Top similar games like Circuit Defender:

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.

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!

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.

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.

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!

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!

Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?

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

Stop the escape of the infected automata in this Local Co-op Tower Defense First Person Shooter game for VR. Choose between playing solo or collaborating with a friend to build defensive structures and fight the Automata to avoid their escape.

Kills don't win games. Scores do. SUPER SCORE is a 3v3 multiplayer shooter where the only objective is reaching the enemy base. Outrun, outplay, and outscore the opposition in high-speed combat.

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!

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.

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

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.

A tower defence you fight in first person. One road, one base, and thirty kinds of enemies walking down it. You meet them yourself with six guns and and build different kinds of defensive turrets.

(This description has been redacted)

Meet Your Maker is a building game of brutal expression and conquest. Unleash your inner evil genius in co-op or single-player to build the ultimate fortress of devious deathtraps, or take on those built by others in a high-stakes heist to steal resources essential for your survival.

Dive into non-stop action in a movement-based first person shooter, blending some of the most familiar gameplay elements of the genre into a completely new experience, build around the idea to have the most fun with your friends you could possibly have with a movement shooter.

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!

Pushing the boundaries of what fans have come to expect from the record-setting entertainment franchise, Call of Duty®: Black Ops II propels players into a near future Cold War

Join the Vikings in an epic tower defense adventure! Defend your ship against mythical bosses while mining resources and upgrading skills. Battle solo or team up with friends in online co-op for a journey of strategy, conquest, and victory.

In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.

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!

Fight against endless hordes of zombies in this action-packed, round-based survival game inspired by classic zombie shooters! Explore diverse maps, upgrade weapons, deploy automatic turrets, and call in airstrikes. Customize your arsenal with attachments and skins. Play online or in split-screen.

Cosminers is a 1-4 player co-op FPP sci-fi building and mining game with survival elements based on day/night cycle. As a space miner kill various aliens on procedurally-generated planet's undergrounds. Craft and upgrade your tools, weapons & base to get countless hours of thrilling gameplay.

Play as 1 of 3 factions in the fight for control of Domusalus, but beware the Kaecillian menace who threaten both locals and warring factions. Deploy with your gear, search for upgraded loot, and escape in time to keep it for your next assault for planetary dominance.

Eden Star is a fast paced Sci-Fi survival game that blends unique physics based combat, destructible environments and free-form construction with the exploration of a hostile alien world.

When the storm hits, you move. Stellarvoid: Cold Protocol is a tactical 1–4 player co-op heist shooter set in a West African colony on a hostile ice world. Use the cover of the blizzard to raid dormant Imperial facilities. Breach the defenses, complete your objective and make it home together.

Spectre Divide is the genre-evolving, free-to-play 3v3 tactical shooter driven by Duality. Use Duality to control two bodies in real-time, letting you defend two sites at once, cover your own cross, or even trade yourself. Master tactical gunplay and an arsenal of future tech to achieve infamy.