An anchovy in the floppy drive?! This can only mean one thing: There's a dolphin on board the spaceship!

Each player controls a team of up to four astronauts with different abilities, possibly fooled by a murderous dolphin. During dangerous spacewalks, the astronauts try to repair the sabotaged spaceship, unaware whether their companion is helping them or secretly trying to undermine the mission. After each spacewalk, the Captain decides the fate of his crew members. However, a crew in panic can easily overthrow his shifty captain and send him to the void.

The game consists of two alternating phases. During the spacewalk phase, the players try to trigger certain events by combining their cards, only knowing their own though. The actual happenings can lead them to find out who's on which side as the dolphins are working against the arrangements.

In the following Captain phase, the captain decides whether to sacrifice an astronaut from a team of his choice; flood the spaceship, which means the victory of the dolphins; or reset it, the goal of the humans, which is only possible after repairing the spaceship. At this point, the crew has the chance to revolt against the captain and his order, by secretly voting with their panic tokens.

Houston, We Have a Dolphin! is app supported, which allows an in-app narrator and an easy-to-follow game tutorial. To combine the physical astronaut cards with the digital spaceship, HYBR primarily uses magic, helped by their in-house developed image detection algorithm.