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Follow the game's development :
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.
Antimatter
Geoffroy PirardDeveloper
Geoffroy PirardPublisher
1970-01-01Release
🎹🖱️ Keyboard + Mouse
No user reviews (0 reviews)
DEMO II is Live + Tutorial

DEMO V2.0 is now live, through the 2nd of october.\nAs noted in the in-game greeting message: take heed, this is an alpha!\nThis is aimed at collecting feedbacks.\n\nHere posting again the video detailing this update.\n\n\nI have also released a new tutorial, teaching you how to use your influence to allocate assets :\n\n\nAnd if you have missed it, there is also this tutorial teaching the basics of navigation:\n\n\n

Patch note:

\n\n

B0016

\nRelease date: 27-09-2025\nDEMO 2 candidate #3 - Minor update\n\nFixed (Scenario): Spawned spaceshipd had their AI disabled\n\nOverhauled fleet roster assignement\n-It is no longer possible to assign non-attributed ship to fleet for a fraction of influence cost. Only attributed ship can be assigned.\n-QoL: Adding fleet roster is now refined to show only 1.what can be added no at no influence cost (attributed assets) and also 2.assets that can be allocated + added to the fleet.\nIt also shows more infos (control type, ship type, cost in influence)\n\nFixed: Deallocation of spaceship now remove her from current fleet\n\nFixed: Spaceobject crew index error causing crew to not be associated to the object\nThis caused a bug (among many potential ones) where escaped pod did not expire after having its crew recovered.\n\n----------------------------------------\n\n

B0015

\nRelease date: 27-09-2025\nDEMO 2 candidate #2 - Minor update\n\nFixed: An asset on sale can no longer be attributed\n\nOverhauled how spacecraft are bought and sold\nAny assets, including spaceships and station can be reliably bought and sold, more conditions were added for acquisitions and exchanges. Many fixes and safeguard added, tooltips, failure feedbacks etc...\nSelling assets is now governed by action points when performed on behalf of an organization, as it is considered a political action\n\nFixed: An allocated spaceship will now leave her current fleet\n\nFixed: \'Board & take control\' (spaceship) was not working in some specific situations\n\nFixed (Planisphere): Wrong size of unexplored tiles causing visual glitches\n\nUI: Planisphere/Galaxy PoV switches are moved to the bottom menu\n\nFixed: Planisphere view could crash\n\nFixed: Erratic tile selection in the planisphere\n\nFixed UI: Resized docked spaceship list in ship view and fixed an issue preventing mouse interaction with it\n\nUI: Added an overlay indicating when (and why) the weapon system is disabled (hyperdrive)\n\nOrganization: AI refactored to ECS with Burst-based parallelism\n\nFixed: Performance issue on new day (planet populations migrations)\n\nFixed UI mismatch on mission details button\n\nTweaked scenario: Added more ships to be allocated\n\nFixed: Lua Script mission trigger was not working\n\nTweaked the greeting message to make even more clear this is an alpha\n\n----------------------------------------\n\n

B0014

\nRelease date: 24-09-2025\nDEMO 2 candidate - Focusing on accessibility, UI, immersion, missions, space station building, richer scenario, code architecture and bugfixes.\n\nOverhauled Action Menus\n-Single system for both party action and ship actions\n-Removed \'current action\' window (streamlined with rework action)\n-Removed party effects (will be replaced)\n-Scavenging, surveying and timed action are more reliable\n-Actions have now a progress bar, a tooltip with localized name and description, a duration, repeatable trigger, a loading loop, a nitication call option, a pause game option\n-Much more performant code overall\n-Extended action moddability\n-Improved scavenging mechanisms\n\nUI Revamp - System view, Planet View, Galaxy View\n\nAdded: Zoom to mouse\n\nUniversal Search UI\nAccessible with Left CTRL+F\n\nUI: Offscreen indicator\nFor current target and up to 3 tracked missions\n\nOverhaul of Disruptor missiles and added features\nAI added, added default loadout system, and many other related mechanisms - Disruptor are fast, long-range missiles capable of turning-off the hyperdrive of the target.\n\nFixed: Can no longer modify spaceship\'s doctrine that are not under control\n\nFixed: Selecting then deselecting a spacecraft was messing with its AI\n\nAdded possibility to transfer crew members\n\nTweaked (Modding): All Enums literals are now exposed in Lua\n\nReworked codex - better perfomance, no dynamic codexes\n\nUI: Character sheet overhaul\n\nUI/Feature: Added game settings\n-Resolution selection\n-Keymapping\n-Music volume\n-Sound effect volume\n-Zoom speed\n-Display mode\n\nGameplay: Overhaued \'PP\' to \'AP\'(action points)\nAction points Represents the daily effort a character invests to pursue objectives and lifestyle choices. \n Action Points are spent on political actions, launching major projects such as constructing space stations or colonizing new worlds, and are also consumed passively by various lifestyles.\n Action points are difficult to cumulate and will decay faster at higher values.\n\nSpacestation building overhaul\n-Completely redone the UI/UX for station building\n-Redone the station building conditions and constraints\n-Many fundamental work on station building logic\n-Building a station spends Action Points instead of influence\n-The built spacestation is no longer automatically attributed to the initiator of the project\n\n\nAdded dynamic music\nAdded multiple music tracks, and \'virtual DJ\', music adapts dynamically to the mood in the game.\n\nFixed: Custom system generation sometimes broke\n\nNew trait and mechanisms for character : \'Fated\'\nA new trait, protecting some essential characters and the player from the hammer of RNG, for exemple a fated character will always use the escape pod when his spaceship blows up: \'Protected by destiny, this character always survives events that would claim others.\' \n\nRestored barks (Radio chatter)\nSpaceship yell short messages about their emotions, things they are doing etc...\n\nAdded disruptor launcher to all frigates\n\nAdded 10 closest star system to the prologue scenario\n\nLua precompilation cache\n\nTweaked the zoom system to be no longer dependant to timescale\n\n(BETA) UI scaling for all resolutions\n\nImproved strategic view UI, with display mode etc...\n\nUI: Richer description and context menu when allocating or buying an asset\n\nFixed: Transfering money to an organization was not working\nerror when registering organization inventory\n\nFixed: organization\'s election on policy was not working properly\n\nAdded hyperspace drive to Shuttle\n\nNew starting background for the prologue\n\nImplemented default doctrine for ship data\nListening post has default military doctrine\n\nMission UI rework\n\nAdded 3 tutorial missions to Prologue\n\nHuge amount of optimization and code quality/structure work\nthe hidden part that makes up to 50% of this update\'s workload \n\nTons of tweaks and fixes\n-> All the undocumented small additions and fixes, there are a lot.

[ 2025-09-27 19:56:57 CET ] [Original Post]

Minimum Setup

  • OS: Linux
  • Processor: Pentium 4 @1.5 GHz
  • Graphics: AMD or Nvidia Graphics card with 512MB RAM
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