Free Tower Defense Games on Steam
Steam currently has 2,569 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 3/21/2025.
Looking for more? Explore other lists such as:
- Best tower defense games on Steam
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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 2,456,977 reviews on Steam. This breaks down to a total of 2,003,864 positive reviews and 453,113 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 69, placing it in the #2 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 1,358 reviews on Steam. This breaks down to a total of 973 positive reviews and 385 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. 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 78, placing it in the #3 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 567 reviews on Steam. This breaks down to a total of 469 positive reviews and 98 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 |
4. 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 #4 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 3,601 reviews on Steam. This breaks down to a total of 2,701 positive reviews and 900 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 |
5. 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 #5 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 3,543 reviews on Steam. This breaks down to a total of 3,129 positive reviews and 414 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 |
6. 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 83, placing it in the #6 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 31,845 reviews on Steam. This breaks down to a total of 26,757 positive reviews and 5,088 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 |
7. Minion Masters
An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!
Minion Masters has achieved a Player Score of 88, placing it in the #7 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 64,788 reviews on Steam. This breaks down to a total of 58,025 positive reviews and 6,763 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 not possible to play or run Minion Masters on the Steam Deck.
8. 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 #8 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 21,740 reviews on Steam. This breaks down to a total of 16,832 positive reviews and 4,908 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 |
9. 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 #9 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 6,110 reviews on Steam. This breaks down to a total of 5,581 positive reviews and 529 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 |
10. 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 has achieved a Player Score of 89, placing it in the #10 spot for the best free Tower Defense games. Its score was calculated by analyzing a total of 29,058 reviews on Steam. This breaks down to a total of 26,362 positive reviews and 2,696 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 on the Steam Deck (though some functionality may be limited).
| Release Date | 4/20/2016 |
| Franchise | Ninja Kiwi Games |
| Developer | Ninja Kiwi |
| Publisher | Ninja Kiwi |
| Steam App Id | 444640 |
More Free Tower Defense Games
Explore even more rankings for the 100 best free Tower Defense games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 364,539 | 7/9/2013 | 81 | Free | Steam Charts | |
| 1,628 | 1/2/2025 | 69 | Free | Steam Charts | |
| 684 | 5/3/2024 | 78 | Free | Steam Charts | |
| 591 | 9/1/2022 | 73 | Free | Steam Charts | |
| 529 | 2/26/2021 | 85 | Free | Steam Charts | |
| 422 | 11/30/2021 | 83 | Free | Steam Charts | |
| 245 | 5/24/2019 | 88 | Free | Steam Charts | |
| 203 | 6/20/2017 | 76 | Free | Steam Charts | |
| 198 | 4/10/2020 | 88 | Free | Steam Charts | |
| 197 | 4/20/2016 | 89 | Free | Steam Charts | |
 | 194 | 5/6/2021 | 88 | Free | Steam Charts | |
 | 170 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 168 | 12/19/2017 | 62 | Free | Steam Charts | |
 | 149 | 7/23/2015 | 85 | Free | Steam Charts | |
 | 120 | 7/8/2020 | 91 | Free | Steam Charts | |
 | 103 | 2/17/2024 | 68 | Free | Steam Charts | |
 | 62 | 5/19/2021 | 72 | Free | Steam Charts | |
 | 60 | 9/22/2021 | 50 | Free | Steam Charts | |
 | 57 | 11/16/2022 | 74 | Free | Steam Charts | |
 | 55 | 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, March 21). Steam Store. Steam Store.
- Valve Corporation. (2025, March 21). Dota 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Incremental Epic Hero 2 on Steam. Steam Store.
- Valve Corporation. (2025, February 28). Idle Hero TD - Tower Defense on Steam. Steam Store.
- Valve Corporation. (2025, March 19). CounterSide on Steam. Steam Store.
- Valve Corporation. (2025, March 20). The Perfect Tower II on Steam. Steam Store.
- Valve Corporation. (2025, March 20). Bloons TD Battles 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 14). Minion Masters on Steam. Steam Store.
- Valve Corporation. (2025, March 19). Dungeon Defenders II on Steam. Steam Store.
- Valve Corporation. (2025, March 19). Bloons Monkey City on Steam. Steam Store.
- Valve Corporation. (2025, February 24). Bloons TD Battles on Steam. Steam Store.