What is Radiant Defense PC?

Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes. Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin! This page focuses specifically on the PC (Windows) version of the game, including prices, regions, activation methods and compatible storefronts.

How can I find the best price for Radiant Defense PC?

We track live prices for Radiant Defense PC from official retailers and trusted third-party marketplaces. Use the country, platform and service filters below to compare offers side by side and quickly spot the cheapest key that works in your region.

How do I redeem a Radiant Defense PC game key?

After you buy a Radiant Defense PC game key, you'll receive a secure digital code (often called a CD key or activation key). Redeem it through the correct platform client — for example Steam, PlayStation, Xbox or another supported launcher — and the game will be added to your library for download. Always double-check platform and region compatibility before you purchase to avoid activation issues.