Best Tower Defense games on Steam

Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated tower defense games. For those who prefer not to search, lists of the most played, top deals and best free tower defense games are available at the bottom of the page.

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Get Off My Lawn!

They came in peace, but messed with the wrong old man. Armed with a musket, 78 year old Murray Mendelson has single-handedly started an interstellar war. Shoot first and ask questions later in this endless fast paced arcade shooter. Use everything in Murray’s arsenal to keep the aliens off of his perfectly manicured lawn!

Price Free to play
Rating 7.1
Release 11 Nov 2014

Royal Defense

The castle needs a hero – hordes of trolls are surrounding it! Build towers, save money, learn spells - don't let the enemy in! Follow the exciting story of the dwarven kingdom's eternal struggle against the troll hordes, who want only to crush the dwarves and claim their territory.

Price 9.75€
Rating 6.9
Release 10 Nov 2014

Merchants of Kaidan

Regain your riches, restore your honor and avenge your father's murder. A challenging trading game with lots of RPG elements.

Price -90% 1.49€
Rating 6.4
Release 10 Nov 2014

Guns n Zombies

This is the world after a zombie apocalypse in which the main characters have to go through many perils. It is a story about ordinary people who, when faced with danger, decided not to run away from it, but to fight back. As the story goes along, you will learn what caused the disaster and help other survivors to overcome its aftermath.

Price 7.79€
Rating 6.7
Release 30 Oct 2014

Dungeon of the ENDLESS™

Dungeon of the ENDLESS™ is a Rogue-Like Dungeon-Defense game, in which the player and their team of heroes must protect the generator of their crashed ship while exploring an ever-expanding dungeon, all while facing waves of monsters and special events as they try to find their way out...

Price 11.99€
Rating 8.4
Release 27 Oct 2014

Time Rifters

Be your own teammates in this unique single-player co-op shooter!

Price 9.99€
Rating 8.2
Release 21 Oct 2014

DG2: Defense Grid 2

Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges.

Price 12.49€
Rating 8.3
Release 23 Sep 2014

Cannon Brawl

Cannon Brawl is action RTS and artillery hybrid. Pilot an airship, command powerful weapon emplacements and use the destructible terrain to out think and destroy your enemy! It's a new take on artillery strategy!

Price 15.99€
Rating 8.6
Release 19 Sep 2014

Battle Islands

Battle friends over air, land and sea in this epic WW2-themed battle strategy game.

Price Free to play
Rating 7.4
Release 06 Aug 2014

OTTTD

Take command of HEROCORP™ and launch a Preemptive Defence Campaign™ against parallel dimensions in OTTTD, the most outrageous Tower Defence title around.

Price 6.59€
Rating 7.1
Release 06 Aug 2014

Terrorhedron Tower Defense

Terrorhedron is the 3D, cooperative tower defense game for the PC. Unmatched challenge and complexity is introduced to the genre through 3 dimensional gameplay, micro-strategy through programmable turrets and 'edge of seat' gameplay is extended to multiplayer with up to 8 players online co-op.

Price -50% 0.99€
Rating 8.0
Release 24 Jul 2014

Farm for your Life

Your community was taken down by a heavy storm which caused an apocalypse and unleashed the living dead. Together with the other survivors, it is your task to rebuild and to allow that sustainable life can still be assured. Cultivate your farm and manage your restaurant to provide food and deal with all the zombies.

Price -14% 8.56€
Rating 7.7
Release 16 Jun 2014

The Incredible Adventures of Van Helsing II

In the second part of the unfolding saga that could also be enjoyed independently, you can explore new corners of this unique world and experience the mix of old-school gothic and mad science, with more action, powerful foes and plenty of stunning places to visit.

Price 14.99€
Rating 6.7
Release 13 Jun 2014

Space Run

Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!

Price -85% 0.74€
Rating 8.2
Release 13 Jun 2014

Anomaly Defenders

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.

Price -88% 1.21€
Rating 7.4
Release 29 May 2014

The Culling Of The Cows

The Culling Of The Cows is a side-scrolling shooter / tower defence game. You will take the role of Sammy, a soliloquizing schizophrenic farmer with a self prophesied mission to lay waste to the disease spreading over his farm.

Price 4.99€
Rating 7.2
Release 09 May 2014

Battlepillars Gold Edition

Battlepillars is a real-time tug-of-war strategy game in which you command caterpillars armed to the teeth with flamethrowers, sticky honey, mines, machine guns, and more!

Price 4.99€
Rating 7.9
Release 28 Apr 2014

ReignMaker

ReignMaker: Saving the World One Tower at a Time. ReignMaker is a match-3 game with tower defense, city building, and political strategy elements. Your policy decisions determine the fate of your city and the direction of the story. Your match-3 and tower defense skills determine the fate of the world.

Price -93% 1.00€
Rating 6.1
Release 16 Apr 2014

Beware Planet Earth

Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!

Price 4.99€
Rating 6.8
Release 11 Apr 2014

Bardbarian

You play as Brad the barbarian, who is awoken to the sounds of his town under siege. Today is different though; Brad has grown tired of fighting all the time. The usual grind for XP has grown dull, and he has decided to pursue his dreams of making music instead of shedding blood.

Price -44% 4.51€
Rating 8.4
Release 01 Apr 2014

Yet Another Zombie Defense

Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.

Price Free to play
Rating 8.4
Release 28 Mar 2014

Creeper World 3: Arc Eternal

Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.

Price -23% 11.56€
Rating 9.3
Release 27 Mar 2014

Infested Planet

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.

Price -87% 1.62€
Rating 9.0
Release 06 Mar 2014

Deadly 30

Can you survive the horror? … a retro-style survival horror game developed by the two-man indie team of Gonzossm and Iggy Zuk. Survive 30 days and nights in a zombie-infested world by recruiting companions, upgrading weaponry and fortifying your position.

Price -86% 0.69€
Rating 7.4
Release 08 Jan 2014

Most played tower defense games on Steam

Take a look at the top tower defense games that are currently attracting the largest player bases on the Steam platform, as of April 16th 2025.

1. Bloons TD 6

The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Bloons TD 6 is a tower defense, strategy and multiplayer game developed and published by Ninja Kiwi. Released on December 17th 2018 has received 350,419 reviews of which 340,860 were positive and 9,559 were negative resulting in an impressive rating of 9.6 out of 10. The game has hit the top spot as the #1 most played tower defense game, thanks to its 9,816 peak concurrent players over the last day.
9.6
340,860
9,559

9,816
players

2. Plants vs. Zombies GOTY Edition

Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks. Plants vs. Zombies GOTY Edition is a tower defense, zombies and strategy game developed by PopCap Games and Inc. and published by PopCap Games, Inc. and Electronic Arts. Released on May 05th 2009 has received 138,275 reviews of which 134,944 were positive and 3,331 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 1,573 players online at once in the last 24 hours, this game is currently ranked #2 among tower defense games based on player count.
9.6
134,944
3,331

1,573
players

3. Nordhold

Enemies are coming! Every decision matters: build your city, grow the economy, and prepare for enemy waves. Strengthen your defenses, adapt your strategy, and unleash your hero’s full potential. This unique Tower Defense will test your skills – are you worthy to claim a place at Valhalla? Nordhold is a rogue-lite, tower defense and city builder game developed by StunForge and published by StunForge and HypeTrain Digital. Released on March 25th 2025 has received 1,515 reviews of which 1,376 were positive and 139 were negative resulting in a rating of 8.6 out of 10. While seeing 1,557 players online at once in the last 24 hours, this game is currently ranked #3 among tower defense games based on player count.
8.6
1,376
139

1,557
players

4. Kingdom Two Crowns

Gather coins, build defenses and reclaim your fallen Kingdom. Explore and uncover secrets, unlock new technologies and protect your crown versus waves of Greed monsters that come at night. Kingdom is a solo or co-op micro-strategy and tower defense game set in an atmospheric pixel world. Kingdom Two Crowns is a tower defense, minimalist and city builder game developed by Stumpy🐙Squid, Fury Studios and Coatsink and published by Raw Fury. Released on December 11th 2018 has received 7,063 reviews of which 6,244 were positive and 819 were negative resulting in a rating of 8.6 out of 10. With 1,102 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played tower defense games.
8.6
6,244
819

1,102
players

5. Idle Hero TD - Tower Defense

Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 589 reviews of which 486 were positive and 103 were negative resulting in a rating of 7.8 out of 10. With 896 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played tower defense games.
7.8
486
103

896
players

6. Legion TD 2 - Multiplayer Tower Defense

An infinitely replayable multiplayer and single-player tower defense. Defend against waves of enemies and destroy the enemy's king before they destroy yours. Legion TD 2 is a one-of-a-kind game of tactics, teamwork, and prediction. Party as 1-8 players. Legion TD 2 - Multiplayer Tower Defense is a tower defense, multiplayer and auto battler game developed and published by AutoAttack Games. Released on October 01st 2021 has received 13,384 reviews of which 11,565 were positive and 1,819 were negative resulting in a rating of 8.4 out of 10. With 694 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played tower defense games.
8.4
11,565
1,819

694
players

7. The Perfect Tower II

The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,581 reviews of which 3,154 were positive and 427 were negative resulting in a rating of 8.5 out of 10. With 633 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played tower defense games.
8.5
3,154
427

633
players

8. Bloons TD Battles 2

From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 31,971 reviews of which 26,878 were positive and 5,093 were negative resulting in a rating of 8.3 out of 10. With 512 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played tower defense games.
8.3
26,878
5,093

512
players

9. Mindustry

An open-ended factory management game with RTS and tower defense elements. Mindustry is a base-building, resource management and tower defense game developed and published by AnukenDev. Released on September 26th 2019 has received 21,477 reviews of which 20,586 were positive and 891 were negative resulting in an impressive rating of 9.4 out of 10. With 485 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played tower defense games.
9.4
20,586
891

485
players

10. Orcs Must Die! Deathtrap

Orcs Must Die! Deathtrap combines chaotic third-person combat with devious trap-laying strategy. Enjoy endless replayability as your War Mage grows stronger through roguelite progression. Repel relentless orc hordes solo or with up to 4 players. Orcs Must Die! Deathtrap is a tower defense, co-op and action game developed and published by Robot Entertainment. Released on January 28th 2025 has received 3,123 reviews of which 2,233 were positive and 890 were negative resulting in a rating of 7.0 out of 10. With 354 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played tower defense games.
7.0
2,233
890

354
players

Best deals on tower defense games on Steam

Discover fantastic savings with the best discounts on a variety of tower defense games available on Steam right now, updated on April 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted tower defense games.

1. Deathtrap

Deathtrap is a Tower Defense game with strong action-RPG elements, a game of vicious tricks, killing machines, rotating blades and splattering blood. Deathtrap is a tower defense, rpg and action game developed and published by NeocoreGames. Released on February 04th 2015 has received 2,185 reviews of which 1,833 were positive and 352 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 93% discount, this game currently holds the #1 spot in the best deals for tower defense category.
8.1
1,833
352

-93% 18.57€ 1.30€

2. Paper Planet

Paper Planet is a planet-defender, arcade roguelike with a doodley, Flash-inspired artstyle. Battle through waves of unique enemies and bosses. Combine items with strange and wacky effects for insanely overpowered runs. Play with 1-4 players, for some chaotic co-op fun! Paper Planet is a action roguelike, tower defense and bullet hell game developed by Doodlegames and published by 2 Left Thumbs. Released on August 21st 2023 has received 466 reviews of which 407 were positive and 59 were negative resulting in a rating of 8.2 out of 10. Thanks to its incredible 92% discount, this game is now the #2 best deal in tower defense games.
8.2
407
59

-92% 12.50€ 1.00€

3. GemCraft - Chasing Shadows

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. GemCraft - Chasing Shadows is a tower defense, strategy and indie game developed by Game in a Bottle and published by Armor Games Studios. Released on April 30th 2015 has received 4,115 reviews of which 3,923 were positive and 192 were negative resulting in an impressive rating of 9.2 out of 10. Thanks to its incredible 90% discount, this game is now the #3 best deal in tower defense games.
9.2
3,923
192

-90% 10.00€ 1.00€

4. Heretic's Fork

Dear candidate, we are pleased to invite you to take up the position of manager of Hell. You will punish sinners by using our deck-building computer system to construct hellish towers capable of keeping the endless hordes of the underworld in check. Best of luck! Heretic's Fork is a deckbuilding, tower defense and arcade game developed by 9FingerGames and published by Ravenage Games. Released on September 13th 2023 has received 3,500 reviews of which 2,998 were positive and 502 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 90% discount, this title has earned the #4 position in the best deals for tower defense games.
8.3
2,998
502

-90% 10.00€ 1.00€

5. Anomaly 2

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. Anomaly 2 is a strategy, action and indie game developed and published by 11 bit studios. Released on May 15th 2013 has received 1,017 reviews of which 804 were positive and 213 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 90% discount, this title has earned the #5 position in the best deals for tower defense games.
7.5
804
213

-90% 22.99€ 2.29€

6. HERO DEFENSE

CREEPS CRUMBLE. HEROES RISE. Command a team of renegade heroes and impale, slash, tear and burn through legions of undead hell-bent on world domination. Your mission: to defeat the world’s most powerful vampire, Count Necrosis. HERO DEFENSE is a tower defense, strategy and indie game developed by Happy Tuesday and published by Headup. Released on May 31st 2016 has received 747 reviews of which 470 were positive and 277 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 90% discount, this title has earned the #6 position in the best deals for tower defense games.
6.1
470
277

-90% 29.99€ 2.99€

7. Anomaly: Warzone Earth

Lead an armored squad through the perils of this reversed tower defense action-strategy game! Anomaly: Warzone Earth is a strategy, indie and tower defense game developed and published by 11 bit studios. Released on April 08th 2011 has received 4,622 reviews of which 4,025 were positive and 597 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 89% discount, this title has earned the #7 position in the best deals for tower defense games.
8.4
4,025
597

-89% 9.99€ 1.09€

8. Orcs Must Die!

Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment. Orcs Must Die! is a tower defense, action and strategy game developed and published by Robot Entertainment. Released on October 11th 2011 has received 8,131 reviews of which 7,801 were positive and 330 were negative resulting in an impressive rating of 9.3 out of 10. Currently offered at a significant 88% discount, this title has earned the #8 position in the best deals for tower defense games.
9.3
7,801
330

-88% 8.33€ 1.00€

9. Orcs Must Die! 2

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. Orcs Must Die! 2 is a tower defense, co-op and action game developed and published by Robot Entertainment. Released on July 30th 2012 has received 19,233 reviews of which 17,879 were positive and 1,354 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 88% discount, this title has earned the #9 position in the best deals for tower defense games.
9.1
17,879
1,354

-88% 12.33€ 1.48€

10. Lumencraft

Lumencraft is a unique combination of a top-down, rogue-like shooter and base building with tower defense elements. Dig and light up dark halls of a fully destructible environment on procedurally generated maps and campaign levels to find precious Lumen - humanity's only chance for survival. Lumencraft is a exploration, action and action rpg game developed by 2Dynamic Games and published by Star Drifters and Surefire.Games. Released on February 28th 2023 has received 1,164 reviews of which 909 were positive and 255 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 88% discount, this title has earned the #10 position in the best deals for tower defense games.
7.5
909
255

-88% 20.33€ 2.44€

Free tower defense games on Steam

Check out this fantastic list of free-to-play tower defense games you can enjoy on Steam right now, updated on April 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play tower defense games.

1. Idle Hero TD - Tower Defense

Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 589 reviews of which 486 were positive and 103 were negative resulting in a rating of 7.8 out of 10. With 896 active players enjoying it for free, this strategy game has reached the #1 spot among the top free tower defense games on Steam.
7.8
486
103

896
players

2. The Perfect Tower II

The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,581 reviews of which 3,154 were positive and 427 were negative resulting in a rating of 8.5 out of 10. Thanks to its free to play tag and a daily player base of 633, this tower defense game has secured the #2 spot in the ranking of free tower defense games on Steam.
8.5
3,154
427

633
players

3. Bloons TD Battles 2

From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 31,971 reviews of which 26,878 were positive and 5,093 were negative resulting in a rating of 8.3 out of 10. Thanks to its free to play tag and a daily player base of 512, this tower defense game has secured the #3 spot in the ranking of free tower defense games on Steam.
8.3
26,878
5,093

512
players

4. Dungeon Defenders II

Dungeon Defenders II is a cooperative Action Tower Defense game packed with roleplaying elements like loot, leveling, and pets. Dungeon Defenders II is a multiplayer, online co-op and co-op campaign game developed and published by Chromatic Games. Released on June 20th 2017 has received 21,770 reviews of which 16,849 were positive and 4,921 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 314 players due to its free access, this strategy game has achieved the #4 position in the best free tower defense games on Steam.
7.6
16,849
4,921

314
players

5. Bloons Monkey City

Create, upgrade, and customize your very own Bloons Monkey City in this groundbreaking blend of city building and tower defense awesomeness! Bloons Monkey City is a free to play, strategy and action game developed and published by Ninja Kiwi. Released on April 10th 2020 has received 6,147 reviews of which 5,613 were positive and 534 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 246 players due to its free access, this strategy game has achieved the #5 position in the best free tower defense games on Steam.
8.8
5,613
534

246
players

6. Bloons TD Battles

Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses. Bloons TD Battles is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on April 20th 2016 has received 29,074 reviews of which 26,383 were positive and 2,691 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 203 players due to its free access, this strategy game has achieved the #6 position in the best free tower defense games on Steam.
8.9
26,383
2,691

203
players

7. Ninja Kiwi Archive

Enjoy some of the best loved Flash games of the past in this awesome time capsule of over 60 Ninja Kiwi classics. Experience a piece of history and play the original Flash games that spawned the worldwide phenomenon of Bloons TD. Ninja Kiwi Archive is a casual, arcade and strategy game developed and published by Ninja Kiwi. Released on July 08th 2020 has received 5,387 reviews of which 5,056 were positive and 331 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 171 players due to its free access, this strategy game has achieved the #7 position in the best free tower defense games on Steam.
9.1
5,056
331

171
players

8. Infinitode 2 - Infinite Tower Defense

Infinitode 2 - a strategy in the Tower Defense genre, in which the player will have to build towers to protect his base from endless waves of enemies. The game features huge maps, lots of towers, resource miners, upgrade tree and map editor. Infinitode 2 - Infinite Tower Defense is a level editor, tower defense and building game developed and published by Prineside. Released on May 06th 2021 has received 3,592 reviews of which 3,277 were positive and 315 were negative resulting in a rating of 8.8 out of 10. Attracting a solid base of 140 players due to its free access, this strategy game has achieved the #8 position in the best free tower defense games on Steam.
8.8
3,277
315

140
players

9. Bloons Adventure Time TD

Defend Ooo from the Bloon invasion in this epic tower defense crossover. Bloons Adventure Time TD is a strategy, action and tower defense game developed and published by Ninja Kiwi. Released on January 16th 2019 has received 4,242 reviews of which 3,693 were positive and 549 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #9 spot among the most played free tower defense games on Steam.
8.4
3,693
549

88
players

10. Idle Monster TD

An endless Tower Defense game of epic Monsters vs evil War Machines. Unlock and upgrade tons of unique elemental Monsters (Water, Air, Earth, and Fire) to defend your home from an infinite swarm of robots. Strategize the most effective placement of Monsters to synergize their elemental abilities. Idle Monster TD is a strategy, tower defense and idler game developed and published by Swell Games LLC. Released on June 20th 2021 has received 808 reviews of which 583 were positive and 225 were negative resulting in a rating of 6.9 out of 10. The game currently holds the #10 spot among the most played free tower defense games on Steam.
6.9
583
225

72
players