What to know
- Steam Tower Defense Fest runs March 9 to March 16, 2026.
- The event highlights games built around defensive strategy and wave survival mechanics.
- Many titles in the sale are discounted 60% to 90%, making them very affordable.
- Several well-known strategy games are currently available for under $10.
Steam’s Tower Defense Fest is currently live, putting the spotlight on games centered around building defenses, managing resources, and surviving waves of enemies. The themed event began on March 9 and will run until March 16, giving players roughly a week to explore discounts across the tower defense category.
The genre has evolved significantly over the years. Traditional lane-based tower defense games still exist, but modern titles now mix the formula with base building, roguelike mechanics, and real-time combat systems. The current Steam event reflects that variety, featuring both classic tower defense experiences and hybrid strategy games.
Below is a quick overview of seven notable titles currently discounted to under $10 during the event.
| Game | Original Price (USD – USA Steam Store) | Sale Price (USD – USA Steam Store) | Discount |
|---|---|---|---|
| Bloons TD 6 | $13.99 | $5.59 | 60% |
| Kingdom Rush | $9.99 | $4.99 | 50% |
| Dome Keeper | $17.99 | $7.19 | 60% |
| Thronefall | $12.99 | $8.44 | 35% |
| Dungeon Warfare | $9.99 | $2.49 | 75% |
| Defense Grid 2 | $9.99 | $3.79 | ~62% |
| The Riftbreaker | $29.99 | $9.89 | 67% |
While all of these games revolve around defending a base or territory, each one approaches the idea differently. Some stick closely to the traditional tower placement formula, while others introduce exploration, city building, or direct combat elements.
Bloons TD 6
Bloons TD 6 remains one of the most popular tower defense games on Steam and continues to receive updates years after release. The game focuses on placing monkey towers with different upgrade paths while defending against waves of balloons across dozens of maps. The title also includes cooperative play and seasonal content, which helps maintain long-term replay value. According to the Steam store listing, the game is currently discounted from $13.99 to $5.59 during the sale.
- Original price: $13.99
- Sale price: $5.59
- Discount: 60%
- Best for: Players who want a polished and highly replayable tower defense experience
Kingdom Rush
Kingdom Rush is one of the most recognizable games in the genre and helped popularize the modern tower defense formula. You place towers along enemy paths, upgrade them into specialized forms, and deploy hero units that can actively assist in combat. The game emphasizes tactical positioning and timing, especially in later levels where enemy combinations become more complex.
- Original price: $9.99
- Sale price: $4.99
- Discount: 50%
- Best for: Fans of classic tower defense design
Dome Keeper
Dome Keeper takes a different approach by combining tower defense mechanics with resource mining and roguelike progression. Between enemy waves, you dig underground for minerals that allow you to upgrade weapons, shields, and automated systems protecting your base. The loop of mining, upgrading, and defending creates a tense rhythm where time management becomes a core part of the strategy.
- Original price: $17.99
- Sale price: $7.19
- Discount: 60%
- Best for: Players who enjoy roguelike progression and resource management
Thronefall
Thronefall blends tower defense gameplay with minimalist city building. During the day, you expand your settlement, construct defenses, and improve your economy. When night falls, waves of enemies attack your base, forcing you to rely on the defenses you built earlier. The game is known for its simple visuals and clear mechanics that make it easy to learn but difficult to master.
- Original price: $12.99
- Sale price: $8.44
- Discount: 35%
- Best for: Players who enjoy a mix of strategy, city building, and defense
Dungeon Warfare 2
Dungeon Warfare 2 focuses heavily on trap-based strategy rather than traditional towers. You design dungeon layouts using spike traps, flamethrowers, and other hazards that eliminate enemies before they reach the exit. Because traps interact with each other in different ways, the game rewards creative level design and careful planning.
- Original price: $9.99
- Sale price: $2.49
- Discount: 75%
- Best for: Players who prefer tactical trap placement over tower building
Defense Grid 2
Defense Grid 2 represents a more traditional tower defense experience but introduces modern improvements to the formula. The game focuses on optimizing tower placement and managing limited resources to maximize defensive efficiency. As enemy waves become more complex, you must constantly adjust your strategy and upgrade paths.
- Original price: $9.99
- Sale price: $3.79
- Discount: ~62%
- Best for: Players who want a classic tower defense challenge
The Riftbreaker
The Riftbreaker is the most ambitious title in this list and expands the genre into large-scale base building. You control a powerful mech that explores alien planets while constructing automated defenses around your base. The game mixes tower defense with action combat, allowing you to fight enemies directly while your defensive structures support you.
- Original price: $29.99
- Sale price: $9.89
- Discount: 67%
- Best for: Players looking for a large-scale base-building and defense hybrid
Steam’s themed sales often highlight strategy games that might otherwise go unnoticed. Because many of these titles are discounted heavily during the event, you can build a solid tower defense library for less than the price of a single new release. With the Tower Defense Fest ending on March 16, players still have a short window to pick up these deals before the next major sale, the Steam Spring Sale, begins later in March.
