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Royal Defense - Invisible Threat
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Royal Defense - Invisible Threat

Indie, Strategy, Casual, Steam Achievements, Steam Trading Cards, Single-player, Downloadable Content, Family Sharing, Tradable

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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!

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