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Steam News18 December 20258mo ago

Major Update 3 Is Live | City Defense Z Is 30% Off!

Winter has arrived. City Defense Z is now 30 percent off during the Steam Winter Sale, and Major Update 3 is live with new content, balance changes, and large polish improvements.

In this update11

Full notes

Full City Defense Z update

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What changed

1 fix4 additions5 changes1 removal
  • Balance
  • UI and audio
  • Gameplay
addedWinter has arrived. City Defense Z is now 30 percent off during the Steam Winter Sale, and Major Update 3 is live with new content, balance changes, and large polish improvements.
changedMajor Update 3 SummaryMajor Update 3 focuses on deeper combat, better clarity, improved onboarding, audio visual polish, expedition balance, and quality of life fixes.
addedMajor Update 3 SummaryNew defense unit Tesla Coil • New default cards and a new Night card • Improved tutorials with clearer visuals • Audio, VFX, and cinematic upgrades • Expedition balance improvements • UX improvements and bug fixes • Major Performance Optimizations
changedOnboarding ImprovementsEarly game clarity is improved without forcing actions on the player.
addedOnboarding ImprovementsCamera lock removed from multiple tutorial steps • Multiple gifs added for merge patterns • Clear hints for soldier placement and merging • Card locking explained with a new tutorial step • End Day step improved with better focus • Expedition tutorial added on NPC arrival • All onboarding steps are skippable
changedAudio and Visual PolishOverall game feel has been improved.

City Defense Z changes

addedWinter has arrived. City Defense Z is now 30 percent off during the Steam Winter Sale, and Major Update 3 is live with new content, balance changes, and large polish improvements.
changedMajor Update 3 focuses on deeper combat, better clarity, improved onboarding, audio visual polish, expedition balance, and quality of life fixes.
addedNew defense unit Tesla Coil • New default cards and a new Night card • Improved tutorials with clearer visuals • Audio, VFX, and cinematic upgrades • Expedition balance improvements • UX improvements and bug fixes • Major Performance Optimizations
changedEarly game clarity is improved without forcing actions on the player.
addedCamera lock removed from multiple tutorial steps • Multiple gifs added for merge patterns • Clear hints for soldier placement and merging • Card locking explained with a new tutorial step • End Day step improved with better focus • Expedition tutorial added on NPC arrival • All onboarding steps are skippable

Winter has arrived. City Defense Z is now 30 percent off during the Steam Winter Sale, and Major Update 3 is live with new content, balance changes, and large polish improvements.

City Defense Z

Major Update 3 Summary

Major Update 3 focuses on deeper combat, better clarity, improved onboarding, audio visual polish, expedition balance, and quality of life fixes.

  • New defense unit Tesla Coil • New default cards and a new Night card • Improved tutorials with clearer visuals • Audio, VFX, and cinematic upgrades • Expedition balance improvements • UX improvements and bug fixes • Major Performance Optimizations

New Defense Unit and Cards

• Tesla Coil added with multi target attacks and permanent upgrades Steam post image • Destroy Building card added Steam post image

• Resource Boost card added

Steam post image

• Helicopter Night Card added

Onboarding Improvements

Early game clarity is improved without forcing actions on the player.

  • Camera lock removed from multiple tutorial steps • Multiple gifs added for merge patterns • Clear hints for soldier placement and merging • Card locking explained with a new tutorial step • End Day step improved with better focus • Expedition tutorial added on NPC arrival • All onboarding steps are skippable

Audio and Visual Polish

Overall game feel has been improved.

  • Annoying background music removed • Weapon and zombie sounds rebalanced • New sounds for card locking and boosters • Improved cinematic video quality

Expedition and Balance Changes

Expeditions are now more rewarding and consistent.

  • Basic soldier reward removed • Drop chances for other units increased • Expedition success chance increased

UX and Quality of Life

Many small but impactful improvements were made across the game.

  • Locked defense units shown clearly in the left panel • Speed setting preserved during day night transitions • Clearer card texts and indicators • Tooltips added to utility cards • Population warning added for soldier placement • Food hunger debuff now updates correctly • Booster visibility time and size increased • Wall damage screen effect toggle added • Combat and animation bugs fixed • End game summary shows research points collected

Update Now

Major Update 3 is live and free for all players. Combined with the 30 percent Winter Sale discount, this is the best time to defend the city.

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Source

Steam News / 18 December 2025

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