IMHO.

Games like Open The Gates!

If Open The Gates! is your kind of game, the closest matches are Stronghold: Warlords, Stronghold Crusader HD (2012) and Renaissance Kingdom Wars — picked from the ranked list below. Reviewers single out its challenging, retro and whimsical. 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 Open The Gates!: Build, manage and defend your medieval castle in this crazy sidescroller RTS game. Build walls, towers and traps to protect your fortress from enemy sieges before launching your own. Command powerful siege weapons and design the perfect strategy to take back the empire.

2022StrategyIndieSimulation12.99 USDWindowsby Robin van der Horst
Open The Gates! — Steam game cover
Players highlight
City management layer feels intentionally opaqueHumorous voice acting stands outNew mechanics introduced frequently per levelChallengingRetroWhimsical

Players who liked Open The Gates! also play

Steam players who put hours into Open The Gates! 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. Stronghold: Warlords

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Top pick for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Open The Gates!.

    Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!

    2021StrategySimulation39.99 USDDeck PlayableSteam ↗
  2. Stronghold Crusader HD (2012)

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Second-strongest match for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Open The Gates!.

    The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.

    2013StrategySimulation9.99 USDDeck PlayableSteam ↗
  3. Renaissance Kingdom Wars

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Third-strongest match for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Open The Gates!.

    The year is 1510. As wars rage across Europe, Africa, and the Middle East, it is the age of gunpowder and mercenaries - that changed the course of history. You can do it as well, going from a leader of men to the ruler of an empire in this unique mix of RTS and grand strategy.

    2024ActionStrategyIndie19.99 USDDeck PlayableSteam ↗
  4. Northgard: Definitive Edition

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Ranked #4 for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Open The Gates!.

    Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!

    2018StrategyIndieAdventure34.99 USDDeck PlayableSteam ↗
  5. Age of Empires® III (2007)

    WHY THIS

    Ranked #5 for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Open The Gates!.

    Microsoft Studios brings you three epic Age of Empires III games in one monumental collection for the first time.

    2012StrategySimulationDeck PlayableSteam ↗
  6. Becastled

    WHY THIS

    Ranked #6 for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Open The Gates!.

    Build a castle by day and defend it by night. Becastled blends cozy city-building with challenging tower defense strategy. Lead the Sun Kingdom’s last stand against the Moon Beasts and end the ancient conflict between light and darkness!

    2025StrategyIndie19.99 USDDeck VerifiedSteam ↗
  7. Territory: Farming and Warfare

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Ranked #7 for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Open The Gates!.

    From a small village of a dozen people to a small kingdom of thousands of people. Arrange for residents to work, gathering, fishing and hunting, farming and mining, processing and manufacturing. Trade, accumulate supplies, increase your strength, and fight evil forces and monsters.

    2026StrategyIndieSimulation14.99 USDDeck PlayableSteam ↗
  8. Diplomacy is Not an Option

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Ranked #8 for Open The Gates! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Open The Gates!.

    Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?

    2024ActionStrategyIndie29.99 USDDeck PlayableSteam ↗

Reviewers mention these as similar to Open The Gates!

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. Stronghold Crusader HD (2012)

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Reviewers of Open The Gates! cross-mention this title as a similar play. Shares Strategy and Simulation with Open The Gates!.

    The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.

    2013StrategySimulation9.99 USDDeck PlayableSteam ↗
  2. KINGDOMS

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Reviewers of Open The Gates! cross-mention this title as a similar play. Shares Indie and Simulation with Open The Gates!.

    KINGDOMS is a procedural medieval RPG in a randomly generated open world. The main feature of KINGDOMS is a smart AI system that completely controls NPC behavior. As the player, you can fully interact with this massive world and become any person you want to be.

    2015ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  3. Circle Empires

    WHY THIS

    Reviewers of Open The Gates! cross-mention this title as a similar play. Shares Strategy and Indie with Open The Gates!.

    Circle Empires is a fresh take on the RTS genre, featuring a fast-paced approach to conquering the world.

    2018StrategyIndieCasual8.99 USDDeck PlayableSteam ↗
  4. Stronghold: Definitive Edition

    WHY THIS

    Shares a challenging mood with Open The Gates!.

    Reviewers of Open The Gates! cross-mention this title as a similar play. Shares Strategy and Simulation with Open The Gates!.

    Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.

    2023StrategySimulation14.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Open The Gates! at current Steam store prices.

  1. Garry's Mod

    WHY THIS

    Priced ~62% under Open The Gates! on Steam right now. Shares Indie and Simulation with Open The Gates!.

    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 ~62% under Open The Gates! on Steam right now. Shares Indie with Open The Gates!.

    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. Sid Meier's Civilization® V

    WHY THIS

    Priced ~42% under Open The Gates! on Steam right now. Shares Strategy with Open The Gates!.

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

    2010Strategy7.49 USDDeck PlayableSteam ↗
  4. Slay the Spire

    WHY THIS

    Priced ~52% under Open The Gates! on Steam right now. Shares Strategy and Indie with Open The Gates!.

    We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!

    2019StrategyIndie6.24 USDDeck VerifiedSteam ↗
  5. Cookie Clicker

    WHY THIS

    Priced ~62% under Open The Gates! on Steam right now. Shares Strategy and Indie with Open The Gates!.

    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 ↗
  6. WEBFISHING

    WHY THIS

    Priced ~62% under Open The Gates! on Steam right now. Shares Indie with Open The Gates!.

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

    2024IndieMassively MultiplayerCasual4.99 USDSteam ↗
  7. POSTAL 2

    WHY THIS

    Priced ~92% under Open The Gates! on Steam right now. Shares Indie with Open The Gates!.

    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 ↗
  8. Plants vs. Zombies GOTY Edition

    WHY THIS

    Priced ~62% under Open The Gates! on Steam right now. Shares Strategy with Open The Gates!.

    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 ↗

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 Open The Gates!.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  2. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Open The Gates!.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  3. The Looker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Open The Gates!.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  4. Sheepy: A Short Adventure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Open The Gates!.

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  5. Virtual Cottage

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Open The Gates!.

    Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.

    2020IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  6. Magic Archery

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Open The Gates!.

    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 ↗
  7. 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 ↗
  8. Z.A.T.O. // I Love the World and Everything In It

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Open The Gates!.

    USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.

    2025IndieAdventureFree To PlayFreeDeck VerifiedSteam ↗

Frequently asked about Open The Gates!

How much does Open The Gates! cost?
Open The Gates! is listed on Steam at 12.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Open The Gates!?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Open The Gates! are Stronghold: Warlords, Stronghold Crusader HD (2012), Renaissance Kingdom Wars.
Who developed Open The Gates!?
Open The Gates! was developed by Robin van der Horst.

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 Open The Gates!.

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