Universal Tower Defense Z How to Get New Units: The Ultimate Guide

Learn exactly in Universal Tower Defense Z how to get new units, including secret, unrivaled, and exclusive characters from the latest major update.

Are you struggling to figure out in Universal Tower Defense Z how to get new units after the massive recent update? You are definitely not alone. With over 24 fresh characters added to the roster, knowing exactly in Universal Tower Defense Z how to get new units is crucial for dominating harder stages and raids. This massive content drop introduced everything from Secret and Unrivaled tiers to exclusive summer event characters and Marvel-inspired brawlers.

Whether you are looking to evolve your current roster into Boundless powerhouses or you just want to farm the Extractions mode for rare drops, this guide covers it all. We will break down drop rates, specific game modes, and the best strategies to expand your collection efficiently so you can build the ultimate defense.

Understanding the Unit Rarity System

Before diving into specific farming spots, it is important to understand the hierarchy of characters. The game features a diverse rarity system that dictates a character's overall power, level cap, and passive abilities. If you are wondering in Universal Tower Defense Z how to get new units that actually impact the meta, you need to target the higher tiers.

Here is a quick breakdown of the rarity tiers you will encounter throughout your gameplay:

Rarity TierDescription & Acquisition MethodExample Units
BoundlessEvolutions of Secret units with increased caps and new passives.Jinoo (Shadow Monarch), The Strongest in History
SynchroFused by Synchro Driving two units in each other's range.Majestic Armor, Underworld God (Primordial)
UnrivaledEvolutions of Mythic units with new visuals and passives.King Sailor (Unrivaled), Visionary
ExclusiveFound in limited events, Battle Passes, or game-mode shops.Alpha Devil, Mighty Roach, Summer Units
SecretObtained mostly from specific stages or rare banner summons.Cursed Vessel, Infinity Sorcerer, Drill Hero Spiral
MythicPulled from banners or dropped from high-level stages.Jane Juliet, Judgement Sorcerer, Super Roku
Legendary to RareStandard pulls from all summoning banners.Bulmo, Admiral, Gaaru, Laffy

Farming Secret Units in Story and Raids

For many players, the biggest question regarding Universal Tower Defense Z how to get new units revolves around the elusive Secret rarity. These characters are typically locked behind specific game modes and acts, requiring dedicated grinding rather than just spending gems.

Community reports suggest that grinding these specific stages on higher difficulties yields the best results. Here is where you can find the newest Secret units added in the recent major update:

Unit NameGame Mode / LocationNotes / Requirements
Drill Hero SpiralBeast Desert (Stage Act 3)Complete the final stage of Beast Desert.
Ice Queen EvoBanner EvolutionEvolve from Rukia (White Haze) pulled from the banner.
Flame Captain EmbersReaper City RaidDrops from the final stage of the Reaper City Raid.
Light Prince AscensionHollow Destroyer vs ReapersGrind this specific game mode for a chance to drop.
King (Yuhabach)Universal Tear / RiftsCan be obtained from standard Universal Tears or Rifts.

When farming the Reaper City Raid for Flame Captain Embers (Yamamoto), player experience indicates that bringing a team with high area-of-effect (AoE) damage is essential for clearing the final waves efficiently. Make sure your team is fully upgraded before attempting the final act.

The Extractions Mode: Marvel Collaborations and More

The latest patch introduced a highly praised game mode called Extractions, which is the primary answer for players asking in Universal Tower Defense Z how to get new units with superhero themes. This mode features characters inspired by the Spider-Man universe, offering a refreshing change of pace from the standard anime roster.

The Extractions mode operates on a percentage-based drop system. You will need to complete runs to roll for these exclusive characters at the end of the match.

Unit Name (Theme)Drop RateGame Mode
Human Spider (Spider-Man)95%Extractions
Iron Billionaire (Iron Man)25%Extractions
Symbiotic Alien (Venom)15%Extractions
Trickster PhantomPity at 8 RunsExpeditions (Castle of Greed)

In addition to the superhero units, the Castle of Greed within the Extractions area offers three other obtainable Mythic units. The inclusion of an 8-run pity system for the Trickster Phantom makes it one of the most accessible high-tier units in the current patch.

Summer Events and Exclusive Capsules

Limited-time events are always a massive draw for the community. If you want to know in Universal Tower Defense Z how to get new units that will not be around forever, you need to participate in the Summer Event.

By playing the Summer Event game mode, you earn special summer currency. This currency is used to open Summer Capsules, which contain exclusive seasonal units. The two standout exclusive units from this event are:

  • Ash and Valkyrie
  • Asura and Wrath

These units are strictly obtainable through the Summer Capsules. Make sure to grind the event stages daily to maximize your currency income before the event ends. For more general strategies on tower defense positioning during these unique seasonal events, check out the official Roblox developer hub to better understand enemy pathfinding mechanics.

Summoning Mythics and Unrivaled Characters

The standard summoning banner remains a core progression mechanic. The banner has been updated with nine new Mythic units, including Body Captain, The Terror, Cat Captain, Zombie Apostle (Corpse Maiden), and Fatality.

However, the ultimate prize in the summon area is the Visionary. Classified as an Unrivaled unit, she boasts an incredibly low drop rate of 0.005%. While she counts as a Mythic for banner purposes, her Unrivaled status gives her a higher level cap and superior passives.

Actionable Tips for Banner Summoning:

  • Save your gems: Only pull when there is a unit featured on the banner that synergizes with your current team composition.
  • Check the Index: Always verify the current banner rotation in the unit index before spending your hard-earned gems.
  • Understand Pity Systems: Keep track of your pulls to maximize your guaranteed drops, ensuring you don't waste currency right before a rotation.

Customizing Your Roster with Skin Crates

While skins do not offer statistical advantages, they are a massive part of the player experience. The latest update introduced a robust skin system, featuring over 17 new cosmetic looks for various characters, including a popular Bunny Suit for Bulma, as well as various martial artist and student outfits.

Skins can be accessed by navigating to the "Units" menu, selecting "Skins," and then opening the "Crates" UI.

Crate TypeCurrency UsedNotes
Contest Skin CrateGems (15,000 per crate)Standard way for free-to-play users to get skins.
Summer Skin CrateSummer CurrencyTied to the limited-time summer event capsules.
Premium Skin CrateRobuxOffers slightly better drop rates for Epic/Legendary skins.

Be warned: chasing Legendary skins can be incredibly expensive. Community reports show players spending upwards of 1.5 million gems just to unlock specific outfits. Always prioritize spending gems on actual units to improve your combat power before diving into the cosmetic crates.

Frequently Asked Questions (FAQ)

In Universal Tower Defense Z how to get new units quickly as a beginner? As a beginner, focus on the standard summoning banner to build a base of Rare, Epic, and Legendary units. Once you have a solid team, start tackling Story Mode to unlock basic Secret units, and participate in the Extractions mode for high-drop-rate units like Human Spider.

How do I evolve a unit into a Boundless or Unrivaled tier? You need to obtain the base Secret or Mythic unit first. For example, to get Ice Queen Evo, you must first pull Rukia from the banner and then meet the specific in-game evolution requirements—usually involving sacrifice units and currency—to ascend her to her final form.

Are the Robux premium skin crates worth it? According to player experience, while premium crates offer slightly better drop rates for high-tier skins, they are generally not worth real-world money unless you are a dedicated cosmetic collector. Free-to-play players can access the same skins by spending gems on Contest Skin Crates, though it requires significant grinding.

Where do I find the Synchro Drive feature? Synchro Driving allows you to fuse two compatible units by placing them within each other's attack range during a match. This creates a powerful Synchro unit, such as Majestic Armor or Underworld God, which combines their strengths for massive damage output on the battlefield.