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Games Like Circuit Defender

60+ similar titles based on shared tags and player behavior. Themes include Action, Strategy, Tower Defense, FPS.

Similar Games

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  1. #1 Vironics
    97% matchNo user reviews2026
    Dev: Dragon Flame Games LLC
    Windows

    Control a Nanite body from a space station to gather Nanite resources on Earth, seized by a rogue AI. Build and fortify your dropbase with turrets and defenses, fight waves of robotic enemies, and collect Nanites for extraction, balancing fast FPS combat with strategic tower placement.

    Why similar: Tower Defense 21.4%, FPS 12.3%, Shooter 7.8%, Base Building 7%, Futuristic 6.9%

  2. #2 Sanctum 2
    96% matchVery Positive90% of 14,356 reviews2013
    Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
    Windows · Mac · Linux
    Median: 2.8 hrsMean: 6.7 hrs≥1hr: 85%

    Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

    Why similar: Tower Defense 38.4%, FPS 16.6%, Co-op 13.8%, Online Co-Op 7.9%, Strategy 5.3%

  3. #3 Sanctum
    96% matchVery Positive89% of 3,340 reviews2011
    Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
    Windows · Mac
    Median: 1.8 hrsMean: 7.4 hrs≥1hr: 62%

    You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.

    Why similar: Tower Defense 42.2%, FPS 14.8%, Co-op 12.4%, Online Co-Op 6.6%, Strategy 6.4%

  4. #4 Forg
    95% match1 user reviews100% of 1 reviews2024
    Dev: Four Games
    Windows

    Defend the furnace from waves of goblins by building and upgrading in an FPS tower defense.

    Why similar: Tower Defense 26.7%, FPS 17.2%, PvE 11.2%, Base Building 8.4%, Shooter 8.3%

  5. #5 Federation Mycha
    94% match1 user reviews0% of 1 reviews2024
    Dev: Derpy Nerd Studios
    Windows

    Step into a world over run with Mycha, a strange mineral with seemingly magical powers. Clear monster-infested environments and protect researchers on your own or with up to three other players online. Welcome to The Federation.

    Why similar: FPS 15.3%, Online Co-Op 14.8%, Co-op 14%, PvE 9.6%, Futuristic 9.4%

  6. #6 REPLICORE
    94% matchNo user reviews
    Dev: Amberdive Interactive
    Windows

    Replicore is a 1-4 player co-op shooter where you transform into the spherical Core: roll through tunnels, dash between cover, and launch your teammates at enemy robots for explosive takedowns. The shapeshift shooter with cooperative mobility.

    Why similar: FPS 20.3%, Online Co-Op 19%, PvE 12.3%, Co-op 11.4%, Sci-fi 8.9%

  7. #7 Defender Of Falyndor
    93% matchNo user reviews
    Dev: Larrabee Game Studio
    Windows

    Defender OF Falyndor is a First-Person Tower Defense game in Virtual Reality! Take control of your character, towers, and much more to protect Falyndor from waves of invasions to become the ultimate Defender of Falyndor!

    Why similar: Tower Defense 22.5%, FPS 13.3%, Online Co-Op 9.2%, Robots 7.9%, Sci-fi 7.5%

  8. #8 Iron grid
    92% matchNo user reviews
    Dev: Iscreamdye
    Windows

    Unlock new towers based on enemy types encountered. Construct towers to hold the line and survive waves. Position defenses strategically to control enemy paths. Defend base and mining stations. Destroy enemy monoliths to gain control over battlefield. Build the colossal superweapon Iron Grid

    Why similar: Tower Defense 31%, FPS 17.8%, Base Building 11.1%, Building 11%, Sci-fi 8.1%

  9. #9 Technitive
    91% matchNo user reviews
    Dev: Cybernetic Studios LLC
    Windows

    Technitive is a first-person open world tower defense set in 2043, where you advance from primitive tools to machines and modern weapons. A colonization attempt is set on an Earth-like planet after an extinction threat to Earth. Colonize the planet and save mankind!

    Why similar: Tower Defense 28.1%, FPS 16.8%, Base Building 9.3%, Futuristic 9%, Strategy 7.8%

  10. #10 Robotica
    91% matchNo user reviews
    Dev: SWADER
    Windows

    Play with friends and defend The Tower from corrupt robotic organisms.

    Why similar: Tower Defense 21.5%, FPS 12.4%, Base Building 10.1%, Online Co-Op 8%, Futuristic 7.6%

  11. #11 Project VTS
    90% match7 user reviews86% of 7 reviews2024
    Dev: DT3 Digital
    Windows

    Project VTS is a real-time TD game. You'll need to build your defence around your base and defend against different enemies from all directions in various terrains of the alien planet.Use your turrets, obstacles, power supply, resource facillities to defend your base.

    Why similar: Tower Defense 35.5%, Base Building 19%, Building 12.9%, Futuristic 12.1%, Strategy 7.8%

  12. #12 Playground Mayhem
    89% match3 user reviews100% of 3 reviews2024
    Dev: WindShift Studio
    Windows

    Defend your base solo or with friends against endless waves of foes using your weapons and turrets. Are you up for the challenge?

    Why similar: Tower Defense 29.9%, Co-op 17.3%, Base Building 17.3%, PvE 11.7%, Strategy 8.6%

  13. #13 BioFusion
    89% matchPositive90% of 20 reviews2024
    Dev: Pcubed VR
    Windows

    BioFusion is a VR co-op multiplayer, PvE, first-person-shooter, tower defense game. Swing on a grappling hook, ride a hovercraft, throw grenades, collect buffs, build towers and traps. Do what you must to keep the mutants from the Spores of Evolution.

    Why similar: Tower Defense 22.8%, FPS 14.4%, Base Building 12.4%, PvE 9.7%, Shooter 7%

  14. #14 Nonsense Defense
    88% matchNo user reviews2026
    Dev: Sumoa Slush LLC
    Windows

    Roguelite tower defense with moveable chaos. Build towers and troops, drag them mid battle, dash through danger, and defend your crystal solo or with up to three friends in online co op.

    Why similar: Tower Defense 32.1%, Online Co-Op 17%, Co-op 15%, Base Building 12.3%, PvE 8.3%

  15. #15 Dwarfare: All For The Forge
    87% match6 user reviews67% of 6 reviews2026
    Dev: Blanc Smith Studios
    Windows

    Be the dwarf you know you are! Build towers to protect the beacons and keep production in motion! Use your weapons to corner any enemies that scrape through. Do it- do it ALL FOR THE FORGE!!

    Why similar: Tower Defense 34.7%, FPS 19%, PvE 12.5%, Strategy 10.3%, Shooter 9.1%

  16. #16 Charge!
    86% match1 user reviews100% of 1 reviews2025
    Dev: Honor Games®
    Windows

    Light it up in CHARGE!, the laser tag-inspired sport of the future! Let loose in arena-style first-person shooter action to bounce around buildings, modify your laser weapons to bend light, and take on your friends in quick matches for territory dominance.

    Why similar: FPS 19.1%, Online Co-Op 17.6%, Co-op 16.6%, Shooter 8%, Sci-fi 7.9%

  17. #17 Puropu Defense Squad
    86% matchMixed60% of 29 reviews2024
    Dev: PlayTogether Studio
    Windows · Mac · Linux

    Defend your world as sentient Props in Puropu Defense Squad! Build, upgrade, and evolve your heroes to crush waves of filthy humans worldwide. Dive into a unique mix of third-person action and tower defense—solo or with friends—in an endlessly replayable co-op campaign!

    Why similar: Tower Defense 27.9%, Co-op 15.4%, Online Co-Op 14.9%, Building 8.7%, Robots 7.6%

  18. #18 Autothysis
    84% matchNo user reviews
    Dev: Somniare Studios
    Windows · Mac

    Autothysis is a first-person tower defense game where strategy meets precision. Deploy turrets, manage resources, and fight swarms of insectoid enemies. Target weak points to shatter foes while upgrading defenses to survive escalating waves. Can you withstand the oncoming horde?

    Why similar: Tower Defense 29.7%, FPS 17.1%, Sci-fi 10.6%, Futuristic 9.1%, Strategy 7.7%

  19. #19 Stellar Survivor
    85% matchMixed66% of 175 reviews2019
    Dev: Sticks & Stones
    Windows

    Stranded on an alien planet, you must defend your Powercore! Use your weapons to fight hordes of alien enemies and strategically use traps in this new FPS tower-defense survival game!

    Why similar: Tower Defense 25.5%, Co-op 19.7%, FPS 10.1%, Strategy 9.4%, Sci-fi 7.8%

  20. #20 Azeriom
    84% match4 user reviews100% of 4 reviews2023
    Dev: Arcan Studios
    Windows

    First / third person multiplayer shooter with single and multiplayer AI bots and monster, premade and procedural environments.

    Why similar: FPS 27.4%, Online Co-Op 16%, Shooter 12.3%, PvE 10%, Action 8%

  21. #21 Rise of the Cones: Planetary Defense
    83% matchNo user reviews2026
    Dev: Baris Lab
    Windows

    Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop. Build towers, shape them with branching upgrades, and figure out how to hold the line.

    Why similar: Tower Defense 32.5%, Base Building 20.2%, Sci-fi 10.9%, Strategy 10.6%, Building 7.3%

  22. #22 Starship Troopers: Extermination
    81% matchMostly Positive80% of 32,811 reviews2024
    Dev: Offworld
    Windows
    Median: 4.9 hrsMean: 17.7 hrs≥1hr: 86%

    Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

    Why similar: Online Co-Op 13.6%, Base Building 13.5%, FPS 13.3%, Co-op 12.4%, Sci-fi 8.7%

  23. #23 Shooter Buddies
    82% matchNo user reviews
    Dev: David Chris K
    Windows

    A fast paced, Sci-Fi first person shooter. Up to 4 buddies defend the planetary core against an onslaught of robots!

    Why similar: Tower Defense 27%, FPS 20%, Co-op 17.9%, Sci-fi 13.2%, Shooter 10.1%

  24. #24 Desolorian Defenses
    82% matchNo user reviews
    Dev: Open Mirror
    Windows

    An asynchronous multiplayer tower defense game were you either maze towers to defend against other players robots and/or assemble your robots and invade other players mazes.

    Why similar: Tower Defense 34.5%, Strategy 15.5%, Futuristic 13.4%, Base Building 13%, Robots 10.9%

  25. #25 ASTRAL
    80% match8 user reviews63% of 8 reviews2026
    Dev: GURACORP®
    Windows

    ASTRAL is a first-person shooter set in a futuristic universe. Embody a GRD robot and engage adversaries in dynamic environments, spanning Earth and Off-World locations. Utilize comprehensive weapon customization to craft your personalized loadout, preparing you for intense kinetic action.

    Why similar: FPS 24.8%, PvE 15.3%, Shooter 11.2%, Robots 8%, Sci-fi 7.7%

  26. #26 Factory Defense
    81% matchNo user reviews
    Dev: KV4 STUDIO
    Windows

    Factory Defence - is a first-person shooter in which you build automated factories and defend them. Plan your factory and defensive structures to take the enemy by surprise. Explore and colonize the planet alone or with friends.

    Why similar: Tower Defense 24.7%, FPS 15.1%, Co-op 13.4%, Building 10.8%, Base Building 9.3%

  27. #27 DOLLMAKER 2
    79% matchNo user reviews
    Dev: STH
    Windows

    DOLLMAKER 2 is an FPS Tower Defense game where you, a lucky Fisher Co. recruit, help develop cutting edge weaponry at the acclaimed Willoughby Headquarters by fighting monsters.

    Why similar: Tower Defense 29%, FPS 16.6%, Base Building 12.8%, PvE 10.9%, Shooter 8.8%

  28. #28 Blinding Light
    79% matchNo user reviews
    Dev: Digital Sapphire
    Windows · Mac · Linux

    A cooperative action tower defense and third-person shooter where vision is mutually exclusive. Place towers to shine light on the endless horde of bugs, or use augmented vision to fight alongside defenses. Equip powerful modules that unleash your strategy's true potential!

    Why similar: Tower Defense 22.4%, Co-op 13.3%, Online Co-Op 13.2%, Futuristic 10.5%, PvE 9.4%

  29. #29 Stranded With Darkness
    78% match1 user reviews100% of 1 reviews2025
    Dev: Feather Force Studio
    Windows

    From an Indie developer in Sweden we bring you Stranded With Darkness. A base building tower-defense like game, with up to 4 player online CO-OP. Stranded on a desert like planet, gather resources during the day, defend the SOS transmitter during the night. Survive as many days as possible.

    Why similar: Tower Defense 25.8%, Online Co-Op 17%, Base Building 16.1%, FPS 11.9%, Sci-fi 9.8%

  30. #30 Rogue Point
    76% matchMixed70% of 692 reviews2026
    Dev: Crowbar CollectivePub: Team17
    Windows
    Median: 2.2 hrsMean: 4.1 hrs≥1hr: 78%

    From the creators of Black Mesa: Welcome to Rogue Point! A 4-player co-op shooter where teamwork is everything. Join forces on intense missions with evolving objectives and powerful upgrades. Plan, Adapt, and Overcome. Your squad’s survival depends on it.

    Why similar: Co-op 20.1%, FPS 17%, PvE 14.1%, Online Co-Op 12.1%, Shooter 8.4%

  31. #31 Portal Sentinels
    77% matchNo user reviews2026
    Dev: Astrow Games
    Windows · Linux

    Portal Sentinels is a pixel-art, grid-based tower defense blending labyrinthine strategy and rich tower evolution. Play solo or with friends to thin out the army of the void before the horde reaches its destination.

    Why similar: Tower Defense 34.1%, Base Building 19.8%, Strategy 14.2%, PvE 13.8%, Co-op 8.8%

  32. #32 Base Defense VR
    78% matchMixed62% of 26 reviews2021
    Dev: Tactical Republic Games
    Windows

    A classic tower defense game made for VR!

    Why similar: Tower Defense 29%, Base Building 19.8%, FPS 15.5%, PvE 9.5%, Strategy 8.1%

  33. #33 Robo Siege TD
    77% matchNo user reviews
    Dev: Cléo Saulnier
    Windows

    A classic sci-fi tower defense game filled with waves of robots in full 3D. Get rewarded with automatic mini upgrades for well placed towers. As you make progress, unlock even more upgrades for your towers by building factories. Can you unlock the legendary golden tower?

    Why similar: Tower Defense 37.9%, Robots 16.9%, Strategy 12.6%, Building 9.8%, Futuristic 9.3%

  34. #34 Cascadence
    75% match3 user reviews100% of 3 reviews2025
    Dev: proxaCor
    Windows

    Survive in a foreign world using your creativity to assemble your defenses.

    Why similar: Tower Defense 23.7%, Base Building 17.6%, FPS 14.9%, Building 9.2%, Realistic 6.7%

  35. #35 Beyond Hope
    76% match8 user reviews63% of 8 reviews2023
    Dev: Wildlak
    Windows

    Beyond Hope gives you and your friends one epic space journey! Your mission alone or with friends is to save yourself from getting pulled into the hot Sun. Gather debris, scavenge asteroids and build your own space station. Reach for the stars and survive when all odds are against you!

    Why similar: Co-op 20.9%, FPS 18%, Base Building 17.1%, Online Co-Op 10.9%, Sci-fi 10.6%

  36. #36 Out of Ammo
    75% matchVery Positive84% of 740 reviews2016
    Dev: RocketWerkz
    Windows
    Median: 1.5 hrsMean: 3.0 hrs≥1hr: 66%

    Out of Ammo is an intense VR Tower Defense / FPS hybrid strategy game that will have you constructing defenses, calling in artillery, issuing orders, and taking direct control of your soldiers in order to survive a relentless enemy onslaught.

    Why similar: Tower Defense 20.8%, Base Building 13.8%, FPS 12.7%, Online Co-Op 11.7%, Co-op 11.5%

  37. #37 Orcs Must Die! 2
    74% matchVery Positive92% of 19,505 reviews2012
    Dev: Robot Entertainment
    Windows
    Median: 5.5 hrsMean: 11.9 hrs≥1hr: 91%

    You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.

    Why similar: Tower Defense 48.8%, Co-op 19.9%, Online Co-Op 12.5%, Strategy 7.1%, Shooter 5%

  38. #38 WANTED: Yokai Uprising
    73% matchMixed63% of 27 reviews2024
    Dev: Happy Mochi StudioPub: ESAT
    Windows

    Wanted: Yokai Uprising is a cooperative first-person shooter. Take down waves of yokai solo or with a partner. Choose between two mercenaries with unique play styles to complete the mission assigned to you and defeat the city's most wanted boss.

    Why similar: FPS 25.6%, Online Co-Op 22.8%, PvE 12.9%, Shooter 10.9%, Co-op 7.5%

  39. #39 Orcs Must Die! 3
    72% matchVery Positive86% of 14,664 reviews2021
    Dev: Robot Entertainment
    Windows
    Median: 6.5 hrsMean: 14.6 hrs≥1hr: 89%

    Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.

    Why similar: Tower Defense 41.6%, Co-op 21.1%, Online Co-Op 10.4%, PvE 9.7%, Strategy 7.3%

  40. #40 VIPERTRACE
    73% matchMixed67% of 46 reviews2023
    Dev: Coinflip Studios
    Windows

    Fight for survival! Industrial waste has disturbed the dangerous Kaeru-tori's habitat, forcing them into the city. Unlock new areas, purchase weapons and upgrades to grow stronger, and fight off the horde with your friends!

    Why similar: FPS 20.8%, PvE 13.4%, Shooter 10.3%, Co-op 9.7%, Online Co-Op 9.5%

  41. #41 The first titans
    73% match3 user reviews100% of 3 reviews2020
    Dev: Anden studios
    Windows

    The first titans is an indie VR game where the shooters, tower defense and strategy games meet together. You will land in a hostile planet where you have to protect your crystal reactor. Recollect resources, build towers and kill the aliens trying to destroy you.

    Why similar: Tower Defense 29.2%, FPS 16.7%, Strategy 12%, Base Building 11.7%, Robots 8.7%

  42. #42 Yavalanche
    71% matchNo user reviews
    Dev: Decent Salad Games
    Windows

    Yavalanche is a tower defense game in which you take control of a courageous yeti that lives on top of the mountain to repel waves of the sinister goblins coming to get you. Place your pins, strategize your attacks, upgrade your fortifications, and send those pesky green goblins down!

    Why similar: Tower Defense 49%, Base Building 19.5%, Strategy 12.5%, Building 10.5%, PvE 8%

  43. #43 Tower Age
    71% matchNo user reviews
    Dev: PidzamStudios
    Windows

    Tower age is a singleplayer and PvP multiplayer tower defense game with resource management mechanics. Defend your base from enemies while keeping balance between resource gathering and defense capabilities. Play one of the 4 game modes alone or fight up to 15 other players.

    Why similar: Tower Defense 35%, Base Building 19%, Building 10.9%, Futuristic 8.9%, Strategy 8.2%

  44. #44 Salvation Denied
    71% matchNo user reviews
    Dev: FirevoltPub: Digital Vortex Entertainment
    Windows

    Salvation Denied is a chaotic co-op building sim for 1-4 players. Team up and use heavy machinery and ridiculous tools to build wild constructions. Physics rules everything. Every block has weight, every mistake shifts the balance, and disasters will push your creation to its absolute limit.

    Why similar: Co-op 18.8%, Base Building 16.2%, Online Co-Op 14.5%, Building 13%, Tower Defense 10.8%

  45. #45 Bugs From Space
    70% matchNo user reviews
    Dev: Earthlover Games
    Windows

    A fast-paced VR arcade shooter, where you fire guns, shoot energy bows, and toss explosive spears to defend your base from an alien infestation. The bugs shoot back, so don't forget to duck!

    Why similar: Co-op 17.7%, FPS 14.2%, Sci-fi 11.2%, Online Co-Op 10%, Futuristic 9%

  46. #46 Throbax TD
    70% matchMostly Positive74% of 50 reviews2022
    Dev: Unterrainer Informatik OG
    Windows
    Median: 3.3 hrsMean: 5.3 hrs≥1hr: 86%

    Throbax TD is the "Tower Defense" game you are looking for: Help Ughlar fight his way through 50 levels, buy over 100 upgrades and get all of the 50+ achievements.

    Why similar: Tower Defense 27.6%, Base Building 16.9%, Co-op 11.7%, Online Co-Op 11.4%, PvE 10.7%

  47. #47 Galactic Siege
    69% match1 user reviews100% of 1 reviews2025
    Dev: 2MGames
    Windows

    Defend your base across four unique worlds in this 3D tower defense game. Battle waves of monsters, conquer 20 campaign levels, and climb the global leaderboard in the endless mode.

    Why similar: Tower Defense 39.6%, PvE 15.1%, Strategy 13.1%, Sci-fi 8.7%, Base Building 8.5%

  48. #48 Skyland Defense
    72% match4 user reviews50% of 4 reviews2019
    Dev: SDC Ventures
    Windows

    Defend your skyland! Grab a tower and fight off the pirates. Build traps to slow down their march. Construct utility buildings and expand your village. Play alone or join your friends in this in-depth strategy and tower defense game!

    Why similar: Tower Defense 26.3%, Strategy 16.4%, Base Building 14.8%, Online Co-Op 14%, Co-op 13.6%

  49. #49 The Dark Forest: Survival
    70% matchNo user reviews
    Dev: CompactStudioCS
    Windows

    Survive in The Dark Forest, a zombie-infested woodland. Upgrade your weapons, gather resources, and withstand brutal, blood-soaked waves in first-person combat — alone or in co-op with up to 4 players.

    Why similar: FPS 19.3%, Base Building 16.7%, Co-op 11.2%, Shooter 9.3%, Building 9.1%

  50. #50 Echofall
    69% matchNo user reviews
    Dev: Retrocausal Studios
    Windows

    A high-mobility sci-fi FPS built around full directional gravity control. Rotate gravity at will, transform walls into floors, ceilings into escape routes, and vertical arenas into tactical advantages. Combine precision gunplay with fluid movement to survive relentless, escalating enemy pressure.

    Why similar: FPS 24.1%, Shooter 15.5%, PvE 12.5%, Action 10.5%, Futuristic 10%

  51. #51 Line Hold
    68% matchNo user reviews
    Dev: TR8 Torus StudiosPub: TR8 Torus Studios
    Windows

    THIS GAME WILL VANISH SOON! CHECK OUT LAST LINE - We’ve rebuilt and improved the game in every way, and it now lives on as Last Line!

    Why similar: Tower Defense 24.9%, Base Building 18.7%, Online Co-Op 15.9%, Co-op 10.3%, Sci-fi 8.4%

  52. #52 Taur
    69% matchMostly Positive80% of 2,078 reviews2020
    Dev: Echo Entertainment
    Windows
    Median: 4.2 hrsMean: 6.8 hrs≥1hr: 76%

    Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

    Why similar: Tower Defense 42.6%, Base Building 18.9%, Strategy 10.7%, Sci-fi 8.7%, Robots 8%

  53. #53 They Can't Stop All Of Us
    68% matchMostly Positive74% of 1,639 reviews2019
    Dev: B Michael BPub: ChainWave Games
    Windows
    Median: 36 minMean: 2.1 hrs≥1hr: 33%

    D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.

    Why similar: Tower Defense 25.5%, Base Building 16.5%, Co-op 14.7%, Online Co-Op 13.4%, Building 8.4%

  54. #54 JusTD
    67% match8 user reviews63% of 8 reviews2025
    Dev: Fairytales Games
    Windows

    Tower Defense with resource- and base management! Waves of enemy robots with special abilities, shield and armor! Mining, refining and production for building and repairing! Environmental hazards and the best: the Orbital strike!

    Why similar: Tower Defense 32.1%, Base Building 16%, Robots 14.4%, Sci-fi 10.8%, Strategy 9.4%

  55. #55 Echo Zero
    67% matchNo user reviews
    Dev: Wildboy Studios
    Windows · Mac

    Descend into a dangerous, procedurally generated sci-fi underworld. Explore, gather resources, uncover powerful wargear and upgrades, rally your droids, build and defend your base, and battle a mysterious new species on the verge of breaching the surface, either alone or in co-op.

    Why similar: Tower Defense 26.3%, Base Building 20.6%, Online Co-Op 13.5%, Robots 12.3%, Sci-fi 11.1%

  56. #56 Last Resort
    68% matchMixed57% of 143 reviews2021
    Dev: Team SoupvisionPub: Breda University of Applied Sciences
    Windows

    Last Resort is a small co-op shooter in which you and up to 3 others defend humanity's first hotel on Mars against hostile aliens. Defend & power up generators, upgrade your weapons and gun down hordes of aliens to save the hotel!

    Why similar: FPS 22.4%, Co-op 20.9%, PvE 12.9%, Shooter 9%, Sci-fi 6.6%

  57. #57 Bloons TD 5
    67% matchVery Positive95% of 11,795 reviews2014
    Dev: Ninja Kiwi
    Windows · Mac
    Median: 11.3 hrsMean: 38.6 hrs≥1hr: 86%

    Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.

    Why similar: Tower Defense 54.8%, Co-op 17.8%, Strategy 11.4%, Online Co-Op 9.3%, Action 3.5%

  58. #58 Quartermaster
    66% match6 user reviews86% of 7 reviews2025
    Dev: Nathan ShturmPub: Quartermaster Games
    Windows

    An online PvE co-op action game for up to 4 players. Work together with your team to manage your inventory, complete objectives, and destroy endless waves of ferocious robots.

    Why similar: FPS 18.8%, Strategy 13.5%, Shooter 11.1%, Futuristic 9.6%, Robots 9%

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Games Like Circuit Defender

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