Game Mechanics
Deep dive into Universal Tower Defense game systems, formulas, and hidden mechanics.
✨ Trait System
Traits are random modifiers that can dramatically boost unit power. Use Rerolls to change traits. Higher rarity traits have lower drop rates.
| Trait | Drop Rate | Effect |
|---|---|---|
| Ruler | 0.1% | Best trait in game. Massive stat boost, changes placement mechanics. |
| Duelist | 0.8% | +25% Crit Chance, +Range, +Boss Damage. Best for Kyito. |
| Sacred | 0.3% | Strong damage boost. Alternative to Ruler for main DPS. |
| Scarred | 0.3% | +25% Damage, -Cooldown, +25% Range. |
| Fortunate | Unknown | Increases gold income. Essential for Speed Cart. |
Tip: Kyito only needs Duelist (0.8%) to be effective. Kenpachi ideally wants Ruler (0.1%) or Sacred (0.3%). Speed Cart MUST have Fortunate for optimal economy.
🌟 Etherealization System
Consume duplicate units (Dupes) to enhance your main unit. Each Ethereal level unlocks new passive abilities or stat boosts.
How It Works
- • Fuse duplicate units into your main copy
- • Each fusion increases Ethereal Level (E1 → E6)
- • Higher levels unlock stronger passives
- • Never sell duplicate core units!
Priority Units
- • Speed Cart: +Money passive per level
- • Virtual Idol: Enhanced buff potency
- • Kyito: Unlocks damage passives
- • Ace/Spade: Easier to E6 than Scarlet Maid
Warning: Secret units like Sun Jin Wu require 7 duplicates for max level, which is nearly impossible at 0.00625% drop rate. Focus on Mythics instead.
💎 Relic System (Equipment)
Relics provide powerful stat boosts. Each unit can equip Hat, Top, and Bottom pieces. Mythic relics drop from high-difficulty Story Mode and Legend Stages.
Sub-stat Priority
| Stat | Max Value | Notes |
|---|---|---|
| Crit Rate | Variable | Multiplicative, not additive! (15% × 1.375 = ~20%, not 52.5%) |
| Crit Damage | +72% | Best for crit-based units like Kyito. |
| DOT Damage | +45% | Best for burn units like Ace. |
| Buff Potency | +27% | Essential for Virtual Idol/Miku. |
| Cooldown | -22.5% | Universal DPS boost for all skill units. |
| Damage | +48% | General DPS boost. |
| Range | +22% | Good for support units. |
Do
- • Prioritize 5-substat Mythic relics
- • Upgrade costs ~20k Gold per piece
- • Match relic stats to unit role
Avoid
- • Crit Rate gear on non-crit units
- • 3-substat relics (waste upgrades on new stats)
- • Accidentally selling equipped relics
Critical: Crit Rate on relics is MULTIPLICATIVE, not additive! A +37.5% Crit Rate relic only takes 15% base crit to ~20%, NOT 52.5%. Crit Rate relics are a trap for most units.
🔥 Evolution System
Evolve Mythic units to unlock their full potential. Evolution requires Takedowns (kills) and specific materials.
Requirements
- • Takedowns: 5,000-6,200 kills
- • Fragments: Burning, Ocean, Universal
- • Special Items: Unit-specific (Hats, Blades, etc.)
Best Farming Spots
- • Takedowns: Story Act 1 (fast, many enemies)
- • Materials: Half-hour Challenge (10% drop)
- • Special Items: Legend Stages (14.5% at 1000%)
Tip: Don't farm Infinite mode for takedowns - enemies are too tanky and waves are slow. Story Act 1 is much faster.
💰 Economy System
Speed Cart (Speedwagon) is the only money-generating unit in the game. Economy management is crucial for high-difficulty content.
Speed Cart
~6,000 gold per wave when fully upgraded (only 2 upgrades needed)
Fortunate Trait
Must-have trait for Speed Cart to maximize gold income
Etherealization
Higher E-levels unlock "More Money" passive
Virtual Realm Tip: Reset until you get "The Lovers" card which gives +1 placement limit. This allows 2 Speed Carts, solving all economy issues.
👹 Boss Mechanics
Bosses in Featured Challenges and late-game content have special immunities that must be handled properly.
Immunity Phase
- • Bosses start immune to Slow and Stun
- • Must break their shield/armor first
- • Use armor-piercing units (Kenpachi, Ace) to break immunity
- • Then apply CC (Shikamaru 10s stun, etc.)
Multiplayer Scaling
- • Boss HP increases with more players (150 solo → 200 duo)
- • Enemy strength also scales up
- • Kill-based mana units (Sun Jin Wu) suffer in co-op
- • Solo may actually be easier than co-op in some cases
📊 Stat Point Allocation
Units gain stat points when leveling up. Optimal allocation depends on unit role.
| Unit Type | Priority 1 | Priority 2 | Reason |
|---|---|---|---|
| DPS Units | Cooldown | Damage | Cooldown reduction has highest DPS impact for skill-based units. |
| Buff/Support | Range | Cooldown | Larger range covers more allied towers for buffs. |
⚡ Difficulty System
Adjustable difficulty multiplier affects enemy stats and rewards. Higher difficulty = better drops.
75% (Recommended Start)
- • Called "Low Modulation"
- • Best for new players
- • Story Mode & Nightmare
100% (Standard)
- • Normal difficulty
- • Balanced rewards
- • Good for farming
1000% (Expert)
- • ~400 Gems per Act
- • 14.5% material drop rate
- • Requires strong units (Ace/Kenpachi)
Efficiency Note: Don't blindly set 1000% if you can't clear quickly. A fast 100% clear often beats a slow 1000% clear in terms of rewards per hour.