

Antimatter is a strategy game in a simulated galaxy where you create and incarnate a character.
In command of your spaceship, trade, fight, explore or lead an interstellar empire.
You will dive into a complex universe where you, a mere player, is the insignificant cog of a cruel simulation.
Features
- Thousands of systems and planets to explore in a gigantic instantiated galaxy.
- A dynamic universe where dozens of factions struggle for power or survival.
- Take command of a spaceship, trade, mine, harvest, scavenge, produce and participate in the simulated economy.
- Manage an existing city or found a new colony on any planet.
- Climb the political ladder of a commercial corporation or a sovereign organisation, or found a new one from scratch.
- Interact with AI characters who are living independant and simulated life in the Antimatter universe.
- Terraform entire planets by altering their atmospheric compositions.
- Fulfil missions for corporations, factions or individuals, or unravel the secrets of this galaxy.
- Get involved in the Antimatter Crisis and try to change yourself the course of history.
How To play ?
Antimatter is a RPG that plays as a grand strategy game, you have neither omniscience or omnipotence, most of your responsibility can be delegated to spaceship captains and governors if you control any territory.
No micromanagement is required, you have the freedom to deal with the businesses that interests you the most.
Antimatter plays in the intersideral space, on the planet's surface or in the mysterious undergrounds, you can play all the way from a space journeyman to a galactic emperor.

Create and customise your galaxy with all available options, such as the stellar systems count and types or the historical events that will impact the simulation of civilisations through the ages.- An universe generated and simulated across billions of years with a realistic accretion model of gas and dust.
- A simulation of civilisations through thousands of years, filled with historical events.
- Asteroids, comets, nebulae, planets and many other astral objects to explore.





- A wide range of planets, entirely simulated and procedurally generated.
- A procedurally generated geology.
- A realistic and dynamic atmospheric simulation.
- Terraform entire planets by altering their atmospheric composition.




All civilisations are procedurally generated and simulated through thousands of years. Ruins, monuments, POIs and ancient artefacts exist thanks to this detailed simulation.

- Manage your crew and the specialty of your crewmembers.
- Customise your spaceship with many modules and choose from dozens of different spaceships.
- A radar simulation with passive and active detection, which rewards stealth and reconnaissance.
- A varied range of weapons, such as missiles capable of crossing millions of kilometres.
- Manage your fleet and hosted ships.
- Land on any planet or asteroid in the galaxy.
- Study and harvest exoctic flora.
- Meet and profit from ancient civilisations.








- Create and incarnate a character, define his physical and psychological traits, his education, characteristic and skills and his appearance.
- NPCs have their life simulated from birth, each trait and characteristics come from an experience in their lives.
- NPCs have their own artificial intelligence, they act by themselves with the same liberty as the player. You are not the only actor in this universe. NPCs also contribute to the political system of organisations.




Create, or be part of a commercial corporation, a sovereign state or a criminal organisation, fulfil missions and climb the ladder of the organisation.- Trade goods.
- Mine and harvest ressources and objects.
- Manage and build space stations, and produce new spaceships.
- Embrace a pirate's life with extorsions and deceiving actions.
- Administrate cities and territories, or lead an entire empire.
- Participate in the organisation's political intrigues.
- Lead and organise a fleet by using your influence.






THe terrain of each planetary region (tile) can be explored and can even be the location of a colony. Each region has its own geology, a simulated biosphere and can host ancient ruins generated during the historical simulation.- Manage the city's industry, trade, demography and its political aspects.
- Plan the city's defences against orbital threats.
- Develop and extend the city's frontier across the planet.
- Explore deep and mysterious subterranean regions.
- A destructible environment and a liquid simulation.
- A dynamic weather system.
- A monstruous fauna (only giant worms for now).






Change the climate of an entire planet by slowly modifying its atmospheric composition, observe the chain reactions on its geology, hydrosphere and its biosphere thanks to a detailed and realistic atmospheric simulation.
The flora is entirely simulated where each species' reign depends on local conditions and the other competing species.



To compensate for the late release (I have missed the mark for Steam 4x fest), the Demo will be available until the 23rd of August.\n\nWork continues in improving accessibility to the game, with this minor patch:\n\n* QoL: Added a warning system for missions\",\nA dynamic warning system, it analyzes the mission and give some hints of the mission difficulty or obstacles.Missions are not player-centric, but centered around the organization that issue them or the state of the simulation.\nWarnings:\n- (Severe) This mission requires docking at a HOSTILE location.\n- (Caution) The mission destination is located far from your current position.\n- (Sever) The mission destination is located at an extreme distance from your current position.\n- (Caution) Insufficient crew berths available (can be freed).\n- (Severe) Required crew berths cannot be provided.\n- (Caution) Insufficient cargo space (can be freed).\n- (Severe) Required cargo space cannot be provided.\n- (Caution) The mission deadline will expire within 2 weeks.\n- (Severe) The mission deadline will expire within 1 week.\n- (Caution) The target is stronger than your current fleet.\n- (Severe) The target is MUCH stronger than your current fleet.\n\nTweaked: Mouse selection on \'Galaxy Objects\' is more accurate especially at higher zoom\n[Tweaked/Fixed: \'Go to destination\' for patrol mission set course to the next waypoint (instead of [wayoint\'s closest star)\nFixed critical issue: Character\'s context menu was not showing up\nFixed/Tweaked: Reworked how crew stats influence the spaceships modifiers\nFixed (Scenario): QPH was seen as a playable Organization\nTweaked: Added description for all skills with their in-game effects\nFixed: Player\'s date of birth was 0 A.D\nFixed: \'Select\' in context menu works better\n\nQoL: improvments on auto-navigation capabilities\n\'Travel to\' now works for any interactable galaxy objects including outpost and colonies, some locations have \'auto-land\' option / \'Travel to (vicinity)\'\n\nFixed: Lock view on Outpost (or controlled spaceship landed on outpost) was not working\nFixed/QoL: Ships with a course set, now auto-undock when necessary to reach the destination\nQoL: \'Go to\' replaced to \'focus view\' + auto close UI panels and extended to all objects
Minimum Setup
- OS: Linux
- Processor: Pentium 4 @1.5 GHz
- Graphics: AMD or Nvidia Graphics card with 512MB RAM
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