IMHO.

Games like PlanetForge Protocol

If PlanetForge Protocol is your kind of game, the closest matches are TechGuardian: Territory Defense, Null Keeper and Mandate Order — 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.

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About PlanetForge Protocol: This is a strategy game that combines automated base construction with real-time tower defense. Land on a harsh alien planet, construct a vast automated industrial assembly line from scratch, and transform it into a formidable front capable of withstanding a massive influx of enemies.

StrategyIndieSimulationWindowsby Railstar Games
PlanetForge Protocol — Steam game cover

Players who liked PlanetForge Protocol also play

Steam players who put hours into PlanetForge 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. TechGuardian: Territory Defense

    WHY THIS

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

    This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.

    2025StrategyIndieSimulation1.91 USDSteam ↗
  2. Null Keeper

    WHY THIS

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

    Run an evil asteroid base in the void. Dig, claim, and build your lair, summon entities through Warp Rifts, and repel the Vanguard raids hammering your Void Core — while MALACHAR, your AI narrator, judges your every move.

    StrategyIndieSimulationSteam ↗
  3. Mandate Order

    WHY THIS

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

    Mandate Order is a Warring States war city-builder set in ancient China. Build a stronghold, manage industries and logistics, recruit scholars from the Hundred Schools of Thought, raise armies, and command real-time tactical battles with thousands of soldiers.

    2026StrategyIndieSimulation16.99 USDSteam ↗
  4. Mob Factory

    WHY THIS

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

    Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.

    2023StrategySimulation14.99 USDDeck PlayableSteam ↗
  5. Calyx

    WHY THIS

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

    A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?

    2026StrategyEarly Access24.99 USDDeck PlayableSteam ↗
  6. Anno 2205™

    WHY THIS

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

    In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.

    2015StrategySimulation39.99 USDDeck PlayableSteam ↗
  7. Outworld Station

    WHY THIS

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

    Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.

    2025StrategyIndieSimulation18.99 USDDeck PlayableSteam ↗
  8. Dyson Sphere Program

    WHY THIS

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

    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 ↗

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 PlanetForge Protocol.

    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 PlanetForge Protocol.

    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 PlanetForge Protocol.

    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 PlanetForge Protocol.

    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. Aircar

    WHY THIS

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

    A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.

    2019IndieFree To PlayCasualFreeSteam ↗
  7. Outpath: First Journey

    WHY THIS

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

    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. The Riftbreaker: Prologue

    WHY THIS

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

Frequently asked about PlanetForge Protocol

What games are most similar to PlanetForge Protocol?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside PlanetForge Protocol are TechGuardian: Territory Defense, Null Keeper, Mandate Order.
Who developed PlanetForge Protocol?
PlanetForge Protocol was developed by Railstar Games and published by 2P Games.

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 PlanetForge Protocol.

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

16 Games Like PlanetForge Protocol — Ranked for 2026 · imho.run