Line Defense v1.0.20 — Mutations Update
The battlefield has evolved.
Version 1.0.20 introduces the new Mutation system, expanded status effects, major boss overhauls, Freeplay improvements, gameplay balancing, and 7 new Steam achievements. Harder difficulties are now significantly more dangerous as enemies gain access to powerful mutated variants with enhanced abilities and shadow-form visuals.
New Features
Enemy Mutations
- Enemies can now mutate into stronger variants on Hard difficulty and above
- Mutated enemies now appear in shadow form
- Increased mutation spawn chance
- Bosses can now mutate during regular rounds on harder difficulties
- Boss mutations are now restricted from appearing in invalid situations or early Freeplay rounds
Expanded Status Effect System
- Added Shocked status effect
- Added Crippled status effect
- Poison status effects expanded for both enemies and players
- Players can now be inflicted with Fire
- Multiple status effects can now stack simultaneously
- Status icons now display with level numerals
- Fire can now spread between nearby enemies
- Melt effects expanded to additional attacks and abilities
Boss & Enemy Overhauls
Sphere Boss
- Now fires energy waves
- Energy wave attacks now inflict Shocked
- Added charge animation before attacks
- Added new sound effect when struck by energy waves
- Now fires spikes in a 360-degree range
- Now chases players more aggressively
- Visual bobbing and size consistency improved
Noe
- Noe now hovers
- Added rocket attack
- Noe now bounces off walls
- Added visual indicators for rocket attacks
- Updated and overhauled spritework
- Fixed mutation graphical glitches
Additional Enemy Changes
- Various enemies now bob up and down
- Tank and Boss Tank projectiles no longer lose speed
- Tank enemies now fire tank shells
- Tank hurtboxes now more accurately match sprites
- Smaller enemies become immobilized while Shocked
Gameplay Changes & Balance
Character & Combat Changes
- Characters now decelerate naturally instead of stopping instantly
- Ron’s lightning attacks now inflict Shocked
- Parried energy waves now inflict Shocked on enemies
- Archy’s arrows inflict stronger Fire debuffs with perk levels
- Molotov sweetspots now inflict stronger Fire effects
- Poison damage now scales with damage perks
- Dead players can now dash
- Dead players can now parry using Essence
- Dead player visuals and optimization improved
Balance Adjustments
- Reduced Sparrow’s Flintlock damage
- Reduced Sward’s main attack damage
- Reduced Tank bullet damage
- Reduced Mechnoe laser damage
- Reduced Doc’s healing effectiveness in several abilities
- HP Generator Boost no longer grants tower invulnerability
Freeplay Improvements
- Enemy HP now scales deeper into Freeplay
- Enemy speed now scales deeper into Freeplay
- Freeplay money multiplier increased
- Certain bosses now appear later into Freeplay progression
Steam Achievements
Added 7 new Steam achievements:
- Ouch! That's Gotta Hurt!
- Look How They Massacred My Boy!
- Not Feeling So Well
- Freeplay Fiend
- Learning To Parry
- Traffic Redirected!
- Parry Master
UI, Visuals & Polish
- Updated difficulty descriptions
- Updated unlock condition wording on character select
- Added status effect sprites
- Improved bobbing and hovering animations
- Fixed several graphical glitches and visual inconsistencies
- Fixed damage/heal numbers appearing when disabled
- Fixed shop preview glitches
- Fixed crashes caused by invalid sprite drawing
Fixes
- Fixed bosses spawning before being defeated
- Fixed invalid boss spawning during Freeplay
- Fixed achievement triggering issues in Sandbox Mode
- Fixed multiple mutation and animation related bugs
- Removed hidden debug instant-kill switch
- General optimization and polish across the game
This announcement was originally published by thesecondbaron on Steam on May 9, 2026.
Open the original on Steam