Royal Defense - Invisible Threat
Good Games, Creobit · 8Floor · Dec 4, 2014
Delayed observation
Observed
0
Last tracked
0
All-time peak
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Player count last observed
Live player data is temporarily unavailable; historical values remain visible for context.
Royal Defense - Invisible Threat - Steam Charts & Historical Stats
The battles haven't stopped raging in the kingdom! Invisible Threat contains three new episodes for true tower defense fans. Explore historical player activity and pricing for Royal Defense - Invisible Threat. Player-count data was last observed May 2, 2026.
Price
$1.99
Genre
Casual
Developer
Good Games
Royal Defense - Invisible Threat player count and price summary
- Current players
- Unavailable
- All-time peak
- Unavailable
- 24-hour player change
- Unavailable
- Current US price
- $1.99
Player count last observed . Values marked unavailable are not estimated.
Media gallery 5 screenshots · 0 videos
Screenshots
Game Insights
Buy Verdict
Watch — $1.99.
Decent deal at 0% off, but might drop further. Watch for better opportunities.
▲
~54 days until next sale
Value Score
Great Value — 100th percentile.
Price-to-player ratio ranks in the 100th percentile.
▲
Market pricing tier
Genre Benchmarks
Value Ratio
Top 0%
Player count
Price History
Lowest Price
$1.99
Feb 2026 across all regions
Current Price
$1.99
US region
No Recent Price History
Price history data will appear here once more pricing information becomes available.
System Requirements
Platform Support
Windows
macOS
Windows Requirements
Minimum:
Minimum:
- OS *: Windows XP SP3
- Processor: 1500 MHz
- Memory: 512 MB RAM
- Graphics: OpenGL 3.0 compliant with 1.0GB of video RAM
- DirectX: Version 9.0
- Storage: 75 MB available space
Recommended:
Recommended:
- OS *: Windows 7 or later
- Processor: 2000 MHz
- Memory: 1 GB RAM
- Graphics: OpenGL 3.0 compliant with 1.0GB of video RAM
- DirectX: Version 9.0
- Storage: 75 MB available space
macOS Requirements
Minimum:
Minimum:
- OS: OS X 10.6
- Processor: 1500 MHz
- Memory: 1 GB RAM
- Graphics: OpenGL 3.0 compliant with 1.0GB of video RAM
- Storage: 75 MB available space
Recommended:
Recommended:
- OS: OS X 10.8
- Processor: 2000 MHz
- Memory: 1 GB RAM
- Graphics: OpenGL 3.0 compliant with 1.0GB of video RAM
- Storage: 75 MB available space
Pricing
Paid Game
CDN$ 2.59 (CAD)
Additional Information
Categories
Single-player
Downloadable Content
Steam Achievements
Steam Trading Cards
Family Sharing
Supported Languages
English, Italian, German, Spanish - Spain, Dutch, Portuguese - Brazil, Russian
Official Website
https://www.facebook.com/8FloorGames
Current Pricing
💰
CDN$ 2.59
Regular Price
Historical low: $1.99
(Feb 2026)
Additional Information
🆘
Support
🎁
Purchase Options
1
package options
Developer Analytics
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About This Game
The battles haven't stopped raging in the kingdom! Invisible Threat contains three new episodes for true tower defense fans. We've spent more time on balancing the levels for Steam players. We've also added new enemies to diversify the game. You'll need to use new tactics to beat them!
Detailed Description
The battles haven't stopped raging in the kingdom! Invisible Threat contains three new episodes for true tower defense fans. We've spent more time on balancing the levels for Steam players. We've also added new enemies to diversify the game. You'll need to use new tactics to beat them!
• Three new episodes
Wasteland – orcs have hidden amongst sharp and dangerous cliffs.
Fiery Plateau – destroy all the enemies on a burning plateau.
Mystic Valley – defend yourself against mystical creatures in an enchanted forest.
• Four new units, each with its own unique abilities.
Skeleton, Necromancer, Fire Elemental, Nature Elemental.
• Four new achievements. Unique quests made specially for the new episodes. Challenge yourself with exciting trials!
• The DLC also contains 150 free crystals for store upgrades. You can spend them however you like, since you don't need them to complete the game.
Please leave your comments and suggestions for improving the game and the genre!
Key Features
• Three new episodes
Wasteland – orcs have hidden amongst sharp and dangerous cliffs.
Fiery Plateau – destroy all the enemies on a burning plateau.
Mystic Valley – defend yourself against mystical creatures in an enchanted forest.
• Four new units, each with its own unique abilities.
Skeleton, Necromancer, Fire Elemental, Nature Elemental.
• Four new achievements. Unique quests made specially for the new episodes. Challenge yourself with exciting trials!
• The DLC also contains 150 free crystals for store upgrades. You can spend them however you like, since you don't need them to complete the game.
Please leave your comments and suggestions for improving the game and the genre!
Frequently Asked Questions
Is Royal Defense - Invisible Threat worth buying right now?
Watch — $1.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Royal Defense - Invisible Threat go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.
Is Royal Defense - Invisible Threat free to play?
Royal Defense - Invisible Threat costs $1.99 on Steam.
What genre is Royal Defense - Invisible Threat?
Royal Defense - Invisible Threat is a Casual, Indie, Strategy game.
Who developed Royal Defense - Invisible Threat?
Royal Defense - Invisible Threat was developed by Good Games and published by 8Floor.
What platforms does Royal Defense - Invisible Threat support?
Available on Steam for Windows, macOS.