IMHO.

Games like Astro Protocol

If Astro Protocol is your kind of game, the closest matches are DeckTerra, Sid Meier's Civilization®: Beyond Earth™ and Galactic Civilizations III — picked from the ranked list below. Reviewers single out its atmospheric, challenging and intense. 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 Astro Protocol: Astro Protocol is a high-stakes, turn-based 4X space strategy game distilled into intense one-hour matches. Six factions, randomized maps, tech trees, and anomalies ensure every run is unique. Victories are earned against challenging opponents that play to win.

2026Strategy8.39 USDDeck PlayableWindows · macOS · Linuxby Null Vector Studios
Astro Protocol — Steam game cover
Players highlight
8 distinct factions with unique mechanicsBoard game style strategic depth without bloatComplete 4x games in 30 90 minutesAtmosphericChallengingIntense

Players who liked Astro Protocol also play

Steam players who put hours into Astro Protocol 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. DeckTerra

    WHY THIS

    Top pick for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    A Medieval 4X Deckbuilder. Lead a kingdom as you build your deck to conquer the map and expand your rule. Develop your technology through the middle ages to improve your army of knights and keep your peasants happy. Develop your trade, religion, science, and military to conquer the continent.

    2026StrategySteam ↗
  2. Sid Meier's Civilization®: Beyond Earth™

    WHY THIS

    Shares an atmospheric mood with Astro Protocol.

    Second-strongest match for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.

    2014Strategy9.99 USDSteam ↗
  3. Galactic Civilizations III

    WHY THIS

    Shares a challenging mood with Astro Protocol.

    Third-strongest match for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.

    2015Strategy29.99 USDDeck PlayableSteam ↗
  4. Warhammer 40,000: Gladius - Relics of War

    WHY THIS

    Shares faction politics, procedural generation and a challenging mood with Astro Protocol.

    Ranked #4 for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions.

    2018Strategy39.99 USDDeck PlayableSteam ↗
  5. Fantasy General II

    WHY THIS

    Shares an atmospheric mood with Astro Protocol.

    Ranked #5 for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    The fantasy wargaming classic is back! Lead powerful heroes and mighty armies into battle in this critically acclaimed turn-based strategy milestone. Level up and train your units and guide them through a gripping story campaign to decide the fate of a world on the brink of destruction.

    2019Strategy39.99 USDSteam ↗
  6. ENDLESS™ Legend

    WHY THIS

    Shares an atmospheric mood with Astro Protocol.

    Ranked #6 for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    ENDLESS™ Legend is a 4X turn-based fantasy strategy game by the creators of ENDLESS™ Space and Dungeon of the ENDLESS™. Control every aspect of your civilization as you struggle to save your homeworld Auriga. Create your own Legend!

    2014StrategyRPG29.99 USDDeck PlayableSteam ↗
  7. Shadow Empire

    WHY THIS

    Shares faction politics, procedural generation and a challenging mood with Astro Protocol.

    Ranked #7 for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.

    2020StrategySimulationRPG39.99 USDSteam ↗
  8. Sid Meier's Civilization® V

    WHY THIS

    Shares turn based strategy, resource management and a challenging mood with Astro Protocol.

    Ranked #8 for Astro Protocol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Astro Protocol.

    Create, discover, and download new player-created maps, scenarios, interfaces, and more!

    2010Strategy7.49 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Astro Protocol at current Steam store prices.

  1. Cookie Clicker

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    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 ↗
  2. Plants vs. Zombies GOTY Edition

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    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 ↗
  3. Your Only Move Is HUSTLE

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    Master your technique, execute flashy combos, and outsmart opponents across the world, frame-by-frame. Slow down the clock to fine-tune your fighting style in this innovative, turn-based combat simulator. Pulverize your friends and choreograph spectacular fight scenes. No training mode required.

    2023ActionStrategyIndie4.99 USDDeck PlayableSteam ↗
  4. STAR WARS™ Empire at War - Gold Pack

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?

    2010Strategy4.99 USDDeck PlayableSteam ↗
  5. Nubby's Number Factory

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    A plinko-style roguelike where you work at a number factory. Launch your spherical friend, Nubby, down a pegboard to make bigger and bigger numbers! But beware, if you fail to meet your number quota, the sun will explode.

    2025Strategy4.99 USDDeck PlayableSteam ↗
  6. Monster Train

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time.

    2020Strategy4.99 USDDeck PlayableSteam ↗
  7. Nodebuster

    WHY THIS

    Priced ~64% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    Nodebuster is a short, experimental incremental game about busting nodes and destroying reality.

    2024StrategyIndieSimulation2.99 USDDeck PlayableSteam ↗
  8. ISLANDERS

    WHY THIS

    Priced ~41% under Astro Protocol on Steam right now. Shares Strategy with Astro Protocol.

    ISLANDERS is a minimalist strategy game about building cities on colorful islands.

    2019StrategyIndieCasual4.99 USDDeck PlayableSteam ↗

Free alternatives

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

  1. Moonring

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    A dark-fantasy, turn-based, retro-fusion of classic turn-based RPGs and roguelikes, all presented with a unique neon aesthetic.

    2023RPGFreeDeck VerifiedSteam ↗
  2. Die in the Dungeon: Origins

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Astro Protocol.

    Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!

    2023StrategyIndieRPGFreeDeck VerifiedSteam ↗
  3. South Scrimshaw, Part One

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    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 ↗
  4. The Riftbreaker: Prologue

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Astro Protocol.

    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.

    2020ActionStrategyIndieFreeDeck PlayableSteam ↗
  5. Shape of Dreams: Prologue

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    《Shape of Dreams: Prologue》is a unique game that blends action roguelite with MOBA-style gameplay. Edit your character's Memories to create your own champion. Face all challenges alone or play with friends in up to 4-player co-op.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. PlanetSide 2

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.

    2012ActionMassively MultiplayerFree To PlayFreeDeck PlayableSteam ↗
  7. Limbus Company

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    As the Executive Manager of Limbus Company, lead your group of twelve Sinners, venture into the buried facilities of Lobotomy Corporation, and lay claim on the Golden Boughs.

    2023FreeDeck PlayableSteam ↗
  8. Dota Underlords

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Astro Protocol.

    Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.

    2019StrategyFree To PlayCasualFreeDeck VerifiedSteam ↗

Frequently asked about Astro Protocol

Does Astro Protocol run on Steam Deck?
Astro Protocol 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 Astro Protocol cost?
Astro Protocol is listed on Steam at 8.39 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Astro Protocol?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Astro Protocol are DeckTerra, Sid Meier's Civilization®: Beyond Earth™, Galactic Civilizations III.
Who developed Astro Protocol?
Astro Protocol was developed by Null Vector Studios.

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 Astro Protocol.

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24 Games Like Astro Protocol — Ranked for 2026 · imho.run