- All Star Tower Defense X units serve distinct combat roles including damage, economy, and crowd control.
- Unit evaluation depends on attack type, range, SPA, AoE coverage, and upgrade scaling rather than rarity alone.
- Evolution paths require specific base units and progression materials to unlock stronger forms.
- Team composition should balance DPS, economy, and support for consistent wave clearing.
- Orb system enhances compatible units and can significantly improve older or specialized characters.
Understanding All Star Tower Defense X Units System
Building an effective team in All Star Tower Defense starts with understanding how units function. Every unit is defined by several core attributes that determine its role on the battlefield. Instead of chasing rarity, focus on how a unit contributes to your overall strategy.
This guide covers the original All Star Tower Defense (ASTD) by Top Down Games. All Star Tower Defense X (ASTDX) is a separate game with different units, traits, and systems. Do not mix progression content between the two.
Core Unit Attributes
| Attribute | Description | Impact on Gameplay |
|---|---|---|
| Attack Type | Single-target, AoE, or hybrid | Determines effectiveness against lone bosses vs. dense waves |
| SPA | Seconds per attack | Lower SPA means more consistent damage output |
| Range | Effective attack radius | Longer range covers more path and intersections |
| Placement | Ground or Hill | Hill-only units have restricted placement options |
| Upgrade Path | Stat improvements per level | Defines late-game scaling and ability unlocks |
When evaluating a new unit, compare its base damage against its SPA. A unit with 500 damage and 2 SPA (250 DPS) often outperforms a unit with 1000 damage and 6 SPA (166 DPS) in practical wave-clearing scenarios.
Unit Roles and Combat Categories
Every successful ASTD team relies on a mix of specialized roles. Placing only high-damage attackers often leads to economy failure or being overwhelmed by fast enemies. The game categorizes units into several functional groups.
Damage Dealers
- Primary wave clearers
- Single-target or AoE focus
- Scales with upgrades
- Examples: Koku, Star Boy, Kovegu
Economy Units
- Generate battle cash
- Fund expensive upgrades
- Essential for long matches
- Examples: Jeff (CEO), Bellma
Support / Crowd Control
- Slow or debuff enemies
- Buff allied units
- Control enemy movement
- Example: Black Stache (Timeskip)
Role Comparison Table
| Role | Primary Function | Best Mode | Placement Priority |
|---|---|---|---|
| DPS Carry | Maximum damage output | Story, Raids | Mid-to-late game |
| AoE Clearer | Dense wave removal | Infinite Mode | Early-to-mid game |
| Economy | Cash generation | All modes | First placement |
| Slower / CC | Enemy speed reduction | Infinite, Trials | After economy unit |
| Hybrid | Mixed damage and utility | Flexible | Depends on team needs |
A reliable beginner team includes one economy unit, two damage dealers (one single-target, one AoE), and one crowd-control unit. Fill remaining slots based on the specific mode requirements.
Notable Units and Tier Rankings
Unit effectiveness shifts based on mode, enemy type, and upgrade level. The following rankings reflect general usefulness across Story, Infinite, and Raid content based on overall community consensus and practical performance.
Top Unit Rankings
| Tier | Unit | Role | Key Strength |
|---|---|---|---|
| S | Jeff (CEO) | Economy | Generates large cash flow for expensive setups |
| S | Bellma (SUPER Money Corp) | Economy | Upgradable money production for long matches |
| S | Black Stache (Timeskip) | Support | Powerful slow effect controls difficult waves |
| A | Star Boy (Requiem) | Damage / Utility | Combines offense with useful abilities |
| A | Koku Black Pink | Damage | Consistent ranged attacker for wave clearing |
| A | Stampede (100%) | AoE Damage | Powerful area damage for grouped enemies |
| B | The Pharaoh | Damage | Solid coverage but competes with stronger options |
Combat tier lists measure how effectively a unit defeats enemies. Trading value lists measure scarcity and collector demand. A unit can be low on the combat tier list but hold high trading value due to limited availability.
Detailed Unit Profiles
| Unit | Placement | Attack Type | Best For | Upgrade Priority |
|---|---|---|---|---|
| Black Stache (Timeskip) | Ground | AoE | Infinite Mode, difficult stages | High — slow effect improves with levels |
| Koku | Ground | Single-target | Early-to-mid Story progression | Medium — multiple stronger variants exist |
| Zaruto | Ground | Ground-based | Long-running progression line | High — evolved forms are significantly stronger |
| Kovegu | Ground | AoE | Late-game wave clearing | High — fusion-style high damage output |
| Mysterious X | Ground | AoE | Late-game scaling | High — upgraded forms improve combat value |
Evolution Paths and Materials
Evolution is a core progression mechanic that transforms eligible units into stronger versions. Most evolutions require the base unit plus specific evolution materials earned through Story stages, Raids, or special events.
Identify Evolvable Units
Check whether a unit has an evolution path by reviewing its profile in the unit inventory. Units like Black Stache, Koku, Zaruto, and Star Boy all have progression lines that lead to stronger forms.
Gather Required Materials
Evolution typically requires the base unit, specific evolution units earned through Story progression, and sometimes special items from Raids or Trials. Farm the appropriate stages based on what your chosen evolution demands.
Access the Evolution Menu
Navigate to the evolution interface and select the base unit. The system displays all required materials and highlights any missing components before confirming the evolution.
Confirm and Upgrade
Once all materials are available, confirm the evolution. The resulting unit inherits improved stats, better abilities, and often a new attack pattern or expanded range.
Do not use evolution material units as fodder or trade them away carelessly. Some evolution materials are rare and time-gated, making them difficult to replace if wasted.
Evolution Overview
| Base Unit | Evolved Form | Material Source | Key Improvement |
|---|---|---|---|
| Black Stache | Black Stache (Timeskip) | Story progression units | Enhanced slow effect |
| Bellma | Bellma (SUPER Money Corp) | Progression path resources | Increased cash generation |
| Koku | Multiple Koku variants | Story evolution units | Improved damage and attack patterns |
| Zaruto | Higher-tier Zaruto forms | Progression units | Significantly better combat performance |
| Star Boy | Star Boy (Requiem) | Specific evolution materials | Combined damage and utility |
Orb System and Unit Optimization
The Orb system adds a layer of customization to ASTD units. Orbs provide stat bonuses, reduce deployment costs, improve range, or enhance specific units. Choosing the right Orb can elevate a unit from average to exceptional.
Orb Types and Effects
| Orb | Type | Effect | Best For |
|---|---|---|---|
| Cost Orb | Utility | Reduces deployment cash cost | Expensive opening units |
| Blue Eye Orb | Range Utility | Increases effective range | Units covering multiple lanes |
| Universal Reduction Orb | Attack-Speed | Reduces SPA for compatible units | High-DPS damage dealers |
| Fire Rage Orb | Specialized | Major unit-specific improvement | Specific compatible unit setups |
| Demon M Orb | Unit-Specific | Enhances associated unit | Dedicated builds |
| Prey Eye Orb | Unit-Specific | Specialized stat boost | Linked unit compositions |
| Moon Orb | Unit-Specific | Orb-specific performance boost | Late-game unit builds |
| Rose Orb | Unit-Specific | Upgrades designated unit | Specialized team setups |
Prioritize Universal Reduction Orb and Blue Eye Orb for general team improvement. Save unit-specific Orbs for units you actively use in Infinite Mode or Raids rather than equipping them on bench characters.
Orb Acquisition Methods
| Method | Orb Type | Difficulty | Notes |
|---|---|---|---|
| Orb Progression Content | Cost Orb, Blue Eye Orb | Medium | Earned through standard Orb progression |
| Challenge Rewards | Specialized Orbs | Hard | Tied to specific Challenge completions |
| Trial Completion | Unit-Specific Orbs | Hard | Requires developed roster |
| Event / Limited Content | Unique Orbs | Varies | Availability changes with updates |
Summon Strategy and Team Building
Obtaining strong units requires efficient use of the Summon Gate. The standard banner rotates featured units hourly, and Gems serve as the primary summon currency. Smart summoning habits accelerate team development significantly.
Review the Current Banner
Open the Summon Gate before spending any Gems. Check which high-rarity units are featured and whether they fill a gap in your current roster. Wait for a strong banner if the current lineup does not improve your team.
Use 10x Summons
A single summon costs 50 Gems, while a 10x summon costs 450 Gems. The 10x option saves 50 Gems per batch and provides a pity mechanic that prevents extremely long streaks without a 5-star unit.
Farm Gems Through Progression
Clear Story stages for first-time rewards, push Infinite Mode for wave milestones, complete daily tasks, and redeem official codes. Passive systems like the Time Chamber also generate resources over time.
Build Around Roles
Prioritize filling missing team roles over collecting duplicates. A balanced roster needs economy, early damage, late-game scaling, and crowd control before chasing niche or luxury units.
Save Gems for banners featuring units that directly address your team's weakest role. Spending impulsively on every banner slows progression and often leaves critical gaps unfilled.
Team Building Checklist:
- Obtain at least one economy unit (Jeff or Bellma)
- Secure a reliable AoE damage dealer for wave clearing
- Add a crowd-control or slow unit for Infinite Mode
- Invest in at least one evolution path for late-game scaling
- Equip Orbs on primary damage dealers and economy units
- Push Story Mode to unlock all farming stages
Mode-Specific Unit Recommendations
Different game modes reward different team compositions. Story Mode values efficient clearing and economy management, while Infinite Mode demands scaling damage and crowd control. Raids and Trials require specialized setups.
Mode Strategy Table
| Mode | Team Priority | Key Units | Reward Focus |
|---|---|---|---|
| Story Mode | Economy + early AoE | Jeff, Koku, Stampede | Gems, EXP, progression units |
| Infinite Mode | Scaling DPS + CC | Black Stache, Star Boy, Kovegu | Wave milestone rewards |
| Trials | High single-target DPS | Mysterious X, Zaruto variants | Special progression materials |
| Challenges | Flexible multi-role | Mixed roster with utility | Orb-related resources |
| Raids | Sustained DPS + economy | Full optimized team | Raid-specific evolution materials |
| Material Farming | Fast low-cost clearing | Efficient AoE units | Evolution units and currency |
No single team excels in every mode. Build multiple unit configurations and swap between them based on the content you are tackling. Material farming teams should prioritize speed, while Raid teams need maximum sustain and damage.
FAQ
Q: What is the difference between All Star Tower Defense and All Star Tower Defense X?
All Star Tower Defense (ASTD) is the original game by Top Down Games. All Star Tower Defense X (ASTDX) is a separate Roblox game with different units, traits, elements, and progression systems. Content between the two should not be mixed.
Q: Which All Star Tower Defense X units are best for beginners?
Beginners should prioritize economy units like Jeff (CEO) and Bellma (SUPER Money Corp), along with accessible AoE damage dealers such as Koku or Stampede (100%). These units provide reliable wave clearing and fund expensive late-game upgrades.
Q: How do I evolve units in All Star Tower Defense?
To evolve a unit, you need the base unit, specific evolution material units earned through Story progression, and sometimes special items from Raids or Trials. Access the evolution menu, select the base unit, and confirm once all materials are available.
Q: Should I spend Gems on every Summon banner?
No. Save Gems for banners that feature units filling a gap in your current team. A 10x summon costs 450 Gems compared to 500 for ten individual summons, and the pity system rewards consistent investment on a single banner.
Q: What is the difference between the combat tier list and the trading value list?
The combat tier list ranks units by how effectively they perform in battle. The trading value list ranks units by scarcity, collector demand, and market value. A unit can be weak in combat but highly valuable in trading due to limited availability.