Radiant Defense
Space tower defense where you build the aliens' route
Hexage · Released Jul 11, 2014
- Reviews
- Very Positive
- 84% of 151
- Recent reviews
- Not enough recent
- Players
- 0
- daily peak, Oct 31, 2026
- Steam Deck
- Playable
- Last update on Steam
- 7 years ago
- Jun 17, 2019
What is Radiant Defense?
This single-player, 2D tower defense game takes place in space during an alien invasion. Across 14 missions, you build a fortress, place traps and upgrade weapons to stop incoming waves.
For you if...
- +you enjoy making different weapon types support each other
Not for you if...
- −you want multiplayer competition or cooperative play
What players say
84% of 151 reviews are positive
Players praise the colorful visuals and the freedom to shape enemy paths. Common complaints concern sharp difficulty spikes and limited control over turret targeting. A recent player also reports frequent crashes.
Screenshots and trailer
Radiant Defense system requirements
Minimum: 2 GB RAM, 1 GB of disk space.
As published by the developer.
Can my PC run Radiant Defense?
The published requirements do not name a graphics card we can compare.
Set up my PC →Minimum
- OS
- Windows 8
- Processor
- 2 GHz Dual Core
- Memory
- 2 GB RAM
- Storage
- 1 GB available space
- DirectX
- Version 10
Does Radiant Defense have co-op or multiplayer?
No: single-player only, no multiplayer modes declared.
Does Radiant Defense run on Steam Deck?
Playable Playable: it runs on Steam Deck with some adjustments.
- Some text entry requires manually opening the on-screen keyboard
- All functionality is accessible with the default controller configuration
- Shows Steam Deck controller icons
- In-game text is legible on Steam Deck
- Default graphics settings perform well on Steam Deck
PC version details
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows
- Achievements
- 10
- Steam features
- Cloud saves, Family Sharing
- Languages
- Text only: English, German, Portuguese - Brazil, Italian, Spanish - Spain, French, Russian.
Does Radiant Defense use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam
