
Protect the asteroid mine's reactor from swarms of supersized alien protozoa. This game's groundbreaking AI system uses machine learning to adapt to your strategy in real-time as you build and upgrade your defenses. Fight evolution itself.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Tower Defense, Indie, Action.

Protect the asteroid mine's reactor from swarms of supersized alien protozoa. This game's groundbreaking AI system uses machine learning to adapt to your strategy in real-time as you build and upgrade your defenses. Fight evolution itself.

Anomaly Korea
Exclusively brought to Steam for PC, Mac and Linux in Anomaly Bundle, Anomaly Korea is an expansion campaign to Anomaly Warzone Earth. The alien robots are back and this time they’ve got Korea in their sights. It’s your job to lead a squad into fierce fire-fights and fend off the alien invasion.

Anomaly Warzone Earth Mobile Campaign
Anomaly Warzone Earth Mobile Campaign continues Steam's Anomaly Warzone Earth in an extra 15-level campaign. Originally released on mobile devices, the campaign is brought to Steam for PC, Mac and Linux exclusively in Anomaly Bundle. AWE Mobile Campaign turns tower defense on its head.
Exclusively brought to Steam for PC, Mac and Linux in Anomaly Bundle, Anomaly Korea is an expansion campaign to Anomaly Warzone Earth. The alien robots are back and this time they’ve got Korea in their sights. It’s your job to lead a squad into fierce fire-fights and fend off the alien invasion.
Why similar: Strategy 39.3%, Tower Defense 32.5%, Action 14.4%, Sci-fi 10%, Top-Down 2.3%
Anomaly Warzone Earth Mobile Campaign continues Steam's Anomaly Warzone Earth in an extra 15-level campaign. Originally released on mobile devices, the campaign is brought to Steam for PC, Mac and Linux exclusively in Anomaly Bundle. AWE Mobile Campaign turns tower defense on its head.
Why similar: Strategy 40.2%, Tower Defense 32.1%, Action 16.5%, Sci-fi 9.7%, Indie 1%
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Why similar: Tower Defense 38.9%, Strategy 35.6%, Sci-fi 11.4%, Action 8.1%, Top-Down 2.9%
M.A.C.E. Tower Defense is a classic tower defense game with unique towers and enemies and an ingame shop system for getting better towers, upgrade existing towers and buy special items.
Why similar: Tower Defense 39.9%, Strategy 32.6%, Action 14.6%, Sci-fi 9.3%, Indie 3.6%
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: Tower Defense 54.4%, Strategy 28.2%, Action 10.4%, Sci-fi 4.5%, Indie 2.4%
Anomaly 2 is a sequel to the critically acclaimed Anomaly Warzone Earth. Maintaining the core elements of the original, Anomaly 2 adds plenty of new features: unit morphing, over million tactical combinations, post-apo world and tower defense vs tower offense multiplayer mode.
Why similar: Tower Defense 41.6%, Strategy 34.5%, Action 11.2%, Sci-fi 9.2%, Indie 2.9%
Sci-fi tower defense where you create your own maze, manage drones and power levels, and harvest for resources. Upgrade your turrets, buildings and ground units. Upgrade and buy new vehicles and motherships.
Why similar: Tower Defense 47.6%, Strategy 24.5%, Sci-fi 18.3%, 3D 6.4%, Indie 2%
Terra Forma is a pixelated 2D tower defense, inspired by Flash-age classics. Build a dozen unique towers and create even more fusions by combining shock, ice, fire, and iron. Prove your command prowess one final time, and defend mankind's final hope.
Why similar: Tower Defense 42%, Strategy 24%, Action 8.9%, Sci-fi 8.6%, Top-Down 8%
Spoids is a challenging throwback to the original brand of tower defense games. Command the Remote Defense Space Station and respond to distress calls of those who are being attacked by the invaders. Travel from planet to planet using your powerful arsenal to hold back the Spoids.
Why similar: Tower Defense 41.5%, Strategy 34.1%, Action 12%, Sci-fi 8.4%, Indie 4%
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 35.3%, Strategy 27.3%, Futuristic 10%, Sci-fi 8.2%, Top-Down 8.1%
A Tower Defence game, that actually allows you to sit inside the turret and come face-to-face with the enemies! Addictive strategy - action game, with loads of shooting and explosions! Nearing 2 MILLION DOWNLOADS!
Why similar: Tower Defense 42.4%, Strategy 39.8%, Action 14.4%, Indie 3.5%
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: Tower Defense 59.5%, Strategy 29.7%, Action 10.8%
Tiestru offers a new perspective to strategy games. The player has control all over the map and defines his strategy with the structures that he builds. Each structure, each connection, each location offer new and enhanced powers. In this deep and complex game everything is up to you! Define your strategy!
Why similar: Tower Defense 46.2%, Strategy 33.2%, Action 16.7%, Indie 3.9%
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: Tower Defense 44.4%, Strategy 35.3%, Action 16.3%, Indie 4%
Harvest: Massive Encounter is an award-winning real-time strategy game with battles of epic proportions and a unique style of resource management and exploration. Build power plants, mineral harvesters and defense towers and make sure they have sufficient energy to fend off endless hordes of evil aliens.
Why similar: Tower Defense 56.5%, Strategy 30.6%, Sci-fi 9%, Indie 3.3%, Singleplayer 0.6%
The sequel to the hit strategy game, with new weapons, landscapes, and options.
Why similar: Tower Defense 41.7%, Strategy 38.2%, Action 16.2%, Indie 3.9%
Tiny Toyfare is a Tower Defense/FPS hybrid with a focus on strategic calm followed by twitch action. Construct powerful towers, recruit adorable squads and fight off the Dino invasion!
Why similar: Tower Defense 45.7%, Strategy 34.3%, Action 15.8%, Indie 4.2%
Slime Virus Defense is a 2D strategy game where animal towers defend your computer from invading virus-like slimes. Use unique tower classes and skills to develop strategies and stop the slime invasion before it's too late!
Why similar: Tower Defense 40.9%, Strategy 32%, Sci-fi 10.1%, Top-Down 8.5%, Tactical 6.8%
Want a tactical and strategic tower defense challenge that's packed with options and upgrades? Take command of the dropship Sentinel and do battle across a vibrant sci-fi world.
Why similar: Strategy 38.6%, Tower Defense 37.3%, Sci-fi 19.6%, Indie 4.6%
BYTES:T.R.T.D is a twist on the classic Tower Defense formula. Build your own path to the exit and use special tiles to keep your Bytes safe against a dynamic AI that tries to counter your actions.
Why similar: Tower Defense 40.7%, Strategy 31.4%, Futuristic 11.5%, Sci-fi 10.1%, 3D 5.2%
Fat Chicken is a REVERSE TOWER DEFENSE game where you fatten up farm animals for slaughter by pumping them full of hormones, overfeeding them and basting them with antibiotics to keep them alive so they're worth more when you turn 'em into tasty, tasty packaged meat...it's what's for dinner!
Why similar: Tower Defense 40.5%, Strategy 39.5%, Action 15.5%, Indie 4.5%
The ultimate mash-up of Real-time Strategy and Tower Defense!
Why similar: Tower Defense 59%, Strategy 20.4%, Sci-fi 9.4%, Action 5.3%, Top-Down 3.3%
Selknam Defense is more than an exceptional strategy game. It’s a gateway to the past that puts a nation’s destiny into your control. Do you have the skills to alter history and save the Selknam?
Why similar: Tower Defense 57.2%, Strategy 31.5%, Action 7.6%, Indie 3.6%
Get ready for modern battles! Defend your islands against evil invaders in jungles! Your team will consist of modern snipers, gunners, rockets, ice towers and other great things. A deep conflict has been brewing between you and the evil invaders. Fight to protect your freedom and liberty.
Why similar: Tower Defense 51.1%, Strategy 35.5%, Action 10.6%, Indie 2.8%
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 43.6%, Strategy 18.9%, Sci-fi 8.8%, Base Building 8.4%, Action 6%
In this uniqueTower Defense you will travel through William’s mind in a colored and dreamlike universe.
Why similar: Tower Defense 59.2%, Strategy 26.9%, Action 10.2%, Indie 3.7%
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: Tower Defense 38.5%, Strategy 27.3%, Sci-fi 9.7%, Top-Down 8.8%, Action 8.1%
The monsters are coming to invade our kingdom. Can you help our guild to stop them? Play it BEAUTIFULLY: the ultimate tower defense game has finally arrived. An epic guild of epic Heroes, dozens of angry monsters, amazing powers, golems, a lot of different and unique colorful levels is what is waiting for you in Ancient Tower.
Why similar: Tower Defense 40.4%, Strategy 33.2%, Action 22.6%, Indie 3.9%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 65.2%, Strategy 19.2%, Sci-fi 8.4%, Action 5.6%, Indie 1.6%
Abyss Raiders: Uncharted is an action tower defence game, set in a future where robots are the dominant species in the universe. You will need to survive waves of fierce enemies whilst searching for the ancient ruins that have the power to prevent the second apocalypse.
Why similar: Strategy 42.6%, Tower Defense 41.7%, Action 12.7%, Indie 3%
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 41.5%, Strategy 15.8%, Futuristic 10.4%, Top-Down 9.8%, Base Building 9.6%
Cybernetica is a tower defense game. The player’s task is to destroy the enemies with the help of buildings before they cross the base. Each tower has its own characteristics and cost. Each wave of enemies is procedurally generated.
Why similar: Strategy 37.6%, Tower Defense 31%, Action 11.8%, Base Building 8.9%, Top-Down 7.7%
Find the best combinations of projectiles and components to create the ultimate weapon. Mutate and upgrade your components to create stronger weapons. Fight wave after wave of monsters to reach the top.
Why similar: Tower Defense 40.3%, Strategy 30.3%, Sci-fi 14%, Futuristic 8.9%, Top-Down 6.1%
Solder diodes, capacitors and other electronic components to defend your motherboard from waves of evil viruses!
Why similar: Tower Defense 46.8%, Strategy 28.8%, Tactical 8.8%, Base Building 7.4%, 3D 5.1%
The final part of the Cybernetica trilogy. The action takes place in the center of a small town. Cybernetica is a tower defense game. The player's task is to destroy enemies with the help of buildings before they cross the base. With the help of 7 towers you need to cope with 85 waves of enemies.
Why similar: Strategy 43.7%, Tower Defense 36%, Base Building 10.3%, Top-Down 8.9%, Singleplayer 1%
A strategy game that combines MOBA and Tower Defence, You would control guardians with different skills,building your outpost to fend off enemy attacks.
Why similar: Tower Defense 36.3%, Strategy 26.7%, Base Building 10.5%, Action 10.4%, Top-Down 6%
A tower defense adventure with endless strategy. Experience procedurally generated maps, unique foes, and a comprehensive tower upgrades system, as you progress through the waves. See how long you can hold down the homebase in this dynamic and replayable game!
Why similar: Tower Defense 41.1%, Strategy 23.5%, Action 11.3%, Sci-fi 7.2%, Futuristic 7.1%
Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!
Why similar: Tower Defense 53.8%, Strategy 25.9%, Tactical 12.1%, 3D 8%, Base Building 0.1%
An epic, challenging tower defense game with an emphasis on strategy and replayability. Summon gems of immense magical potency and harness their unique abilities against a seemingly endless horde of monsters. The archdemon seeks to swallow the world, and you must journey to stand against her.
Why similar: Tower Defense 67.6%, Strategy 20.2%, Top-Down 3.7%, Action 3.5%, Tactical 2.8%
A mazing tower defense where tower placement is everything. Force enemies the long way around, build choke points, push through lava, and adapt as levels change beneath you. No spells, no card modifiers. Just planning, placement, and a cat stuck in a jar.
Why similar: Tower Defense 38.8%, Strategy 30%, Top-Down 8.9%, Futuristic 8.9%, Tactical 6.5%
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Why similar: Tower Defense 68.7%, Strategy 17%, Sci-fi 9.7%, Futuristic 2.6%, Indie 1.3%
Defend the clearance shelf. When the lights go out, the seasonal war begins. Lead your unsold Easter stock against waves of full-price enemies — before morning reveals the secret.
Why similar: Tower Defense 48.4%, Strategy 39.6%, Top-Down 10.8%, Singleplayer 1.1%
Dead TD is a tower defense game that was inspired by the old school original maps from WC3. It features a wide range of towers that upgrade into more powerful types and features a range of different abilities that can be used to create the ultimate defense.
Why similar: Tower Defense 55%, Strategy 33.6%, Top-Down 10.3%, Singleplayer 1.1%
You are an archer tasked with defending a castle from invading monsters. Inside the castle, you can manage resources and harvest crops, gather experience points to level up, and learn new skills and abilities to face stronger enemies.
Why similar: Tower Defense 60.7%, Strategy 25.7%, Action 11.6%, Singleplayer 1.1%, Indie 0.9%
Defeat hordes of imps in the very first Tower Defence game about the order of monks! All this to defend humankind from hordes of demons!
Why similar: Tower Defense 60.3%, Strategy 39.7%
Witch Sacrifice - you have to defend your lands from three cruel kings. A huge army is advancing on your swamps, which you have to stop.
Why similar: Tower Defense 40.2%, Strategy 33.2%, Action 14.8%, Top-Down 9.5%, Indie 1.4%
Build wild multi-class turrets, stack abilities, and outsmart waves of enemies in this fast-paced, cartoon-style sci-fi tower defense! Combine synergies, manipulate cooldowns, and unleash chaos with explosive effects and clever combos.
Why similar: Tower Defense 39.2%, Strategy 32.8%, Sci-fi 9%, Top-Down 7.1%, Tactical 5.9%
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: Strategy 43.2%, Tower Defense 33.2%, Action 18.3%, Indie 5.3%
Take direct control of your hero in this stylized 3D tower defense. Don’t just place your defenses—pick them up and rush them to the front lines as the tide of battle shifts. Strategize in real-time to protect your realm from ever-evolving threats.
Why similar: Strategy 31.7%, Tower Defense 24.7%, Action 15.1%, Base Building 7.7%, Tactical 6.6%
Asteria is under siege! Take up arms as the commander and find the perfect strategy in this hero filled tower defense game. Will you become a Defender of Asteria or fall short?
Why similar: Tower Defense 53%, Strategy 33.2%, Top-Down 11.2%, Indie 1.5%, Singleplayer 1%
Rampart Defense is a classic tower defense game where you strategically deploy troops and vehicles to protect your colony from waves of enemies.
Why similar: Tower Defense 48.4%, Strategy 29.7%, Sci-fi 10.6%, Top-Down 9.7%, Indie 1%
Fantasy Tower Defense is a challenging, fast-paced, and strategic Tower Defense game where you frantically build towers, cast spells, and upgrade to stop monsters from reaching your castle.
Why similar: Tower Defense 51%, Strategy 40.8%, 3D 7%, Singleplayer 1.2%
A Tower Defense game made in the best tradition with 35 unique towers, 70 upgrades and 8 biomes. A 20 level campaign and 2 challenge levels for now, with more to come! Made by an indie developper.
Why similar: Strategy 50.3%, Tower Defense 46.5%, Indie 2%, Singleplayer 1.2%
Mighty towers, powerful explosions, epic battles - all these and much more awaits you in this one of the best Tower Defense games. Evil tanks, warplanes, mortar men and machine-gunners are ready to attack the land of civilians. Take the challenge and commence the battle!
Why similar: Strategy 46.4%, Tower Defense 39.5%, Action 8.6%, Indie 5.5%
Be first to conquer Old Kingdom's deserted islands; build your base, search treasures and secrets in its ruins. Research and craft new weapons to help you fight creatures and mysteries of the old kingdom. Defend against viking invaders by building defense towers and recruit mercenary soldiers.
Why similar: Tower Defense 37.1%, Strategy 33.2%, Action 15.3%, Base Building 10.5%, Indie 3.9%
Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.
Why similar: Tower Defense 54.6%, Strategy 28.3%, Sci-fi 13.9%, Indie 3.2%
The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.
Why similar: Tower Defense 71.2%, Strategy 21.1%, Sci-fi 5.8%, Indie 1.9%
Build your cities and set up defensive structures to protect them from the constant threat of monsters. Brought to you by ACE Team, SolSeraph combines action and strategy for a rich gameplay experience reminiscent of the 16-bit era.
Why similar: Strategy 50.5%, Tower Defense 25.7%, Action 23.8%