Monstra Census is a cooperative game of observation and memory that, in appearance, could look like a classic board game. However, the four players are gathered around a wooden structure on a tablet. Through a clever set of mirrors, the tablet projects its images directly into openings placed on the walls of the structure. Each player must watch his facade and describe the monsters that scroll through the holes. If the description matches one of the cards he or one of his teammates has in his hand, then the card is set aside. In a joyful cacophony, the players eliminate the monsters one by one. The last remaining card is, in theory, that of the only monster that did not appear in one of the openings. The players then proceed to a check using the tablet software.