Free Tower Defense Games on Steam
Steam currently has 2,465 Tower Defense games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Tower Defense game rankings were last updated on 1/9/2025.
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1. Dota 2
Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.
Dota 2 holds the #1 spot for "best free Tower Defense game on Steam" with a Player Score of 81. Its score was calculated by analyzing a total of 2,413,108 reviews on Steam. This breaks down to a total of 1,969,273 positive reviews and 443,835 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Dota 2 on the Steam Deck (though some functionality may be limited).
2. Incremental Epic Hero 2
A mixture of incremental/idle and roleplaying game set in fantasy world filled with monsters and things to explore, where battling is constant, almost everything can be upgraded, and with wide array of various prestige mechanics to always keep things interesting and moving forward!
Incremental Epic Hero 2 has achieved a Player Score of 70, placing it in the #2 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 1,307 reviews on Steam. This breaks down to a total of 952 positive reviews and 355 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Incremental Epic Hero 2 on the Steam Deck (though some functionality may be limited).
| Release Date | 1/2/2025 |
| Developer | Hapiwaku |
| Publisher | Idle System, Inc. |
| Steam App Id | 1690710 |
3. 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 has achieved a Player Score of 85, placing it in the #3 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 3,452 reviews on Steam. This breaks down to a total of 3,050 positive reviews and 402 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play The Perfect Tower II on the Steam Deck (though some functionality may be limited).
| Release Date | 2/26/2021 |
| Franchise | Fire Sword Studios |
| Developer | Fire Sword Studios |
| Publisher | Fire Sword Studios |
| Steam App Id | 1197260 |
4. 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 has achieved a Player Score of 77, placing it in the #4 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 466 reviews on Steam. This breaks down to a total of 384 positive reviews and 82 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Idle Hero TD - Tower Defense on the Steam Deck (though some functionality may be limited).
| Release Date | 5/3/2024 |
| Developer | Swell Games LLC |
| Publisher | Swell Games LLC |
| Steam App Id | 2897580 |
5. 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 has achieved a Player Score of 82, placing it in the #5 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 31,417 reviews on Steam. This breaks down to a total of 26,375 positive reviews and 5,042 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Bloons TD Battles 2 on the Steam Deck (though some functionality may be limited).
| Release Date | 11/30/2021 |
| Franchise | Ninja Kiwi Games |
| Developer | Ninja Kiwi |
| Publisher | Ninja Kiwi |
| Steam App Id | 1276390 |
6. CounterSide
Everything has another side Urban Graphic Novel RPG "CounterSide" A world where conflict never ends between Counters and Corrupted Objects after the Administration Failure We invite you to a journey to save the Reality.
CounterSide has achieved a Player Score of 73, placing it in the #6 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 3,538 reviews on Steam. This breaks down to a total of 2,648 positive reviews and 890 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play CounterSide on the Steam Deck (though some functionality may be limited).
| Release Date | 9/1/2022 |
| Developer | Studiobside Co.,Ltd |
| Publisher | Studiobside Co.,Ltd |
| Steam App Id | 1976440 |
7. 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 has achieved a Player Score of 76, placing it in the #7 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 21,633 reviews on Steam. This breaks down to a total of 16,769 positive reviews and 4,864 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Dungeon Defenders II on the Steam Deck.
| Release Date | 6/20/2017 |
| Franchise | Chromatic Games |
| Developer | Chromatic Games |
| Publisher | Chromatic Games |
| Steam App Id | 236110 |
8. 召唤之王 (Supreme Summoner)
‘Supreme Summoner’ is a turn-based strategy chess game. Taking the imaginative Romance of the Three Kingdoms as its theme, it innovatively blends elements of gods, demons, and mystical creatures, making each faction and character's attributes even more prominent.
召唤之王 (Supreme Summoner) has achieved a Player Score of 89, placing it in the #8 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 2,012 reviews on Steam. This breaks down to a total of 1,875 positive reviews and 137 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play 召唤之王 (Supreme Summoner) on the Steam Deck (though some functionality may be limited).
| Release Date | 7/25/2023 |
| Developer | CoolStar Games |
| Publisher | CoolStar Games |
| Steam App Id | 2491360 |
9. War Planet Online: Global Conquest
Build your army, dominate your region and lead your alliance to conquer the globe!
War Planet Online: Global Conquest has achieved a Player Score of 62, placing it in the #9 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 886 reviews on Steam. This breaks down to a total of 566 positive reviews and 320 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play War Planet Online: Global Conquest on the Steam Deck (though some functionality may be limited).
10. 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 has achieved a Player Score of 88, placing it in the #10 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 6,000 reviews on Steam. This breaks down to a total of 5,480 positive reviews and 520 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Bloons Monkey City on the Steam Deck (though some functionality may be limited).
| Release Date | 4/10/2020 |
| Franchise | Ninja Kiwi Games |
| Developer | Ninja Kiwi |
| Publisher | Ninja Kiwi |
| Steam App Id | 1252780 |
More Free Tower Defense Games
Explore even more rankings for the 100 best free Tower Defense games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 287,148 | 7/9/2013 | 81 | Free | Steam Charts | |
| 2,800 | 1/2/2025 | 70 | Free | Steam Charts | |
| 907 | 2/26/2021 | 85 | Free | Steam Charts | |
| 650 | 5/3/2024 | 77 | Free | Steam Charts | |
| 537 | 11/30/2021 | 82 | Free | Steam Charts | |
| 388 | 9/1/2022 | 73 | Free | Steam Charts | |
| 323 | 6/20/2017 | 76 | Free | Steam Charts | |
| 319 | 7/25/2023 | 89 | Free | Steam Charts | |
| 277 | 12/19/2017 | 62 | Free | Steam Charts | |
| 266 | 4/10/2020 | 88 | Free | Steam Charts | |
 | 247 | 5/24/2019 | 88 | Free | Steam Charts | |
 | 241 | 4/20/2016 | 89 | Free | Steam Charts | |
 | 239 | 5/6/2021 | 88 | Free | Steam Charts | |
 | 200 | 7/23/2015 | 85 | Free | Steam Charts | |
 | 170 | 7/8/2020 | 91 | Free | Steam Charts | |
 | 154 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 134 | 2/17/2024 | 69 | Free | Steam Charts | |
 | 70 | 1/16/2019 | 84 | Free | Steam Charts | |
 | 67 | 9/22/2021 | 51 | Free | Steam Charts | |
 | 64 | 6/21/2021 | 69 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, January 9). Steam Store. Steam Store.
- Valve Corporation. (2025, January 9). Dota 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 15). Incremental Epic Hero 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 13). The Perfect Tower II on Steam. Steam Store.
- Valve Corporation. (2025, January 14). Idle Hero TD - Tower Defense on Steam. Steam Store.
- Valve Corporation. (2025, January 14). Bloons TD Battles 2 on Steam. Steam Store.
- Valve Corporation. (2024, December 9). CounterSide on Steam. Steam Store.
- Valve Corporation. (2025, January 6). Dungeon Defenders II on Steam. Steam Store.
- Valve Corporation. (2025, January 14). 召唤之王 (Supreme Summoner) on Steam. Steam Store.
- Valve Corporation. (2024, December 16). War Planet Online: Global Conquest on Steam. Steam Store.
- Valve Corporation. (2025, January 8). Bloons Monkey City on Steam. Steam Store.