Games Like Fortified

Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!

Why similar: Action 62.1%, Tower Defense 20.7%, Co-op 7%, Third-Person Shooter 5%, Strategy 4.6%

Why You'll Like It: This game is the closest match to Fortified, featuring a similar blend of mech-based third-person shooting and tower defense mechanics.

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: Action 40.8%, Tower Defense 34.8%, Co-op 10.5%, Strategy 3.8%, Multiplayer 2.3%

Why You'll Like It: A definitive hybrid of first-person shooter and tower defense that requires players to build mazes while actively fighting off waves of enemies.

Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

Why similar: Action 48.9%, Tower Defense 25.9%, Co-op 8%, Aliens 6.9%, Strategy 4.5%

Why You'll Like It: This game uniquely blends top-down twin-stick shooting with tower defense, forcing players to actively participate in the destruction of enemy waves.

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Why similar: Action 55.2%, Tower Defense 26.7%, Aliens 7.3%, Strategy 5.6%, Sci-fi 3.7%

Why You'll Like It: A modern first-person shooter and tower defense hybrid that emphasizes strategic placement and fast-paced combat against alien threats.

Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!

Why similar: Tower Defense 62.1%, Multiplayer 15.5%, Online Co-Op 10.5%, Strategy 9.4%, Third Person 2.5%

Why You'll Like It: A classic action-RPG tower defense hybrid where players must actively defend their core using both character abilities and defensive structures.

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: Action 47%, Tower Defense 28.8%, Co-op 9.8%, Third-Person Shooter 4.6%, Strategy 3.4%

Why You'll Like It: This title excels at combining action-oriented combat with trap-based strategy, offering a polished co-op experience similar to Fortified.

2280 A.D. The last few survivors of a ruined Earth seek a new home: Mars, a planet whose inhabitants didn't take too kindly to outsiders. The Red Solstice is a tense, tactical, squad-based action game. Fight to survive with up to 8 players in co-op, or lead your own squad in single-player mode.

Why similar: Co-op 30.4%, Aliens 25.7%, Strategy 14.3%, Multiplayer 12.2%, Sci-fi 9.7%

Why You'll Like It: A tactical, sci-fi co-op game that emphasizes squad-based defense and survival against massive waves of enemies.

Dungeon Defenders: Awakened is co-op Tower Defense combined with epic Action RPG combat. You’re able to join forces with up to four players to take on a never-ending army of orcs, demons, and dragons! Are your defenses strong enough to save the world of Etheria?

Why similar: Tower Defense 45.9%, Co-op 23.7%, Multiplayer 11.6%, Strategy 8.7%, Online Co-Op 7.8%

Why You'll Like It: A modern reimagining of the original action-tower defense hybrid that maintains the core loop of building defenses and fighting alongside them.

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: Action 37.5%, Tower Defense 30.2%, Co-op 12.9%, Third-Person Shooter 9.4%, Strategy 4.3%

Why You'll Like It: The latest entry in the series refines the action-tower defense formula with larger-scale battles and improved physics-based traps.

Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.

Why similar: Action 60.1%, Tower Defense 23.3%, Strategy 7.7%, Aliens 4.6%, Sci-fi 2.3%

Why You'll Like It: A strategy game that focuses on defending against massive alien swarms, requiring both tactical building and active unit management.

It's a fight for the future of the planet between the Ravagers, a merciless swarm of alien invaders, and the Earth Defense Force (EDF) in this third-person shooter.Play as four different classes in over 80 missions with a range of 800 weapons at your disposal.Co-op play supported.

Why similar: Action 67.6%, Third-Person Shooter 9.7%, Co-op 8.9%, Aliens 6.6%, Online Co-Op 2.4%

Why You'll Like It: While lacking the tower defense elements, it perfectly captures the 'defend Earth from massive alien swarms' theme with intense third-person action.

Stand and fight for humanity. This arcade shooter takes place in the year 2022, as the Earth Defense Force fends off an all-out attack by unknown life forms. Become an EDF soldier, battle against endless hordes of immense enemies, and restore peace to the earth.

Why similar: Action 74.8%, Third-Person Shooter 6.5%, Co-op 6.4%, Aliens 5.2%, Online Co-Op 2.3%

Why You'll Like It: An essential experience for fans of fighting overwhelming alien swarms with an arsenal of experimental weaponry.

Command your TOY SOLDIERS in epic, action-packed battles.

Why similar: Action 67.9%, Tower Defense 25.4%, Strategy 6.7%

Why You'll Like It: This game captures a similar 'pulp' aesthetic while allowing players to take direct control of their defensive units to engage the enemy.

Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.

Why similar: Action 57.8%, Tower Defense 25.2%, Aliens 8.1%, Strategy 5.3%, Sci-fi 3.6%

Why You'll Like It: A sci-fi tower defense game that emphasizes tactical placement and survival against increasingly difficult waves of enemies.

Iron Grip: Warlord invigorates tower defense with first-person shooter elements to give a new twist to the genre.It puts you in the heat of the battle, fighting off hordes of AI-controlled invaders. Play alone or with friends, in a diverse and challenging struggle to save all of Atelia.

Why similar: Action 75.5%, Tower Defense 17.7%, Co-op 4.3%, Indie 2.5%

Why You'll Like It: An early hybrid title that combines first-person shooter mechanics with the ability to build defensive structures during combat.

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: Action 63.6%, Co-op 11.6%, Aliens 10.1%, Multiplayer 5.1%, Online Co-Op 3.7%

Why You'll Like It: A co-op shooter that captures the feeling of defending a base against massive swarms of insects in a sci-fi setting.

Lead an armored squad through the perils of this reversed tower defense action-strategy game!

Why similar: Action 59%, Tower Defense 23%, Strategy 9.8%, Aliens 2.8%, Indie 2.7%

Why You'll Like It: A reverse tower defense game where you lead a squad through enemy defenses, requiring strategic pathing and active combat support.

Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.

Why similar: Tower Defense 45%, Strategy 25.3%, Co-op 16%, Sci-fi 5.1%, Multiplayer 3.8%

Why You'll Like It: A sci-fi strategy game that blends traditional tower defense with real-time strategy elements to hold off invading forces.

Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!

Why similar: Action 52.4%, Tower Defense 21.5%, Co-op 10%, Multiplayer 5%, Strategy 4%

Why You'll Like It: An open-world action game that incorporates significant tower defense elements as players protect their outposts from alien creatures.

NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.

Why similar: Action 71.9%, Co-op 11.2%, Aliens 7.6%, Online Co-Op 3.4%, Multiplayer 2.7%

Why You'll Like It: A co-op shooter focused on defending locations and surviving alien invasions, mirroring the defensive objectives found in Fortified.

Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.

Why similar: Action 56.8%, Tower Defense 27%, Aliens 7.7%, Strategy 5.4%, Sci-fi 3.2%

Why You'll Like It: A real-time tower defense game that focuses on large-scale defensive tactics against massive alien fleets.

Epic sci-fi tower defense action with 16-bit era look and feel, pitching your colonists against an almost endless horde of hostile alien robots who strongly oppose your attempts of colonizing their planet! Deluxe version includes the soundtrack!

Why similar: Action 74.5%, Tower Defense 16.6%, Strategy 6.1%, Indie 2.8%

Why You'll Like It: A strategy-focused tower defense game that features action elements and a classic sci-fi aesthetic.

Escape a chaotic alien planet by fighting through hordes of frenzied monsters – with your friends, or on your own. Combine loot in surprising ways and master each character until you become the havoc you feared upon your first crash landing.

Why similar: Action 60.4%, Third-Person Shooter 14.8%, Co-op 12.8%, Multiplayer 6.4%, Online Co-Op 2.2%

Why You'll Like It: A sci-fi action game that focuses on surviving increasingly difficult waves of enemies, requiring constant movement and strategic ability usage.

Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.

Why similar: Co-op 29.1%, Third-Person Shooter 28.1%, Aliens 25.2%, Sci-fi 8.3%, Shooter 5.7%

Why You'll Like It: A top-down co-op shooter that focuses on squad-based defense and survival against relentless alien hordes.

Serious Sam 4 reignites the classic FPS series in a high-powered prequel loaded with an explosive arsenal, intergalactic carnage, and perfectly timed one-liners.

Why similar: Action 77.8%, Co-op 11.9%, Multiplayer 4.7%, Third-Person Shooter 2.4%, Shooter 2.3%

Why You'll Like It: While purely an action shooter, it is the gold standard for fighting massive swarms of enemies in a sci-fi setting.

Artificial Defense is a one man made, real time strategy game combining orbital shooter and tower defense components within an electrifying, virtual reality setting. You are the machine, a mighty computer-system defending its servers against swarms of intruding creeps.

Why similar: Action 78%, Tower Defense 11.6%, Strategy 7%, Indie 3.5%

Why You'll Like It: An indie title that combines strategy and action, focusing on building defenses to survive waves of robotic enemies.

Galactic Missile Defense is a shooter and tower defense game, where you must protect Earth from the invading Martians that declared war on our planet just because a space rover accidentally ruined their picnic!

Why similar: Action 55.2%, Tower Defense 23.9%, Aliens 12%, Strategy 4.6%, Shooter 2.4%

Why You'll Like It: A shooter-focused tower defense game where you must actively intercept incoming alien threats.

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!

Why similar: Tower Defense 50.5%, Action 36.1%, Shooter 5.1%, Sci-fi 4.6%, Strategy 2.8%

Why You'll Like It: A top-down shooter that integrates tower defense elements, tasking players with defending their base from waves of robots.

Explore, loot, and rush back to defend your ship against alien hordes. Solo or 4-player coop, grow stronger run after run in this frantic action roguelite with a touch of tower defense.

Why similar: Action 59.5%, Tower Defense 21.8%, Co-op 11.2%, Multiplayer 4.4%, Online Co-Op 3.1%

Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!

Why similar: Action 45.8%, Tower Defense 29.3%, Aliens 8.1%, Strategy 5.5%, Multiplayer 4.2%

Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.

Why similar: Action 74.1%, Co-op 9%, Multiplayer 7.5%, Shooter 3.1%, Strategy 3%

Help the Bug Heroes defend their food stash from hordes of enemies! Control powerful heroes, build your defenses, level up your heroes and towers, equip upgrades, and more!

Why similar: Action 70.7%, Tower Defense 16.1%, Third-Person Shooter 6.9%, Strategy 5.2%, Third Person 0.6%

Towers of Altrac is a 3D Tower Defense cooperation game for up to 4 players with an innovative A.I. system “S.A.D.”, which makes your enemies intelligent . Fight against the horde of Goblins, Orcs, Dragons and other monsters on 62 unique maps. The game is for every level of player experience.

Why similar: Action 58.2%, Tower Defense 24%, Strategy 5.4%, Co-op 5%, Multiplayer 4.5%

Why You'll Like It: A strategy-heavy tower defense game that offers a large scale of combat and defensive planning.

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: Action 56.6%, Tower Defense 15.3%, Co-op 9.9%, Aliens 5.2%, Strategy 4.5%

Fortify is a real-time strategy game with a tower defense twist. Defend your castle from attacking monsters and siege weapons by using ranged and melee defenders, catapults, cannons, oil fields and more. You start at the iron age, advancing to the medieval age, and later, the imperial age.

Why similar: Action 88.5%, Strategy 7.9%, Indie 3.7%

You are Earth's last line of defense in a relentless alien invasion. Experience intense top-down roguelite action across diverse landscapes, fighting invaders with a versatile arsenal. Outsmart, outgun, and survive your foes. Every run increases the challenge - so adapt, evolve, dominate!

Why similar: Action 80.5%, Aliens 12%, Sci-fi 4.5%, Indie 3%

Build bases, lead an army of robots, and squash brains in this radical hybrid between RTS and third-person shooter. Join a duo of quirky heroes on a mission to save Earth, smash an evil alien corporation, and complete their comic book collection.

Why similar: Action 59.4%, Co-op 12.7%, Aliens 8.8%, Multiplayer 6.1%, Strategy 5.6%

"VOIDCRISIS" is a four-player tower offense game on an undulating battlefield. Operate combat bio-machines called VA (Vital Armor) drawn with dynamic mechanical art shaders and work together to clear high-difficulty stages.

Why similar: Action 48.7%, Tower Defense 19.3%, Third-Person Shooter 10.5%, Co-op 9.6%, Multiplayer 4.4%

Control the mysterious robot army to resist falling giant aliens.

Why similar: Action 97.4%, Indie 2.6%

Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀

Why similar: Co-op 30%, Action 20.3%, Strategy 13.4%, Multiplayer 11.6%, Online Co-Op 9.1%

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, and defend your stronghold against relentless attacks. In this action-packed block-builder, survival is earned, and only the strongest will remain.

Why similar: Action 66.7%, Tower Defense 18.7%, Third-Person Shooter 10%, Shooter 1.7%, Strategy 1.2%

Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

Why similar: Action 47.5%, Tower Defense 34.6%, Aliens 8.5%, Strategy 4.8%, Sci-fi 2.9%

Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system. Protect them from giant bugs, malfunctioning droids and more...

Why similar: Strategy 30.6%, Aliens 23.9%, Tower Defense 15.8%, Sci-fi 15.6%, Indie 14.1%

Based on the inhospitable frontier world of Mars, against the backdrop of a bacterial outbreak, Deadstone offers a compelling blend of frantic combat and tower defense, backed by a highly nuanced character development system and strategic elements of resource management.

Why similar: Action 90.5%, Strategy 4.7%, Sci-fi 2.4%, Indie 2.4%

MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin!

Why similar: Action 55.9%, Tower Defense 28.7%, Strategy 6.5%, Aliens 4.3%, Indie 2.9%

Our world is in danger! Grab your gun and stop these uninvited guests!

Why similar: Action 72%, Tower Defense 10.9%, Co-op 8.2%, Multiplayer 3.1%, Indie 2.9%

Face the gates of Hell in a fusion of third-person action, RPG and Tower Defence. Repel the demons alone or in co-op by building defences. Upgrade powerful units to help you in battle, before jumping into the fight yourself, with an arsenal of skills and weapons to rip apart the oncoming swarm.

Why similar: Action 58.2%, Tower Defense 20.6%, Co-op 9.6%, Strategy 4.6%, Multiplayer 4.2%

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: Action 55.6%, Tower Defense 33.2%, Strategy 6.5%, Sci-fi 2.6%, Indie 2%

Defend the shores of Gallipoli against landing forces in this WWI FPS game, as the enemy attacks you with troops, armored cars, planes, battleships and more! Use the iconic WWI weapons, prepare your defenses with mines, explosives and bonuses!

Why similar: Action 53.8%, Tower Defense 21.5%, Co-op 9.7%, Third-Person Shooter 9.4%, Online Co-Op 3.3%

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.

Why similar: Action 51.7%, Tower Defense 25.4%, Co-op 12.2%, Strategy 4.9%, Sci-fi 3.6%

Thousands of giant insects and aliens once again ravage the earth, and only the Earth Defense Force can stop them.

Why similar: Action 76.3%, Third-Person Shooter 10.9%, Co-op 6.9%, Aliens 2.3%, Online Co-Op 1.7%

Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!

Why similar: Tower Defense 69.9%, Strategy 13.2%, Aliens 12.2%, Sci-fi 4.7%

Farm, Build, Defend, in the Galaxy's only Arcade-Tower-Defense.

Why similar: Action 47.2%, Tower Defense 21.8%, Third-Person Shooter 11.2%, Aliens 5%, Co-op 4.6%

A tower defense action roguelike where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and items to craft powerful builds that lead you to victory.

Why similar: Action 62.2%, Tower Defense 25%, Aliens 7.4%, Strategy 5.4%

Rush for Glory is featuring challenging and rewarding Tower Defense battles, in which players are defending their base against an alien invasion. By strategically building towers and upgrading them, the player can keep his base safely and further progress through the extensive singleplayer campaign.

Why similar: Action 64.4%, Tower Defense 28.9%, Strategy 6.7%

From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun!

Why similar: Action 69.7%, Co-op 13.2%, Multiplayer 5.6%, Online Co-Op 4%, Sci-fi 3.1%

Anomaly Defenders is the closing installment of the Anomaly series. The original incarnation of the Tower Offense sub-genre had players controlling humans fighting alien invaders. Now, the tables have turned. The human counterattack is underway and the alien homeworld is under threat.

Why similar: Action 63.2%, Tower Defense 27.1%, Strategy 6.5%, Indie 2.3%, Sci-fi 0.9%

Aliens Invaded Our Planet is a Multiplayer / CO-OP (Up to 6P) FPS & Arcade Style Action game, the game is about alien invasion in 1900s Richalley Town. Shoot and run for your life against the aliens!

Why similar: Action 96.4%, Indie 3.6%

Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!

Why similar: Action 44.5%, Tower Defense 42%, Strategy 5.7%, Aliens 3.8%, Sci-fi 2.1%