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Build a unique space fleet and compete for orbital control across the vast reaches of the solar system—from Mercury to Jupiter.
Win decisive space fleet battles and conduct scientific exploration of alien worlds.

Director of Solar Affairs is a turn-based strategy and simulation game centered on orbital combat, combining space warship design, construction, and solar system exploration.
Beginning in 1935, the game spans several decades of warfare and scientific advancement, telling a space epic written by your own decisions.

In the game, you assume the role of the Director of Solar Affairs, the highest authority of a world power’s space program.
Over decades, you will oversee your nation’s expansion across the solar system—evolving from early 1,000-ton space destroyers armed with conventional cannons, to massive space battleships weighing tens of thousands of tons and equipped with large missiles and railguns, alongside multi-role scientific vessels.
You will personally chart your nation’s path of expansion throughout the solar system.

Core Gameplay Overview

• Design, build, and maintain space warships, scientific vessels, and auxiliary ships

• Allocate budgets to advance space technology

• Organize scientific exploration of alien planets

• Engage in space fleet battles of various scales against other nations when necessary

• Respond to a wide range of possible random events

• Improve your career rating through battlefield victories, technological progress, and exploration achievements, and write your own history of space expansion

Game Features

• Turn-based space fleet combat on a hex-grid map

• Strategic turns progress on a monthly basis, allowing you to manage research, construction, exploration, and supply line maintenance outside of combat

• Gain funding through annual budget meetings and decide how resources are distributed between construction, maintenance, and research

• Freely design ships, with over 10 ship classes ranging from destroyers to battleships, and nearly 20 types of equipment and systems

• Invest in research to unlock higher-performance equipment and entirely new classes of space vessels

• Explore alien planets to uncover discoveries of strategic or scientific value

• Establish and maintain transport fleets and off-world supply lines

• Each nation features distinct ship designs, equipment, and national characteristics

• Play as the United States, the United Kingdom, Germany, the Soviet Union, or Japan