Do you like games? Do you like tabletop RPGs, bluffing games, guessing games, math games, dice games or puzzles? If you answered yes to any of these then there is something in WARM HAPPY FRIENDLY for you. WARM HAPPY FRIENDLY is the guessing game and trading game of supply and demand. This is the Core Rulebook which will explain to you how to play, in simple and easy to understand instructions. The Rulebook explains lots of different Rules Variations, such as playing as a business trying to guess supply and demand to sell products, and a science fiction version where players have crash-landed on an alien planet and make stuff and trade stuff in order to get the parts to build a rocket ship to escape. There are over two dozen Rules Variations, ranging from the most simple, a guessing game where you are given a supply of guesses to guess a price that hits or misses the demand defined by dice rolls and the player who makes the most money wins, to the most complex Rules where you run a business making a supply of products in six different industries and guess the correct price to clear the demand, which is defined by dice rolls combined with what has already happened in the game, made more complex by competing with the other players for resources to make stuff and using politicians and the media to attack other players or hiring lawyers to defend from attacks. Set higher prices for your products and make more money, but if another player sets a price lower than yours then they make the sale and you don't. Science fiction Rules include a war against aliens, and Alliances where players mine resources and build weapons and fight other players and the last remaining player wins. In the Ekonomix Rules, you play consumers who must make choices about what to buy where dice rolls control what is for sale. You get a lot of Rules Variations, each one like its own game, when you purchase the Core Rulebook. You will need gamer's dice (6, 10, and 20-sided dice) and pens and paper and a calculator, but the Rulebook includes templates to use for gameplay, and you can use texts or emails instead of paper if you like. Go ahead, buy this book and start playing! You and your friends will love this game! You'll get that WARM HAPPY FRIENDLY feeling when you play! Have fun and enjoy! (Ages 12+, 4 to 21 people, one of whom is a nonplayer admin called the Dice Master, so 3 to 20 players, 15 minutes to 2 hours, Dice not included, Calculator not included.)