Ajax Build & Guide The First Descendant

Ajax is the ultimate tank-class character in The First Descendant, offering exceptional survivability and team utility. As one of the three starting characters, Ajax excels at creating barriers and controlling enemy movements, making him an ideal choice for players who prefer a defensive and supportive role.


Ajax the First Descendant.

Feature Details
Role Tank
Primary Skills Orbit Barrier, Void Walk, Expulsion, Hypercube
Passive Skill Event Horizon
Specialization Creating barriers, crowd control, and enhancing team survivability
Unlock Methods Starter character, purchase, or research and craft later
Primary Strengths High survivability, crowd control, team utility

Ajax Skills

Orbit Barrier

Orbit Barrier TFD.

  • Description: Creates a barrier in front of Ajax. The barrier’s stats are influenced by Ajax’s HP and DEF. When hit, the barrier reflects damage proportional to the damage received and Ajax’s DEF. Using the skill with maximum Void Energy increases reflection damage.
  • Cooldown: 15 seconds
  • MP Cost: 30
  • Duration: 10 seconds
  • Enhanced Reflection Damage: DEF x 117%
  • How to Use: Use Orbit Barrier when encountering large groups of enemies or to provide cover for allies. Enhance it with full Void Energy for maximum effectiveness.
Void Walk

Void Walk TFD

  • Description: Jumps forward, dealing damage and stunning enemies upon landing. When used with maximum Void Energy, it increases Ajax’s Max Shield.
  • Cooldown: 20 seconds
  • MP Cost: 35
  • Damage Range: 6m radius
  • Stun Duration: 3 seconds
  • Enhanced Leap Shield Increase: Max Shield x 53%
  • How to Use: Utilize Void Walk as a primary crowd control skill to stun and immobilize enemies, allowing your team to take them down.

Expulsion TFD

  • Description: Inflicts damage and knocks back nearby enemies. When used with maximum Void Energy, it increases damage and range.
  • Cooldown: 15 seconds
  • MP Cost: 30
  • Damage Range: 4m radius
  • Enhanced Damage: Skill Power x 1,322.5%
  • How to Use: Use Expulsion to deal damage and disrupt enemy formations, keeping them away from you and your team.

Hyper Cube TFD.

  • Description: Creates a dome-shaped barrier based on Ajax’s HP and DEF. When used with maximum Void Energy, it grants a Firearm ATK increase to all allies within the barrier.
  • Cooldown: 35 seconds
  • MP Cost: 50
  • Duration: 10 seconds
  • Enhanced Barrier Firearm ATK Increase: 10%
  • How to Use: Deploy Hypercube during critical moments, such as boss fights or heavy enemy waves, to provide cover and enhance your team’s damage.
Event Horizon (Passive)

Event Horizon (Passive) TFD.

  • Description: Acquires Void Energy after using skills. When Void Energy reaches its maximum, it enhances skills and grants additional effects.
  • How to Use: Focus on using skills to build up Void Energy, maximizing the enhanced effects of your abilities.

How to Unlock Ajax in The First Descendant

To unlock Ajax in The First Descendant, you can choose him as your starting character, purchase him from the store, or research and craft him later in the game. If you choose another character at the start, you will need to gather the following materials to craft Ajax:


1. Ajax Enhanced Cells

  • Silicon x430
  • Hellion x303
  • Artificial Biometal x303
  • Ajax Enhanced Cell Blueprint
  • 200,000 Gold

2. Ajax Stabilizer

  • Hardener x386
  • Ceramic Composite x408
  • Compound Carbon Activator x29
  • Ajax Stabilizer Blueprint x1
  • 200,000 Gold

3. Ajax Spiral Catalyst

  • Compound Coating Material x239
  • Shape Memory Alloy x462
  • Positive Ion Particle x38
  • Ajax Spiral Catalyst Blueprint x1

To craft Ajax, speak to Anais in the Albion Mountains area to access the Research Institute.

How to Play Ajax in The First Descendant

Ajax’s playstyle focuses on providing shields and controlling the battlefield. Engage enemies up close, keeping them focused on you while your allies deal damage. Mastering Ajax involves effectively managing Void Energy to enhance your skills.

  • Enhanced Skills: Build up Void Energy by using normal skills. Once maxed, your skills gain additional effects, such as increased damage reflection for shields and damage buffs for allies.
  • Shields: Use Orbit Barrier and Hypercube to protect yourself and your team. Place these shields strategically to block incoming damage and provide safe zones.
  • Crowd Control: Use Void Walk and Expulsion to stun and knock back enemies. These skills are crucial for maintaining control over the battlefield and ensuring your team’s safety.

Best Modules for Ajax in The First Descendant

Equip the following modules to optimize Ajax’s performance:

  • Shield Conversion: Increases Max MP while slightly reducing Max Shield.
  • Skill Expansion: Improves the range and effectiveness of your skills.
  • Tech Specialist: Boosts the power of Tech skills.
  • Increased DEF: Significantly enhances your defense.
  • Increased HP: Provides a substantial health increase.
Best Reactor Stats for Ajax in The First Descendant

Best Reactor Stats for Ajax in The First Descendant

The best reactors for Ajax boost Skill Power and Sub Attack Power. Prioritize reactors that enhance Tech and Non-Attribute skill power, amplifying the effectiveness of your abilities.

Best Weapons for Ajax in The First Descendant

The ideal weapons for Ajax include:

  • Secret Garden (Tactical Rifle): Recovers resources and boosts damage and fire rate after using Dimension and Tech skills.
  • Albion Cavalry Gun (Machine Gun): Increases Firearm ATK after hitting stunned enemies and inflicts stun on critical hits.

Best External Components for Ajax in The First Descendant


For external components, prioritize the following stats to enhance Ajax’s survivability and effectiveness:

  • Max Shields
  • Max HP
  • HP Recovery
  • DEF

Ajax Story in The First Descendant

Ajax was a distinguished Descendant who left active duty to become a professor at the Albion Military Academy. However, his retirement was short-lived when he received an urgent request for assistance from his former comrade, Aisha. Determined to help, Ajax donned the experimental Raley MK.5 Void Energy Battlesuit and ventured into the Void to find Aisha.

Despite the challenges, Ajax’s mission to find Aisha was successful, though it came at a cost. The suit malfunctioned, absorbing Void Energy and causing Ajax to collapse. Rescued by Aisha, Ajax returned to the Descendant Corps, only to find that ten years had passed in the real world. Refusing to stay retired, Ajax tore up his return-to-teaching papers and declared his intent to continue protecting his teammates, fulfilling his mission as a Descendant.

Ajax is an invaluable tank-class character in The First Descendant, offering unparalleled protection and crowd control. By mastering his skills and effectively managing Void Energy, players can maximize Ajax’s potential and ensure their team’s success in even the most challenging battles. Whether you choose him as your starting character or unlock him later, Ajax is a powerful asset to any team.