IMHO.

Games like Project Astra Dominium

If Project Astra Dominium is your kind of game, the closest matches are Rionag: Survey Fleet, Little Big Workshop and Hammerting — picked from the ranked list below. Reviewers single out its challenging, contemplative and relaxing. 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.

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About Project Astra Dominium: Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.

2024StrategyIndieSimulation9.99 USDDeck PlayableWindows · macOS · Linuxby Snob Entertainment UG
Project Astra Dominium — Steam game cover
Players highlight
Automation bottlenecks shape defensive strategyBattle success funds factory upgradesDeep tower customization with skill treesChallengingContemplativeRelaxing

Players who liked Project Astra Dominium also play

Steam players who put hours into Project Astra Dominium 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.

  1. Rionag: Survey Fleet

    WHY THIS

    Top pick for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.

    2024StrategyIndieSimulation20.00 USDSteam ↗
  2. Little Big Workshop

    WHY THIS

    Second-strongest match for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Project Astra Dominium.

    Manage your workers, stations, machines and create awesome stuff as your little big workshop grows into your dream factory!

    2019StrategySimulation19.99 USDDeck PlayableSteam ↗
  3. Hammerting

    WHY THIS

    Shares a relaxing mood with Project Astra Dominium.

    Third-strongest match for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    Manage a Dwarven mining colony in the unexplored mountains of Mara. As conflict rages in the Overworld, you will need to craft, explore and fight as you provide the allies of your choice with the finest weapons and gear to assist them in the battle for glory.

    2021StrategyIndieAdventure24.99 USDSteam ↗
  4. InfraSpace

    WHY THIS

    Shares a challenging mood with Project Astra Dominium.

    Ranked #4 for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.

    2023StrategyIndieSimulation24.99 USDDeck PlayableSteam ↗
  5. Assembly Planter

    WHY THIS

    Shares a relaxing mood with Project Astra Dominium.

    Ranked #5 for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    A farming / automation game, that allows you to progress from a poor hard-working farmer with just a few old tools to a lazy rich guy that watches his machines do the work for him while he tries to optimize production.

    2020StrategyIndieSimulation4.99 USDSteam ↗
  6. Rail Route

    WHY THIS

    Ranked #6 for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    In Rail Route, you will design, construct, upgrade, and automate your railway network in one of the many maps based on real-life cities worldwide. Dispatch the trains to make the traffic flow and the network grow!

    2024StrategyIndieSimulation24.99 USDDeck VerifiedSteam ↗
  7. Automation Empire

    WHY THIS

    Ranked #7 for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    Build and manage a massive industrial network of factories, mines, and farms. Employ a fleet of trains, trucks, and robotic drones. In the age of automation, efficiency is survival!

    2019StrategyIndieSimulation29.99 USDDeck PlayableSteam ↗
  8. Tower Factory

    WHY THIS

    Shares a contemplative mood with Project Astra Dominium.

    Ranked #8 for Project Astra Dominium fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Project Astra Dominium.

    Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?

    2024ActionStrategyIndie14.99 USDDeck PlayableSteam ↗

Reviewers mention these as similar to Project Astra Dominium

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Mindustry

    WHY THIS

    Shares a contemplative mood with Project Astra Dominium.

    Reviewers of Project Astra Dominium cross-mention this title as a similar play. Shares Strategy with Project Astra Dominium.

    An open-ended factory management game with RTS and tower defense elements.

    2019Strategy9.99 USDDeck PlayableSteam ↗
  2. Factorio

    WHY THIS

    Shares automation chains and a contemplative mood with Project Astra Dominium.

    Reviewers of Project Astra Dominium cross-mention this title as a similar play. Shares Strategy and Indie with Project Astra Dominium.

    Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.

    2020StrategyIndieSimulation35.00 USDDeck VerifiedSteam ↗
  3. Dyson Sphere Program

    WHY THIS

    Shares a contemplative mood with Project Astra Dominium.

    Reviewers of Project Astra Dominium cross-mention this title as a similar play. Shares Strategy and Indie with Project Astra Dominium.

    Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.

    2021StrategyIndieSimulation19.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Project Astra Dominium at current Steam store prices.

  1. Garry's Mod

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Indie and Simulation with Project Astra Dominium.

    Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  2. Vampire Survivors

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Indie with Project Astra Dominium.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  3. Cookie Clicker

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Strategy and Indie with Project Astra Dominium.

    An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

    2021StrategyIndieSimulation4.99 USDDeck PlayableSteam ↗
  4. WEBFISHING

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Indie with Project Astra Dominium.

    WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)

    2024IndieMassively MultiplayerCasual4.99 USDSteam ↗
  5. POSTAL 2

    WHY THIS

    Priced ~90% under Project Astra Dominium on Steam right now. Shares Indie with Project Astra Dominium.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  6. Plants vs. Zombies GOTY Edition

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Strategy with Project Astra Dominium.

    Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks.

    2009Strategy4.99 USDDeck PlayableSteam ↗
  7. Buckshot Roulette

    WHY THIS

    Priced ~70% under Project Astra Dominium on Steam right now. Shares Indie and Simulation with Project Astra Dominium.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  8. Brotato

    WHY THIS

    Priced ~50% under Project Astra Dominium on Steam right now. Shares Indie with Project Astra Dominium.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project Astra Dominium.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  2. Magic Archery

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Project Astra Dominium.

    Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.

    2024IndieSimulationRPGFreeDeck PlayableSteam ↗
  3. 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!

    2016Free To PlayFreeSteam ↗
  4. Landfall Archives

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy and Indie with Project Astra Dominium.

    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!

    2023ActionStrategyIndieFreeSteam ↗
  5. SuchArt: Creative Space

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Project Astra Dominium.

    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!

    2021ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. Control, I'm Not Coming Back

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project Astra Dominium.

    Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.

    2026IndieAdventureFree To PlayFreeSteam ↗
  7. Outpath: First Journey

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project Astra Dominium.

    Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!

    2022IndieAdventureCasualFreeDeck PlayableSteam ↗
  8. South Scrimshaw, Part One

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project Astra Dominium.

    South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.

    2023IndieCasualFreeDeck PlayableSteam ↗

Frequently asked about Project Astra Dominium

Does Project Astra Dominium run on Steam Deck?
Project Astra Dominium is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Project Astra Dominium cost?
Project Astra Dominium is listed on Steam at 9.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Project Astra Dominium?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Project Astra Dominium are Rionag: Survey Fleet, Little Big Workshop, Hammerting.
Who developed Project Astra Dominium?
Project Astra Dominium was developed by Snob Entertainment UG.

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 Project Astra Dominium.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

27 Games Like Project Astra Dominium — Ranked for 2026 · imho.run