Games like Antimatter
If Antimatter is your kind of game, the closest matches are Critias Empire, Colonial Winds and CivIdle — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Antimatter: Antimatter is a sandbox strategy game, colonise planets, build your city on the surface or the underground. Build your spacestation or control your own spaceships to explore a huge and living galaxy !

Players who liked Antimatter also play
Steam players who put hours into Antimatter also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Critias Empire
WHY THIS
Top pick for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Antimatter.
Turn-Based 4X-like Strategy: Build the peaceful kingdom of Atlantis into a flourishing civilization. Plan carefully or be ready to adapt as the ancient Gods of Olympus rain down floods, earthquakes, volcanoes and all types of disaster.
Colonial Winds
WHY THIS
Second-strongest match for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Antimatter.
Grow your colony from a small outpost into a thriving nation in this city-building game. Step into the shoes of a colonial governor as you build production chains, establish trade, meet the needs of your citizens, and guide your settlement toward self-rule.
CivIdle
WHY THIS
Third-strongest match for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Antimatter.
CivIdle is an idle/incremental game that allows you to lead your own civilization through thousands of years from ancient times to the modern era. Expand your territory, explore a vast tech tree, build various wonders, and trade with global players: empire must grow and numbers must go up!
Workers & Resources: Soviet Republic
WHY THIS
Ranked #4 for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Antimatter.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
Kingdom Wars 4
WHY THIS
Ranked #5 for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Antimatter.
It's 1347, the time of the Hundred Years' War. In this historical grand strategy and RTS hybrid you play as one of 200 minor lords across medieval Europe, Africa or Middle East. Rise up to take over your Kingdom and be crowned, then fight to preserve your empire as Black Death descends on Europe.
Ymir
WHY THIS
Ranked #6 for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Antimatter.
Ymir is a 4X multiplayer strategy game combined with a city builder where each player develops a civilization of pigmen starting at the stone age.
Empires of the Undergrowth
WHY THIS
Ranked #7 for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Antimatter.
Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.
Rebuild 3: Gangs of Deadsville
WHY THIS
Ranked #8 for Antimatter fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Antimatter.
Rebuild a ruined city in this post-apocalyptic mix of strategy and simulation. Manage survivors, scavenge for food and supplies, deal with rival gangs, illness, interpersonal strife and zombie attacks.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
Landfall Archives
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy and Indie with Antimatter.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
SuchArt: Creative Space
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Antimatter.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy and Indie with Antimatter.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
SCP – Containment Breach
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Antimatter.
A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?
Totally Accurate Battlegrounds
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Antimatter.
Grab your balloon crossbow and trusty inflatable hammer, because things are about to get wobbly! Be the last weirdo standing in the world-leading physics-based Battle Royale game.
Crusader Kings II
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy and Simulation with Antimatter.
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
Narrow it down
Head-to-head comparisons
Frequently asked about Antimatter
- What games are most similar to Antimatter?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Antimatter are Critias Empire, Colonial Winds, CivIdle.
- Who developed Antimatter?
- Antimatter was developed by Geoffroy Pirard.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Antimatter.
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