Set in the 21st century, the map depicts the inner Solar system out to Jupiter. Scenarios involve racing, pirating, invasions, and a few others. Movement involves vector mechanics. Players plot courses using a grease pencil on the map and use fuel to accelerate a maximum of one each turn. Planets and moons are used to modify the trajectory. There are a limited number of ships. Most are limited in fuel, so making efficient use of gravity is important to reaching a destination. It was designed by Marc "Traveller" Miller and first released in 1973. A second edition was released in 1981, but it's been out of print since then. Now, this long-lost game returns with a larger map and 5/8" counters! The new edition contains an alternative combat system for those who like more detailed space warfare, but the original rules are the default and play just as well as they did in 1973. Triplanetary is fun to play solo, and has scenarios for two, three, and four+ players. The quick, intuitive movement and combat rules are unchanged. All the scenarios from both editions have been collected, and new campaign rules added. This edition is lightly edited by Steve Jackson, who has been a Triplanetary fan since his college days.

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