Acquire Legendary Units First
Start with Shakumira and Admiral as they can evolve into powerful mythical units. Use codes (RELEASE, THANKYOU, UNRIVALED, 40KCCU) for starting gems and trait rerolls.
Complete Story Mode in Low Modulation
Set difficulty to 75% modulation for easier progression through Acts 1-6. Remember Hollowed Moon introduces flyers - bring air units or play with friends.
Claim Level Milestones & Achievements
Your primary source of gems and trait rerolls in early game. Check regularly - rewards available up to Level 100 (7,000 gems total).
Summon Your First Mythical Units
Aim for Kirito (pairs with Duelist trait) and Kenpachi (bypasses hyper armor). These are top-tier mythicals for end-game content.
Etherealize Your Units
Always etherealize duplicate units instead of selling them! Each star provides unique buffs and unlocks powerful passive abilities. Essential for pushing through tougher challenges.
Maximize Challenge Drop Boosts
Play challenges with friends! Up to 60% drop chance boost with 3 teammates. Always try to play challenges with a full party for better rewards.
Redeem Codes Regularly
Check the Codes page frequently for free gems, items, and boosts. Codes expire, so redeem them quickly!
Prioritize Top-Tier Banner Summons
Focus on middle banner for Kenpachi, Kuriato, Ace, and Sasuke. Avoid side banners if your goal is to acquire these specific powerhouses.
Team Composition Strategy
Story/Challenge: 1-2 Farm units, 2-3 damage dealers, 0-1 support
Infinite Mode: Focus on scaling units with Eternal/Sacred traits
Virtual Realm: Maximum DPS units with optimal relics and traits
Resource Optimization
- Complete daily quests before they reset for consistent gem income
- Farm Story stages efficiently - replay cleared stages for materials
- Farm Nightmare difficulty (75% modulation) for mythic relics
- Farm Featured Challenges for sustainable trait reroll sources
- Save trait reroll tokens for meta units like Sung Jinwoo, Berserker, Kriatu
- Complete one full relic set before starting another
- Enhance relics to maximum level (Level 15) for full potential
- Use AFK macro farming for efficient gem generation
- Join the official Discord for community tips and meta updates
Unit Upgrade Priority
- Max level your main carry unit (Berserker, Kriatu, etc.)
- Etherealize main units using duplicate units for stars and passives
- Get optimal traits on your carry units (Ruler for Berserker, Duelist for Kriatu)
- Equip and upgrade relics on carries (max to Level 15)
- Allocate Stat Points: cooldown for DPS, range for buff units
- Level secondary DPS units
- Finally upgrade support and farm units
Common Mistakes to Avoid
- Don't spread resources too thin across many units
- Don't ignore Farm units - economy wins games
- Don't use trait rerolls on low-rarity units
- Don't skip learning unit synergies and team composition
- Don't forget to check for new codes regularly
Universal Tower Defense is constantly evolving with balance changes, new units, and meta shifts. The December 2025 meta has been significantly impacted by the "Ruler" trait (+200% DMG), making units like Sung Jinwoo top priority for Infinite Mode.
Current Meta Highlights (December 2025):
- Ruler trait is meta-defining for Infinite mode
- Jinoo (Monarch) is the #1 Infinite unit when scaled
- Kriatu (Cheater) with Duelist dominates Virtual Realm
- Admiral Magma remains best budget option
- Rule (ROOM) from BattlePass is top-tier free unit
Join the Community:
Connect with other players in the official Discord server to share strategies, get team building advice, find the latest codes, and stay updated on balance changes and new content releases.