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Games Like Endless Castle: Under Siege

60+ similar titles based on shared tags and player behavior. Themes include Tower Defense, Casual, 2D, Singleplayer.

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  1. #1 Idle Spin&Win Tower Defense
    97% match8 user reviews75% of 8 reviews2026
    Dev: Creative idle studio
    Windows

    Idle Spin&Win is a tower defense Idler with luck based mechanics build in. As you clime the enemy waves you unlock new towers and upgrade their power and earn more XP . Collect bonus spins to test your luck. Upgrade the skill tree and research to improve your power and boost your gold.

    Why similar: Tower Defense 32.8%, Auto Battler 26.5%, Idler 21.9%, Strategy 7.1%, Resource Management 6.7%

  2. #2 Last Watchtower
    96% matchNo user reviews2026
    Dev: nija games
    Windows

    Last Watchtower is a short incremental defense game. Gather resources, pick upgrades, and unlock powerful tower abilities. Experiment with diverse builds, withstand relentless monster waves, and grow stronger with every run through permanent meta-progression.

    Why similar: Auto Battler 27.8%, Tower Defense 27%, Idler 18.7%, Strategy 7.2%, Medieval 5.4%

  3. #3 Desktop Wizard
    96% matchNo user reviews
    Dev: Wizard Guild
    Windows

    An idle tower defense game that sits at the bottom of your screen

    Why similar: Tower Defense 29.3%, Auto Battler 28.9%, Idler 19.7%, Casual 8.8%, Fantasy 3.7%

  4. #4 Legend of Defenders
    95% matchNo user reviews2026
    Dev: KaiPlay StudioPub: Gamersky Games
    Windows

    A thrilling idle tower defense game with automated battles and endless growth! Build your defenses, deploy heroes, and watch your fortress evolve from a humble outpost into an unstoppable stronghold—even while you’re away. P.S. Supports a boss key for instant hiding whenever needed.

    Why similar: Tower Defense 27.7%, Idler 19.3%, Auto Battler 17.1%, Medieval 7.9%, Strategy 7.5%

  5. #5 Bandit Simulator TD
    94% matchNo user reviews2026
    Dev: 游戏养家工作室
    Windows

    This is a "Tower Defense + Base Building" game where you establish a bandit stronghold from scratch. With "Tower defense" at its core, you can ambush travelers, develop characters through profession and equipment systems, and expand your stronghold by researching, forging, and constructing!

    Why similar: Tower Defense 35.5%, Loot 19.8%, Idler 18.7%, Strategy 8.6%, Casual 5.5%

  6. #6 idle:Doodle Realm
    94% matchNo user reviews78% of 35 reviews2026
    Dev: JIANBING
    Windows

    Idle: Doodle Realm is an idle loot-based game with equipment and relic systems. Combat plays out like a castle war, where your units automatically fight and push forward. All you need to focus on are unit synergy effects, collecting relics and equipment, and upgrading talents and buildings.

    Why similar: Tower Defense 27.4%, Idler 22.7%, Auto Battler 19.9%, Loot 16.7%, Strategy 7.6%

  7. #7 Tiny Battles
    93% matchVery Positive84% of 50 reviews2024
    Dev: MyDreamForever
    Windows

    Tiny Battles is a tactical action auto-battler where battles take place automatically in the arena.

    Why similar: Auto Battler 32.2%, Tower Defense 31.1%, Strategy 10.9%, Medieval 7.1%, Fantasy 5.7%

  8. #8 Mercenary Battlegrounds
    92% matchNo user reviews
    Dev: Saltant Studio
    Windows

    Mercenary Battlegrounds is an exciting strategy game where you have to fight and defend your base against waves of enemy forces. Immerse yourself in a fantasy world and enjoy a unique combination of tower defense, auto-battler and strategic game mechanics.

    Why similar: Tower Defense 29%, Auto Battler 28.6%, Idler 25.7%, Strategy 8.9%, Casual 5.3%

  9. #9 GreySpire
    91% match2 user reviews100% of 2 reviews2025
    Dev: BluSheep
    Windows · Linux

    Build random towers, combine them into powerful defenses, farm gold, go fishing for jackpots, and level up to get stronger every run in GreySpire!

    Why similar: Tower Defense 31.2%, Auto Battler 31%, Strategy 13.8%, Casual 10.3%, Fantasy 4.5%

  10. #10 Hang up Street
    91% matchMixed65% of 54 reviews2025
    Dev: FoxGame
    Windows

    Build your vocational academy to turn adventurers into your idle heroes, liven up the deserted streets, and advance the levels together!

    Why similar: Idler 21%, Tower Defense 18.8%, Auto Battler 18.6%, Loot 18.5%, Pixel Graphics 4.8%

  11. #11 Chippy Beaver
    90% match6 user reviews83% of 6 reviews2026
    Dev: Luv Island
    Windows

    Chippy Beaver​ is an engaging incremental idle game where you lead your beaver colony to chop down fantastical trees in the sky, harvest various relics, construct diverse buildings, and use money to upgrade your beavers.

    Why similar: Idler 26.2%, Loot 21.1%, Tower Defense 18.4%, Strategy 10.1%, Building 10%

  12. #12 Undeads vs Humans
    89% match5 user reviews86% of 6 reviews2022
    Dev: Wa TranPub: Unknown Magic
    Windows

    A Tower Defense with deck of cards. Unlock cards and build your own deck to beat the levels. Easy to play but hard to master.

    Why similar: Tower Defense 30.9%, Auto Battler 29.1%, Strategy 8.9%, Medieval 8.4%, Casual 6.5%

  13. #13 Formation Builder Idle
    89% matchNo user reviews2026
    Dev: Idle Games LLC
    Windows · Mac · Linux

    Build the ultimate hero formation on a tactical grid, then watch your team crush endless waves. Level heroes, collect mounts, farm pets, dig into mines, and prestige across 17+ worlds, all while you're away. A deeply layered idle RPG with real strategic depth.

    Why similar: Auto Battler 25.6%, Tower Defense 22%, Idler 21.6%, Strategy 7.9%, Casual 5%

  14. #14 Empire of Zombies
    88% match9 user reviews67% of 9 reviews2026
    Dev: Tomasz Letki
    Windows

    Raise an undead army and conquer the realms of the living! Empire of Zombies is a dark fantasy idle clicker where you recruit skeletons, zombies, and ghosts, build your necropolis, and crush human, elven, and barbarian kingdoms one by one.

    Why similar: Tower Defense 31.7%, Idler 25.9%, Auto Battler 19.6%, Strategy 11.2%, Fantasy 3.6%

  15. #15 Broken Banners
    87% matchVery Positive81% of 59 reviews2022
    Dev: Eirik Wiklund
    Windows

    Defend your kingdom from evil monsters in this combination of Tower Defense and Auto Battle. Place your defenses and stop the forces of evil from reaching your kingdom.

    Why similar: Tower Defense 39.3%, Auto Battler 28.7%, Strategy 12.6%, Building 8.5%, Fantasy 6%

  16. #16 Myriad Realms: Ascend to Sage
    86% matchPositive90% of 42 reviews2026
    Dev: BiranranPub: ForDream
    Windows

    An idle strategy RPG inspired by xianxia. Rise from Qi Refining to Sage, recruit heroes, master divine arts, forge gear, and conquer secret realms and endless waves. Rebirth for permanent bonuses and push your power beyond every limit.

    Why similar: Tower Defense 34.7%, Idler 21.4%, Loot 13.7%, Casual 10.5%, 2D Platformer 4.5%

  17. #17 Tiny Guild
    86% matchNo user reviews
    Dev: Blazing Fast Studios
    Windows · Linux

    Explore your guild hideout as the Guild Master, prepare your heroes, send them into automated combat expeditions, then use whatever they bring back to improve the guild.

    Why similar: Auto Battler 31.7%, Idler 23.4%, Casual 9.5%, Loot 7.4%, Medieval 7.3%

  18. #18 DragonFire: Defense
    84% match7 user reviews71% of 7 reviews2026
    Dev: DodoModoPub: RealifyGames
    Windows

    Raise and equip dragons, expand your tower, manage resources, and defend your kingdom across five enemy realms in this colorful 2D idle tower-defense game.

    Why similar: Tower Defense 28.3%, Loot 13.7%, Idler 13.3%, Auto Battler 12%, Strategy 7.6%

  19. #19 Very Very RARE
    85% matchNo user reviews2026
    Dev: Nue Games
    Windows

    Forge insanely rare turrets in an incremental idle tower defense. Hunt impossible loot, unlock powerful relics, expand your skill tree, complete quests, and discover game-breaking synergies as you chase the rarest drops imaginable.

    Why similar: Tower Defense 24.2%, Auto Battler 23.8%, Loot 19.4%, Idler 15%, Strategy 7.7%

  20. #20 Lazy Lord: War on the Desktop
    84% matchPositive95% of 22 reviews2025
    Dev: Restart Studio
    Windows

    You're the Laziest Evil Lord ever—too lazy to fight, yet destined to rule the world. Send minions (automatically), upgrade them with gold and treasures, and conquer 1,000 areas without leaving the throne. Evil has never been this effortless.

    Why similar: Tower Defense 40.2%, Idler 27%, Casual 11.4%, Medieval 7.9%, Resource Management 5.3%

  21. #21 Zero Stress King: Idle Defense
    82% matchVery Positive88% of 1,657 reviews2026
    Dev: Pauloondra
    Windows · Mac
    Median: 9.2 hrsMean: 11.5 hrs≥1hr: 96%

    A short relaxing incremental game disguised as a tower defense, but enemies can’t reach your walls. Thanks to lava.

    Why similar: Tower Defense 25.9%, Idler 22.9%, Auto Battler 19.8%, Strategy 7.5%, Resource Management 6.9%

  22. #22 A Dragon's Tale
    83% matchNo user reviews2026
    Dev: Colas Games
    Windows

    An exciting reverse Tower Defense! Defend the tower from hordes of civilians, strategically place your monsters, and take on the challenge across 3 unique modes: Story, Hardcore, and Infinity.

    Why similar: Tower Defense 34.4%, Auto Battler 34.2%, Strategy 16%, Fantasy 4.8%, 2D Platformer 4.4%

  23. #23 Crown Siege
    82% matchNo user reviews2026
    Dev: JOrbits GamesPub: 2 Left Thumbs
    Windows · Mac · Linux

    A short incremental tower defense game centered around growing and strengthening armies, to defend your kingdom and stop endless waves of enemies.

    Why similar: Tower Defense 26.7%, Auto Battler 24.9%, Idler 18.6%, Medieval 8.5%, Strategy 5.6%

  24. #24 Idle Protocol
    81% match6 user reviews17% of 6 reviews2026
    Dev: Zzz Idle Games
    Windows

    Idle Protocol is a minimalist sci-fi tower defense and incremental game. Manage a central CPU core, equip exactly 2 Nodes, and defend against geometric anomalies. Perform a System Reboot to earn Cycles and unlock permanent modules in the BIOS!

    Why similar: Tower Defense 27.8%, Auto Battler 27.6%, Idler 23.5%, Strategy 10.5%, Casual 5.8%

  25. #25 Game of Warriors
    80% matchNo user reviews
    Dev: Play365
    Windows · Mac

    Defend your city, conquer enemy lands, and build a powerful empire in this unique tower defense strategy game. Upgrade defenses and technolgy, command troops, and face massive waves, siege weapons, and war elephants as you expand across the map.

    Why similar: Tower Defense 35.2%, Auto Battler 24.2%, Strategy 11.2%, Medieval 10.7%, Casual 7%

  26. #26 Covenant Tower
    79% match3 user reviews67% of 3 reviews2026
    Dev: Pixel Crate Games
    Windows

    The Covenant Tower is an incremental tower defense game where you build your tower higher during the day, defend it with archers and catapults at night, and prevent world-ending catastrophes by fulfilling an ancient prophecy. Strategic. Satisfying. Surprisingly addictive...

    Why similar: Auto Battler 27.4%, Tower Defense 27.4%, Idler 24.4%, Medieval 9.4%, Strategy 4%

  27. #27 Little TD
    79% matchNo user reviews
    Dev: Hightea Studio
    Windows

    Escape from daily life and immerse yourself in the exciting tower defense strategy game 'Little TD'. Experience a unique gaming style in 'Little Tower Defense', with various fresh game modes that are different from traditional tower defense.

    Why similar: Tower Defense 43.7%, Idler 16.2%, Strategy 14.6%, Casual 9.4%, Building 5.5%

  28. #28 Defender of Darkness
    78% matchNo user reviews2026
    Dev: KwaKwaGames
    Windows

    An idle tower defense game: build fortifications, manage limited resources, cast spells, and decide which dark lords to save before the final battle against the forces of good. And don’t forget to raise your kraken!

    Why similar: Tower Defense 41.2%, Idler 24.2%, Strategy 13.7%, Building 6.5%, Fantasy 3.8%

  29. #29 Emoji Random Defence
    78% match1 user reviews100% of 1 reviews2025
    Dev: jewelry
    Windows · Mac

    its very hard. You can check the statistics by pressing the ESC key or after the game over. Analyze why you couldn't stop the enemies and try to clear it next time If too difficult, collect coins and purchase permanent upgrades from the shop

    Why similar: Auto Battler 34.5%, Tower Defense 34.5%, Strategy 15.9%, Casual 11.9%, 2D 1.7%

  30. #30 Pixel Empires
    77% matchMostly Negative33% of 21 reviews2026
    Dev: PiqFocus Interactive
    Windows

    A pixel idle tower defense where your kingdom fights on its own. Workers gather, your army auto-battles endless waves, spells self-cast — you aim the bow, chain combos and choose what to upgrade. Bosses, titans, prestige, 100+ achievements. The night is endless. The bow is yours.

    Why similar: Tower Defense 29.2%, Auto Battler 22.7%, Idler 22.3%, Resource Management 7.4%, Casual 5.7%

  31. #31 Polygon War
    77% match1 user reviews100% of 1 reviews2025
    Dev: MVP Games
    Windows

    In this roguelike, idle and strategy game, you're in the middle of a polygonal war, with a turret and countless enemies. Are you ready to overcome the challenges ahead?

    Why similar: Auto Battler 31.6%, Tower Defense 31%, Idler 21.2%, Strategy 10.6%, Combat 2.3%

  32. #32 Idle Monster TD
    76% matchMostly Positive72% of 855 reviews2021
    Dev: Swell Games LLC
    Windows · Mac
    Median: 6.6 hrsMean: 162.2 hrs≥1hr: 74%

    An endless Tower Defense game of epic Monsters vs evil War Machines. Unlock and upgrade tons of unique elemental Monsters (Water, Air, Earth, and Fire) to defend your home from an infinite swarm of robots. Strategize the most effective placement of Monsters to synergize their elemental abilities.

    Why similar: Tower Defense 34.8%, Idler 24.6%, Strategy 9.1%, Resource Management 7.1%, Fantasy 6.1%

  33. #33 Galaxy Pirates
    76% matchNo user reviews
    Dev: Chubby Horse Games
    Windows

    An idle auto-battler that fights epic battles in the corner of your screen while you conquer your day. Complete missions, build your hero squad, unlock new weapons, skills and upgrades. Assemble your own pirate crew and set sail among the stars!

    Why similar: Tower Defense 30%, Auto Battler 28.5%, Idler 24.4%, Strategy 9.2%, Casual 4.7%

  34. #34 Miracle Brave: Beast Defense Line
    74% matchMixed46% of 13 reviews2026
    Dev: 1029studio
    Windows

    Endless tides of beasts crash against your fortress, yet never breach your line. Fight alongside your brave companions, reap the invaders, and grow stronger with every battle. Rise to meet the next wave with greater might—reap, strengthen, reap again. The cycle never ends.

    Why similar: Tower Defense 29.8%, Auto Battler 22.8%, Idler 22.4%, Strategy 7.3%, Casual 6%

  35. #35 Castle Push
    75% match3 user reviews100% of 3 reviews2023
    Dev: Blue Cat studio
    Windows

    Castle Push is a fantasy and strategy game developed by Blue Cat Studio. Play the classic browser strategy. Complete all levels and unlock all possible achievements in this game. And listen to the best music from Haindale.

    Why similar: Tower Defense 32.6%, Auto Battler 32.1%, Strategy 9.3%, Medieval 8%, Casual 6.7%

  36. #36 Tiny Idle
    74% match1 user reviews100% of 1 reviews2026
    Dev: Logan Halco
    Windows

    An auto-battler idle roguelike where your army fights on its own. Recruit 20+ unit types, collect items across 7 rarity tiers, forge Mythics, and push through endless waves of enemies. Runs in the corner of your screen - or dive in and command your forces.

    Why similar: Auto Battler 34.2%, Idler 23.1%, Loot 12.5%, Casual 11.1%, Strategy 10.3%

  37. #37 Don’t Idle: TD
    75% matchNo user reviews2026
    Dev: Lil knee Games
    Windows

    This is an idle auto-battle tower defense game that runs quietly in the corner of the screen while you are busy with other things.

    Why similar: Tower Defense 48%, Idler 30.2%, Pixel Graphics 6.5%, Strategy 4.9%, Combat 3.9%

  38. #38 Last Hope: Zombie Autobattler
    72% match9 user reviews100% of 9 reviews2026
    Dev: Hands-Off Games
    Windows

    Sit back and let your towers do the killing! Evolve 12 unique towers to discover 144 devastating synergies. Obliterate the endless zombie horde before they reach your base, secure your loot, and dominate the bullet hell.

    Why similar: Tower Defense 29.8%, Auto Battler 29.4%, Idler 20%, Resource Management 5.8%, Strategy 5.4%

  39. #39 Cell Defense
    73% matchNo user reviews2026
    Dev: blaubessen
    Windows · Mac

    Cell Defense is an incremental tower defense set inside the body. One antibody holds the center as endless waves of viruses and bacteria close in. Survive, earn, and spend it on weapons, build-defining cards, and upgrades that keep paying out while you idle.

    Why similar: Tower Defense 38.1%, Idler 24.1%, Auto Battler 15%, Strategy 10.9%, Resource Management 7.4%

  40. #40 Defender of Grids
    73% matchNo user reviews2026
    Dev: Wooden Pillow GamesPub: Nue Games
    Windows

    A pixel-perfect Tower Defense game where defeat is just the beginning. Master the rock-paper-scissors balance of combat, speed up the action with 4x speed, and use your hard-earned XP to unlock powerful permanent skills. Can you hold the line?

    Why similar: Tower Defense 33.1%, Auto Battler 26.5%, Idler 22.5%, Strategy 9.4%, Casual 4.9%

  41. #41 Protect the Pit
    73% matchNo user reviews2026
    Dev: atomcoPub: Rogue Duck Interactive
    Windows

    Attack with your cursor, build towers and walls to defend your pit! An incremental clicker that combines tower defense, maze building, and large upgrade trees. Earn money, upgrade your defenses, and build winding mazes to stop the hordes of the Dark Forest.

    Why similar: Tower Defense 27.7%, Auto Battler 22.8%, Idler 18.7%, Medieval 7.6%, Strategy 7%

  42. #42 Bottom Squad
    71% matchMixed63% of 16 reviews2026
    Dev: Family Devs
    Windows

    An idle defense game at the bottom of your screen. Build your squad, upgrade your base, and hold the line against relentless alien waves while you work or browse.

    Why similar: Tower Defense 31.5%, Idler 27.2%, Auto Battler 27.1%, Casual 6%, Strategy 5.5%

  43. #43 NodalBastion
    72% matchNo user reviews2026
    Dev: BNStudio
    Windows · Linux

    Defend the last AI core in a minimalist incremental game as you manage resources, upgrade your network, and unleash powerful skills. Resist humanity’s onslaught!

    Why similar: Tower Defense 45.3%, Idler 29.5%, Resource Management 11.4%, Strategy 9.5%, Casual 2.3%

  44. #44 希望之城 The City Of Hope
    71% matchMixed67% of 130 reviews2024
    Dev: 家里蹲工作室
    Windows

    A light city-building game that combines elements of card games and tower defense, where players must survive daily enemy attacks and gradually grow their strength to ultimately defeat powerful invaders.

    Why similar: Tower Defense 27.2%, Idler 22.5%, Auto Battler 19.6%, Medieval 8.2%, Strategy 8%

  45. #45 Idle Hero TD - Tower Defense RPG
    70% matchVery Positive83% of 1,282 reviews2024
    Dev: Swell Games LLC
    Windows · Mac
    Median: 3.5 hrsMean: 199.9 hrs≥1hr: 70%

    Endless Idle Tower Defense with deep strategy and RPG progression and combat mechanics. Recruit, upgrade, and position powerful fantasy heroes, discover game-changing synergies, and survive infinite monster waves. Grow stronger every run with literally millions of upgrades and endless auto battles.

    Why similar: Tower Defense 27.7%, Auto Battler 23.1%, Idler 19.7%, Strategy 7.4%, Resource Management 5.9%

  46. #46 Idle Monster TD: Evolved
    71% matchMostly Positive76% of 1,249 reviews2022
    Dev: Monstermob USA, INC
    Windows · Mac
    Median: 3.7 hrsMean: 128.3 hrs≥1hr: 65%

    Evolve epic monsters and crush puny humans in this endless idle tower defense game! Unlock, upgrade, and evolve over 150 unique monsters and pets, ranging from cute and colorful flower creatures to epic fire breathing dragons, to assemble the ultimate team against the endless waves of enemies.

    Why similar: Tower Defense 29.9%, Auto Battler 24.3%, Idler 22.3%, Strategy 7%, Fantasy 4.7%

  47. #47 Explodey Towers
    69% match1 user reviews100% of 1 reviews2026
    Dev: MangoStick
    Windows

    Build, upgrade, EXPLODE! Build and manage your tower defenses to fend of relentless waves of enemies in this small tower defense game!

    Why similar: Tower Defense 30.4%, Auto Battler 28.5%, Loot 12.4%, Medieval 10.2%, Strategy 5.9%

  48. #48 Arcane Towerline
    70% matchNo user reviews
    Dev: Tara
    Windows

    Arcane Towerline is a roguelite tower defense blending auto-battler synergies. On a dynamic battlefield, draft powerful 1-to-5 cost units to build a formidable lineup. Defend your crystal from swarms of enemies using tactical positioning and random game-changing magic!

    Why similar: Tower Defense 48.4%, Auto Battler 28%, Strategy 11.4%, Casual 5%, Pixel Graphics 3.9%

  49. #49 Open The Gate: Just A Little
    68% matchPositive83% of 30 reviews2026
    Dev: Abubu DancePub: The Bueno Interactive
    Windows · Mac

    Medieval Tower Defense and Real-time Strategy hybrid where positioning, gold farming and tower capturing decide the outcome against waves of legions and dragons.

    Why similar: Tower Defense 31.5%, Idler 19.1%, Auto Battler 18.8%, Medieval 9.9%, Fantasy 6.2%

  50. #50 Idle Defense
    69% match6 user reviews50% of 6 reviews2026
    Dev: Tiny Loop Games
    Windows

    Endless cubes. Seven colors, seven currencies. Click to crush or build auto-turrets. Upgrades, prestige system, perks, and boss waves. Neon minimalism. Endless progression.

    Why similar: Tower Defense 27.2%, Idler 23.6%, Auto Battler 21.7%, Strategy 12.3%, Resource Management 6.6%

  51. #51 Loot Goblins
    70% matchNo user reviews2026
    Dev: SunWillShineGames
    Windows

    Crack open chests, chain buffs and recruit the ultimate goblin crew in this fast-paced incremental auto-battler. Send them deeper into dungeons. Get better loot. Repeat!

    Why similar: Auto Battler 28.9%, Loot 21.5%, Idler 18.9%, Strategy 7.8%, Fantasy 5.1%

  52. #52 LazyLegions
    68% match8 user reviews75% of 8 reviews2026
    Dev: SteelWindGames
    Windows · Mac

    Like desktop idle games such as TASKBARHERO? Try a new take focused on online co-op for up to 8 players, squad progression, and auto-battles. Recruit different classes with friends, fight in a transparent always-on-top desktop world, and unlock skills and gear while you work, study, or browse.

    Why similar: Auto Battler 28.5%, Idler 20.5%, Loot 19%, Medieval 8.3%, Strategy 5.6%

  53. #53 Portal Defense
    69% matchPositive82% of 22 reviews2022
    Dev: Stealthy Wolves Studios LLC
    Windows

    Our game is a basic tower defense game where monsters are coming in through a portal are trying to destroy your tower! The only way to stop them is to send out your units, level up your tower and try to outwit them!

    Why similar: Tower Defense 53.3%, Strategy 18%, Medieval 9.3%, Pixel Graphics 7.4%, Fantasy 5.9%

  54. #54 Godcore
    68% matchNo user reviews2026
    Dev: Topius
    Windows

    A minimalist hero‑driven incremental tower defense game. You are an Einherjar guarding the Godcore crystal as Helheim’s horde rises to break it and reach Midgard.

    Why similar: Tower Defense 28.9%, Auto Battler 28.6%, Idler 16.5%, Strategy 13.1%, Casual 7%

  55. #55 Desktop Siege
    67% matchMixed68% of 39 reviews2025
    Dev: PaniCer
    Windows

    《Desktop Siege》 is a free tower defense idle game you can play on your desktop. Upgrade your base and defense towers to protect against endless waves of monsters!

    Why similar: Tower Defense 44.3%, Idler 37.5%, Casual 11.4%, Pixel Graphics 6.8%

  56. #56 The Wall Mustn't Fall
    67% matchVery Positive91% of 68 reviews2023
    Dev: CapsuleCollapse
    Windows

    You will select a hero with unique abilities. As you defend your castle, you will earn money and loot. This will allow you to upgrade your castle and recruit AI controlled allies to synergize with and equip them with weapons and relics. You may also choose to allow the AI to control your hero.

    Why similar: Tower Defense 30.6%, Auto Battler 26.8%, Idler 16.2%, Loot 15.1%, Strategy 7.1%

  57. #57 TeeDee
    67% matchPositive80% of 25 reviews2025
    Dev: NIHmpact
    Windows

    A minimalist 2D tower defense game with 3 towers, 6 maps, and 4 monster types. Simple, fun, and perfect for quick strategy sessions!

    Why similar: Tower Defense 48.7%, Strategy 21.1%, Medieval 10.6%, Fantasy 7.7%, Pixel Graphics 7.6%

  58. #58 Kingdom of Foundry
    67% matchNo user reviews
    Dev: Manggo Games
    Windows

    Kingdom of Foundry is a pixel-style tower defense meat pigeon game. In the game, you will play as the king of a city-state, and ensure the safety and stability of the city-state by dealing with different events in each battle and recruiting different types of soldiers to repel waves of demons.

    Why similar: Tower Defense 49.3%, Strategy 16.6%, Medieval 12.9%, Pixel Graphics 7.3%, Combat 4%

  59. #59 Take Your Throne
    65% match3 user reviews67% of 3 reviews2026
    Dev: Grozny23Pub: SGS
    Windows

    A Tower Defense-style game. Take a strong stance and defend your throne against the brazen and utterly shameless claims of your enemies. With each level, your opponents will become increasingly resourceful... be prepared for anything... from formal charges to an angry mob!

    Why similar: Tower Defense 43.7%, Idler 36%, Strategy 15.5%, Casual 4.1%, Singleplayer 0.7%

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Endless Castle: Under Siege cover art

Games Like Endless Castle: Under Siege

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