Welcome to the Empyrean Defense Wiki

Welcome to the official wiki for Empyrean Defense! Use the links below or in the sidebar to explore the wiki or search for a specific topic.

About

Empyrean Defense is a modern warfare tower defense game where you build, upgrade, and customize defenses to hold back an enemy invasion. Learn abilities and skills, craft advanced ammunition, and gather resources on the battlefield to strengthen and expand your defense.

News

We're gearing up for an exciting 2026!

  • Official Playtest: The official playtest is LIVE! For anyone interested in testing the game prior to the demo and Early Access, please sign up here. Once your submission is accepted, you will receive an activation key and can head over to the Playtest Page to get started!
  • Public Demo: Our first public demo will be available in March. Come try the game, share feedback, and help shape development.
  • Steam Next Fest: Check out Empyrean Defense at Steam Next Fest June 15-22, 2026.
  • Early Access Release: Empyrean Defense launches into Early Access on July 23, 2026.

Status

v0.11.0 - Breakpoint Reservoir & Performance Improvements (March 11, 2026)

Status: 🟢 Live on Steam Playtest

New Features

  • Added 10th campaign level: Breakpoint Reservoir. Help defend Sentinel Dam and stop General Zharos from seizing control of the reservoir and its vital energy infrastructure
  • Item drops and Supply drop crates now interact with water and float on the surface instead of sinking
  • Decorative boats in water environments now move naturally with the waves

Improvements

  • Improved the wording of several loading screen tips to make them clearer and more natural
  • Increased the LOD distance for Humvees to improve their visual appearance at range
  • Default camera pan sensitivity increased slightly for smoother navigation
  • The Quit confirmation popup in the game menu now properly returns focus to the mission panel when closed
  • Improved stability and responsiveness when a large number of enemies are active
  • Updated the main UI font for improved readability

Balance Changes

  • Critical hit multiplier reduced for military sites
    • Reduced from 300% → 200%
  • Deep Impact skill adjusted
    • Reduced effect from 15% → 5%
  • Brute Force skill adjusted
    • Damage bonus reduced from 15% → 10%
  • Difficulty scaling adjusted
    • Enemy hitpoints scaling on Hard and Impossible difficulties has been reduced
  • Enemy balance adjustments
    • IFV
      • Hitpoints increased from 3500 → 3800
      • Armor increased from 45% → 60%
    • Tank
      • Hitpoints increased from 4000 → 7500
      • Armor increased from 50% → 70%
  • Mission objective changes
    • Sunflare Dunes oil objective increased from 6000 → 8000

Bug Fixes

  • Fixed an issue where enemy vessel scale could reset incorrectly
  • Fixed incorrect critical chance values appearing in the site upgrade menu
  • Fixed an issue where map mission paths displayed incorrectly for Breakpoint Reservoir
  • Fixed several issues affecting map mission flags in the demo version
  • Fixed an issue where Landmarks were not properly registered by the mission manager