Radiant Defense is a 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!

◉ Build your own route for incoming waves of enemies!
◉ More than 300 waves of aliens across 14 missions
◉ 9 upgradable weapons to kill the aliens with style
◉ 3 superweapons of mass defense
◉ Online hall of fame - your scores can only grow
◉ Signature soundtrack by Kubatko


Radiant Defense is free to play without any ads, supported only by in-app purchases. Each in-app purchase greatly enhances your tactical options.

What’s New

Version 2.4.3

Font colors in Chinese/Japanese/Korean languages.

Ratings and Reviews

4.4 out of 5
74 Ratings

74 Ratings

Polarissux ,

End Missions Impossible

So I got the game a few years ago in iPad, then a few weeks ago in iPhone. I normally end up watching a tutorial because it’s too hard to just guess what towers you’ll need, but when I got to mission 12, the only tutorials are ones with the $1 packs and I don’t want to get them, so basically it’s impossible to get past 12😭 I really wanted to play the whole game tho (4/5 stars cause the game is still good tho)

Hammetic ,

Turning Towers

Solid game overall and the $1/pack is pretty reasonable to unlock the full game.

Only complaints are that towers will randomly "wander"/spin and are often looking in the wrong direction when enemies are coming. So these towers need to rotate around to attack, but some of them do it so slowly that enemies get through because your moron tower is off looking the wrong way. So frustrating and it's not something that the player can control.

You also can't set "preferred targets" for your towers as you can in similar games. The result is often seeing these slow turning towers "chasing" enemies while ignoring closer oncoming enemies. Again, this causes enemies to get through your tower range without being hurt significantly.

Dev, if you read this, turn off this "searching for enemies" action towers do when idle. Just have them face forward or let the player chose their resting direction. I'd also just increase the speed that flame/poison towers spin.

Gear Bonz ,

Much love, needs controller support iOS

I’ve played this game for a number of years now, it’s by far the best tower defense game on mobile in any mobile OS, still play it to this day, would greatly appreciate more levels, more turrets even if to purchase and would love some controller support on iOS to minimize finger prints when playing, please release some content updates


David Peroutka
19.1 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
Infrequent/Mild Cartoon or Fantasy Violence
In-App Purchases
  1. Burning Pack $1.99
  2. Xenobiology Pack $1.99
  3. Explosive Pack $1.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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