Geoffroy Pirard is a 31-year-old French developer and professional software engineer. Before becoming a programmer, he spent nearly a decade working as an independant shopkeeper and online seller.

He began developing Antimatter in his free time on April 15, 2020, alongside a full-time job working on a military-grade simulation software. As of March 2025, he transitioned to a part-time schedule to dedicate more time to Antimatter, pursuing his long-term vision for a deep space strategy game, and finally deliver the promised game to his Kickstarter backers.

Procedurally Generated Galaxy
Explore a vast, unique galaxy, complete with star systems, planets, moons, and asteroid belts.

Planetary Colonization and Development
Build cities, outposts, and industrial complexes tile by tile, with detailed resource management.

Customizable Spaceships
Design, refit, and manage ships with modular components, from cargo haulers to heavily armed warships.

Dynamic Economy and Trade Systems
Simulate production, consumption, and trade across planetary and interstellar routes. Supply chains matter.

Fleet Operations and AI-Controlled Logistics
Assign roles to ships and fleets, automate supply missions, and optimize operations with intelligent mission and task systems.

Diplomacy, Ethics, and Faction Politics
Interact with independent corporations, and other factions, each with their own values and goals.

Deep Policy and Government Simulation
Shape the identity of your civilization with policies that affect ethics, production, society, and external relations.

Exploration and Scientific Expeditions
Dispatch exploration parties to uncharted worlds, and uncover secrets that shift your strategic options.

Living Simulation
Every system, from population growth, orbital mechanics, and industrial logistics is simulated, not scripted.