The Dice Of Myth Test Book is designed to allow those who are interested in Dice Of Myth to take a look at the game without needing to make a purchase of the game manual. Whilst missing content and using variations of some rules in the Dice Of Myth Game Manual, you still retain the ability to play a campaign from level 1 to level 20. Since Dice Of Myth derives many of its rules from SRD 5.1, anyone who knows how to play Dungeon and Dragons will know how to play Dice Of Myth (excluding the new/changed rules which won't take long to learn).