's objective is to find the lair that holds one of the four keys. The player who gathers together all four keys (either by finding them or by stealing them from rivals) will have access to the Valley of the Gods at the center of the map. The knight will have to fight against the Guardian in order to win a 'moonstone'. The moonstone corresponds randomly to a