Top similar games like Guard Protocol:

Deploy orbital defenses, fuse experimental turret technologies, and engineer devastating weapon builds in a tactical sci-fi horde survival roguelike. Break shields, shred armor, and adapt to evolving bio-corrupted swarms alongside a damaged tactical AI.

A tower defense game where you fight next to your base. Robots attack your Core from every side. Walk the field, shoot, grab Scrap and build turrets while the fight goes on. Every run ends with a Guardian, and the AI chips you recover carry over to the next one.

This is a fast-paced top-down shooting and tower defense game. You need to customize and upgrade your chariot, build defensive structures to protect your base, explore the world and destroy all enemies! Don't forget to come back and defend when the enemy attacks! Can you make it to the end?

Hold your crashed colony against thousands of enemies that evolve from every wave. Build walls and turrets, command your colonists, read the swarm on your sensors and grow a new build every run, with permanent upgrades between runs. Solo or 1–4 player online co-op on PC & Mac.

Rise of Mutant Swarms is a strategy survival tower-defense game where you defend the base against waves of evolving mutant enemies. Place and upgrade turrets, adapt to enemy abilities, and make critical decisions as the pressure rises with every wave.

Build towers, unleash ultimates and command six heroes in sci-fi tower defense. Play all 100 Scenario stages free. Try one-minute highlights of Basic and GRID COMMAND before purchase, then take your aerial fleet into GRID COMMAND's survival battles.

Expand your moving village while monsters try to tear it down in this strategic horde survival. Combine blessings, level-ups, orbs and buildings to create the ultimate survival machine!

Play as a lone rabbit sent to the outer space on the journey back home. Defend the ship against relentless alien waves, harvest precious resources, upgrade under pressure, and survive the crushing energy deficit. Every warp brings you one step closer to home… or to ruin.

Protect your crystal at all costs! Build your defense line, upgrade your abilities, and fight against endless waves of enemies in this fast-paced survival game that blends fluid FPS action, tower defense strategy, and roguelike mechanics.

A roguelite base-defense game where your traps decide where enemies walk — and where they fall. Block a chokepoint so the whole wave comes down one road, line it with traps, and draft a new one from three cards after every wave. They won't make it easy: they dig through walls and tear traps apart.

Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!

Aim, fire, and fortify. Shogun's Stand is a fast-paced tower defense where you take direct control of your castle against relentless waves of feudal enemies. Place traps, command the battlefield, and level up to survive!

Robowars is back on Steam! Fight off troops of droids for freedom and honor in our classical tower defense game. Lead the forces of the Solar Union to protect the peaceful planet of Praymos from the aggressive Trade Confederation.

Survive in a ruined Biosphere on a hostile alien world. Endure, then harness the extreme weather, battle powerful bosses for upgrades, and uncover the mystery behind the planet’s lost atmosphere.

Do you have what it takes to defend what is yours? This is not a typical tower defense game where the troops do all the work. This is a hybrid FPS/TPS tower defense game which you take over the control to defend your island.

Upgrade your engine’s arsenal in this bullet hell, tower defense roguelite featuring the most heavily armored locomotive in existence. Engineer and command the Ironfront Express in a unique take on lane defense where you upgrade with specialized turrets, drones, and tactical abilities.

Build traps. Fight bots. Survive the waves. Die Robot is a stylized third-person tower defense game where you defend a mysterious Data Seed from waves of robots, the Carbonites. Mix real-time base building with fast-paced combat in a strategic fight for survival.

A dark fantasy tower defense and survival game where you build defenses by day and possess your warriors by night to fight off endless waves of monsters.

Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.

You are a destructive piece of junk and your goal is to run over your enemies using all kind of weapons, abilities and upgrades

Star Surfer is an action roguelike where the goal is survival through upgrading powerful weapons and ship modifications.

Defend your base by placing towers strategically, forming interconnected systems that depend on one another. Adapt your strategy to different environments and enemy waves, exploiting their weaknesses. In System Status: SuperCritical, resources are scarce and critical failure is always an option.

Unleash strategic survival in Warf, where you guide Warf through relentless hordes, deploy towers, and engage in thrilling combat. Defend against the horde and emerge as the ultimate survivor in this innovative fusion of survival action and tower defense

A roguelite action game inspired by the legendary Enter the Gungeon and Nuclear Throne, set in a post-apocalyptic aquatic world. Shape your strategy by choosing which abilities shine by day and which awaken at night.

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.

Tower Tactics Arena is a fast-paced action roguelite set in the Tower Tactics: Liberation universe. Battle relentless enemy waves in a closed combat arena, level up your towers strategically, and gather powerful trinkets and potions! Will you claim victory in the arena?

Mikey Minerals owes the Shimigu Mining Corporation TRILLIONS in college debt. His sentence: the remote planet Dirt. Strap into a mech-themed roguelike mining tower defense survivor. Battle hordes, build a base, MINE and make money for the COMPANY.

10 minutes to extraction. Thousands of infected. Your gun fires forward—build walls, deploy turrets, hold the line through positioning. Every run is different. Every death is permanent. Will you make it out?

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!

A minimalist horde survival arena where you’re hunted by an endless swarm of drones - kite the horde, bait them into deadly traps, upgrade your defenses, use special items and survive as long as you can. Every minute the swarm grows denser, faster, and deadlier.

Drop Order is a dark sci-fi tactical tower defense where every turret placement shapes both your firepower and the enemy's route. Build synergistic defenses, create deadly mazes, and survive alien hordes with cards and hands-on drone combat.

Fight endless waves of enemies in a fast-paced roguelite space survivor. Build devastating ship combinations, unlock powerful upgrades and survive the void.

A top-down roguelite where you pilot a war titan through armies of thousands. Crush infantry underfoot, duel enemy titans, bolt salvaged guns and relics onto your machine and fight your way across the sector to the tyrant at the end.

Build and defend a mining operation on a distant planet in this tower defense bullet heaven shooter. Build and upgrade defenses, fight off waves of enemies from a rival corporation, and earn enough credits to buy your body back and escape this deep space hellhole.