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City Defense ZNewsCity Defense Z – Hotfix Update
Game update

City Defense Z – Hotfix Update

City Defense Z · published 14 Oct 2025, 16:15 UTC · build 20388774

All newsPlayers around this dateRead on Steam

Dear Defenders,

We've gone through all the feedback you've given us since the release of Road Map Part 2.

After the release of Road Map Part 2, we released many hotfixes in a short time, taking into account the feedback from you.

We'd really like to thank everyone who played and provided feedback. City Defence Z is getting better and better with your input.

Changes & Fixes

Early-Game Economy Rebalanced

Resources were depleting too quickly during early waves, making it hard to build up defenses.

The starting economy has been adjusted and the growth curve is now more linear, allowing players to establish stable defenses without bottlenecks.


Laboratory Production Increased

Laboratory buildings now generate more Research Points.

Early-game players can progress more consistently, and production efficiency now scales more evenly with building level.

Permanent Upgrade Tree Adjusted

Research Point costs for unlocking permanent upgrades have been reduced.

This allows faster early-game progression and helps players reach strategic diversity sooner.

UI and Visual Improvements

Minor UI adjustments have been made.

Booster visuals have been clarified and are now easier to identify.

Several small alignment and readability issues have also been resolved.

Soldier Transport Bug Fixed

A positioning bug occurred when moving multiple soldiers by quickly dragging across the map.

This issue has been fixed. All selected units now relocate accurately within the defined area.

Font and Language Support Fixed

An issue that caused certain characters to render incorrectly in some languages has been resolved.

All supported languages now display text correctly and consistently.

Achievement System Fixes

Some achievements were not triggering even when their conditions were met.

Trigger conditions were redefined, and the system now synchronizes properly with in-game statistics.

Trade Panel Fix

A bug has been fixed where the Trade Panel would not reopen after all cards were purchased.


Controller Auto Switch

The game now automatically switches between controller and keyboard/mouse input when detected, ensuring a seamless transition without manual toggling.

Zombies Through Walls

Fixed an issue where zombies could occasionally pass through walls under certain conditions.

This hotfix strengthens City Defense Z’s early-game balance and improves overall stability and user experience.

More from City Defense Z

Other announcements

All news
Community4 Sep 2026One Year of City Defense Z | Built With Your FeedbackOne Year of City Defense Z | Built With Your Feedback On August 25, 2025 , City Defense Z went live. One year later, this is not the game we launched. That is because of you. Your reviews, forum posts, Discord messages, and bug reports shaped the year. We read them all. We still do. What Changed in Year One We started with a 10-day patch challenge, then kept going through roadmaps, major update…Esports4 Sep 2026City Defense Z is 30% Off Build, Defend, Survive!Save 30% on City Defense Z for a limited time! Build and upgrade your base, strengthen your defenses, and lead your troops against relentless waves of zombies. Plan your strategy, manage your resources wisely, and fight to keep humanity alive. Whether you're a fan of base-building, strategy, or action-packed battles, now is the perfect time to join the fight at a discounted price. Don't miss th…Esports6 Aug 2026City Defense Z is 30% Off Build, Defend, Survive!Save 30% on City Defense Z for a limited time! Build and upgrade your base, strengthen your defenses, and lead your troops against relentless waves of zombies. Plan your strategy, manage your resources wisely, and fight to keep humanity alive. Whether you're a fan of base-building, strategy, or action-packed battles, now is the perfect time to join the fight at a discounted price. Don't miss th…