HomeGamesUpdatesPricingMethodology
Steam News7 January 20266mo ago

March Update – New Co-op Mode, Rocket Tower & Major Improvements

Hey Defender! 👋 Since the initial announcement in October, I’ve been working intensively on the March update.

In this update5

Full notes

Full Arrival of Beasts update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

6 fixes6 additions5 changes1 removal
  • Maps
  • Balance
  • Performance
  • UI and audio
  • Gameplay
addedNew Co-op ModeInstead of a complete rework, I added an additional co-op mode alongside the existing one . All maps can now be played in this new mode with any player count from 2 to 4 players , offering more flexibility and better scalability for co-op sessions.
addedNew Rocket TowerA brand-new Rocket Tower joins the arsenal, featuring dedicated rocket hit and explosion damage types and a new module positioning system for towers.
changedOnline Fast Forward2x game speed is now also available online in co-op , allowing teams to progress faster without sacrificing control or stability.
addedTechnical Improvements & StabilityThe update introduces a new save system based on JSON , replacing the previous BinaryFormatter approach. Alongside this, many optimizations, improvements and fixes were implemented across networking, UI, audio and gameplay systems.
fixedQuality Improvements & FixesInput and camera control fixes
fixedQuality Improvements & FixesMultiple sound issues resolved
All maps can now be played in this new mode with any player count24All maps can now be played in this new mode with any player count increased, buff

Arrival of Beasts changes

addedInstead of a complete rework, I added an additional co-op mode alongside the existing one . All maps can now be played in this new mode with any player count from 2 to 4 players , offering more flexibility and better scalability for co-op sessions.
addedA brand-new Rocket Tower joins the arsenal, featuring dedicated rocket hit and explosion damage types and a new module positioning system for towers.
changed2x game speed is now also available online in co-op , allowing teams to progress faster without sacrificing control or stability.
addedThe update introduces a new save system based on JSON , replacing the previous BinaryFormatter approach. Alongside this, many optimizations, improvements and fixes were implemented across networking, UI, audio and gameplay systems.
fixedInput and camera control fixes

Hey Defender! 👋

Since the initial announcement in October, I’ve been working intensively on the March update. Today I want to share a clear overview of what’s already finished and what players can expect from this update.

New Co-op Mode

Instead of a complete rework, I added an additional co-op mode alongside the existing one. All maps can now be played in this new mode with any player count from 2 to 4 players, offering more flexibility and better scalability for co-op sessions.

New Rocket Tower

A brand-new Rocket Tower joins the arsenal, featuring dedicated rocket hit and explosion damage types and a new module positioning system for towers.

Online Fast Forward

2x game speed is now also available online in co-op, allowing teams to progress faster without sacrificing control or stability.

Technical Improvements & Stability

The update introduces a new save system based on JSON, replacing the previous BinaryFormatter approach. Alongside this, many optimizations, improvements and fixes were implemented across networking, UI, audio and gameplay systems.

Quality Improvements & Fixes

  • Input and camera control fixes

  • Multiple sound issues resolved

  • Lighting issues fixed on several maps

  • Improved tower UI and module handling

  • New defense base designs for 2, 3 and 4 players

  • Improved lobby and room UI, including mode switching and player count changes without recreating rooms

  • Improved room caching and synchronization for better online stability

  • Missing translations added and text layouts adjusted

  • Important fix: Monsters can no longer get stuck on the defense base

And many more smaller fixes and improvements.

I’ll continue polishing and improving the update until release.

🗓️ Good news: The March update is still planned for release in March.

Your FTD Games Developer, Nico

👉 New here? No problem – welcome to the world of Arrival of Beasts and enjoy discovering a whole new tower defense experience!

Source

Steam News / 7 January 2026

Open original post

Changelog.gg summarizes and formats this update. How we read updates.