Steve Jackson Games Triplanetary - SJG1386

Steve Jackson Games' Triplanetary (SJG1386) is a classic science fiction board game of space combat and navigation set in the inner solar system, designed for 2 or more players. Originally published in the 1970s, this updated edition brings vector-movement mechanics and tactical fleet battles to the table, where players plot the trajectories of spacecraft using physics-based movement rather than simple grid steps. Games typically run between 1 and 3 hours depending on the scenario chosen, and the rules scale well from introductory skirmishes up to full campaign play. The game suits teens and adults aged 13 and up who enjoy strategic thinking, science fiction themes, and games that reward planning over luck.

Key Features

• Vector movement system simulates realistic Newtonian physics for spacecraft navigation
• Multiple scenarios range from short tactical engagements to longer campaign games
• Covers the inner solar system including Earth, Mars, Venus, and the asteroid belt
• Supports 2 or more players with options for competitive and team play
• Designed by Marc Miller and updated by Steve Jackson Games with revised rules and components

What's Included

• Game board depicting the inner solar system
• Spacecraft counters and fleet markers
• Scenario booklet with multiple game missions
• Rulebook
• Tracking charts and reference materials