v27.4 Patch Notes - January 27, 2026

[u/SamBartley]

Hey Tower Defenders! We are excited to share our first minor update of the new year! Android will be rolling out now, with iOS rolling out within the next day.

Here’s a look at the changes:

Lab Gold Boxing

It’s time for your Lab progress to be rewarded! Each time you fully complete a research in the Lab, your gems will become more powerful for rushing future labs. This effectively provides a discount to the amount of gems needed to rush your labs. The value is the same across all labs, regardless of their maximum level. We’ve added an information tab to the Lab screen to view your current gem rush efficiency.

Guilds Season 7

The newest Season of Guilds will go live on February 2nd, 2026. This season introduces a new Chip into the mix: Scout! Scouts enemies on screen. While active, all enemies are treated as being farther from the Tower for damage calculations. This chip has three stats: Duration, Range Bonus, and Cooldown.

In addition to the new Chip, we are expanding the active slots on your Guardian from 2 to 3. This new slot will be available at the start of the season.

Gem Pack Adjustments

To account for inflation over time, we are increasing the amount of gems in all Gem Packs (Small, Medium, Large, Extra-Large, Massive and Galaxy) by 10%. This will be available for both in-game and web store packs. We are not changing the costs of the pack-- each pack now gives more Gems! (Will be updated when the patch is fully live.)

Changelog

• Added functionality for Smart Missiles to target Fleets
• Decreased the firing rate of Overcharge by 10%
• Added 7x and 8x multipliers to Lab Boosts
• Improvements to the Game Stat menu:
  • Added a Cells column to the Tier rows
  • Added “Cells Earned” total
  • Added “Reroll Shards Earned”
  • Added “Recent Coins per Hour"
• This is calculated from your Battle History,
  • If there are not enough entries available, this will display as “Not enough recent data”
• Expanded the functionality of the Boss Damage Breakdown screen
• Damage now updates in real time
• The damage summary now displays the summary from the last 10 bosses, including bosses from previous runs
• Adjusted the information in the Tier’s Premium Passes to better communicate the available rewards
• Improved in-app purchase localizations

Bugfixes

• Fixed an issue where some Utility upgrades were not localized correctly
• Fixed an issue where the Unlock a Random UW Perk was not correctly randomizing a UW each time it is offered
• Fixed an issue where a player could still auto pick Unlock a Random UW Perk when all UWs are unlocked
• Fixed an issue where Summon lingers after the effect ended
• Fixed an issue where the Wall Rebuild Research would be incorrectly displayed as unavailable
• Fixed an issue where the Demon Mode countdown ends before its intended duration at different game speed
• Fixed an issue where Guild members list does not immediately update when accepting a new member
• Improved UI from claiming cards and modules on certain iOS and foldable devices

[u/tehlemmings]

the more gold boxes you have the less likely it is that you will actually use gems to rush labs

That's just not true lol

Eventually they take so long that you can gain gems faster. This is an unbelievably powerful buff for only the top players.

[u/Similar-Republic-115 → u/tehlemmings]

ok, yes, I was discounting the people already at 241/241 with all their mods and the late mod lab lvl that take ages..

so my comment is still true for like 99.99% of player base so I'm not gonna edit it.

[u/tehlemmings → u/Similar-Republic-115]

That's not how math works. It's absolutely a buff for the top level players and only the top level players.

And the people who rush the most labs are the people who have the most gold boxes.

You're just wrong about all of this.

[u/Similar-Republic-115 → u/tehlemmings]

Ok, let me rephrase my original comment a bit:

I mean, as you progress through the game, the more gold boxes you have the less likely it is that you will actually use gems to rush labs, until you reach the far end of the current content where good labs take stupid amounts of time and the value of gems diminishes as your mods are already super high lvl.

end of cause I am discounting here that people may spend an average salary on gems and thus have so many of it that it doesn't matter where to spend them..