Pocket Madness is a fast-paced card game inspired by the writings of H.P. Lovecraft. In the game, you evoke the powers of the Ancient Ones to drive your fellow cultists mad while securing your path to victory. To play, you first deal each player two cards from a deck then form a row with the rest of the cards. some cards will be face up while others will be face down. Each card will have one of 7 Great Old Ones depicted on it (with it's assosiated number).
On a turn, you either take 1-3 cards, open a portal, or open an investigation. When you take card, you pick up the first 1-3 cards in the row, then add them to your hand. To open a portal, you lay down three or more cards of the same God, then take the portal matching the number on those cards. Each portal has a different power, and you can use any one portal power on your turn. If someone else claims a portal that you own, too bad! You just lost the portal! To open an investigation, discard a full set of Great Old One Cards (numbered 6-12), after which every other player gains as many madness tokens as the number of investigations this round.
A round ends when one player runs out of cards or the card row runs out. In the latter case, everyone takes one final turn, then all players gain madness tokens equal to the number of different types of cards in their hand. If a player empties their hand, that player loses half of their madness tokens while everyone else gains one.
The game ends the round that a player has collected ten or more madness tokens..