Core Defense – Mastery Expansion
The Mastery Expansion adds a permanent progression to Core Defense: gain mastery points and unlock various bonuses and change game mechanics. You also get five more difficulty levels, additional supercharge difficulty modifiers, new achievements and more!
0 playing now · 7 d ago
Price history and discounts
Current price: $4.99. All-time low: $4.99 (low recorded on 09/05/2026). Now is the best time to buy — the price matches the all-time low.
We track Steam prices automatically and update them within minutes of any change. The chart shows how the price changed over time and helps you decide whether to buy now or wait for a discount.
Prices in other regions
Brazil
R$16,99
Europe (€)
4,99€
United Kingdom
£4.99
Kazakhstan
1 500,00₸
Ukraine
124,00₴
Base game
Core Defense
$9.99
Screenshots
System requirements
Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Dual Core 2 Ghz
- Memory: 2 GB RAM
- Graphics: Dedicated graphics card
- Storage: 300 MB available space
Recommended
Recommended:
- Requires a 64-bit processor and operating system
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Recent price changes
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