See these official channels for continuous updates and changelogs:
Below is a direct quote of v27.1 with update details from Tech Tree Games, but with relevant cross-links to new game glossary and data on the site.
“New Enemy: Fleets
- A new enemy type has invaded higher tiers! Fleets is a new enemy type that spawns in Tier 14 and up. This new enemy type has a large amount of health bring a new challenge to battles. Fleets approach your Tower with a group of enemies, and are not impacted by direct targeting. Fleets spawn less often at lower tiers, and more frequently at higher ones.
We’re introducing three enemy types under Fleets:
- Commander: A passive unit that stays outside of the Tower's range, empowering enemy health within its area of effect.
- Overcharge: An attacker that stops outside of the Tower's range, shooting a returning projectile that doubles its power with each subsequent hit.
- Saboteur: A specialized unit that latches onto the Tower, disabling a random UW on impact and restoring the UW when it is defeated.
New Tiers
- We have added Tier 19, Tier 20, and Tier 21 into the game. These new tiers are paired with new milestones and a stronger presence of Fleets. Here’s a look at the new content available:
New Card
- The newest card, Area of Effect Card, increases AOE damage to specific sources: Inner Land Mine, Poison Swamp, Smart Missile, Flame Bot, and Land Mine. Area of Effect Mastery increases the range of all damage area of effects, and unlocks additional research.
- This card is unlocked as a mastery reward at Tier 20. Additionally, the prerequisites for unlocking Card Mastery stays at 30 maxed cards, so your access to Card Mastery is not impacted by new milestone content.
Assist Modules
- The Assist Modules feature unlocks as a milestone reward in Tier 19, Wave 40. Players can spend stones to unlock an Assist Module slot for each module type. When an Assist Module slot is unlocked, you can equip a module that matches that slot type.
- Assist Modules maintain their Main Effect, Unique Effect, and Substat at a reduced efficiency. You can increase the efficiencies of these values with stones and through lab research (unlocked Tier 19, Wave 50). You won’t be able to equip modules that share the same name.
New Labs
We have a number of new labs available as milestone unlocks, including: