The First Descendant Strategy Guide · Cosmo Strategy Guides

01 · The Combat Loop

Third-person shooter + Descendant abilities + looter progression.

Co-op shooting action Drop into missions solo or with up to 4 players. Combine Descendant abilities with firearms for varied combat. Missions span exploration, boss raids, and wave-based defense.
Pick a Descendant Choose one of 20+ Descendant characters. Each has unique active abilities, passive bonuses, and combat identity. Switch between Descendants between missions; level each independently.
Module system (build crafting) Equip Modules on Descendants to modify stats and abilities. Modules slot into the Module Socket grid; combinations define build identity.
Loot-driven progression Kill enemies; complete missions; collect Reactors, Components, and Modules. Better loot enables higher World Tier access and tougher content.
Vulgus enemies (the central threat) Mechanical/biological enemy faction. Multiple tiers from basic Vulgus to Colossi bosses. Each tier requires specific damage types and tactics.
Season-based content cycles Seasons run roughly 3 months. New Descendants, missions, bosses, and Modules per season. Currently Season 3 active.
Free-to-play with cosmetic monetization Nexon’s monetization is cosmetics-focused. Cosmetic Calibers (premium currency), skins, and limited-time bundles. Gameplay progression accessible to F2P players.

02 · Descendants by Role

Ultimate Descendants are upgraded versions of base Descendants.

Damage Dealers High-DPS specialists

Bunny (electric speed-runner)
Lepic (explosive damage specialist)
Sharen (stealth ambush)
Sigma (assassination focus)

Bring: Aggressive playstyle and willingness to engage at close-mid range.
Take: Primary team damage output. Strong in solo missions; team-fight DPS.

Bunny remains a foundational pick for any team. High mobility + reliable AoE damage.

Tank / Survivability Damage absorption specialists

Ajax (shield barrier specialist)
Kyle (electromagnetic field tank)
Ines (defensive aura)
Hailey (defensive ranged sniper)

Bring: Team-first mindset and willingness to draw aggression.
Take: Aggro management. Pull enemy attention; protect DPS Descendants.

Ajax’s shield wall is the strongest team-protection ability in the game.

Support / Utility Team enablement

Viessa (April 2026 buff; ice + freeze CC)
Yujin (healing class)
Enzo (January 2026 rework; ability resource enabler)
Esiemo (explosive area control)

Bring: Tactical mindset and willingness to enable teammates.
Take: Team buffs, debuffs, and CC. Strong in coordinated co-op.

Viessa received April 2026 rework with HP-based damage and extended ability duration. Now a top-tier pick.

Specialists Unique mechanics

Freyna (toxic damage + DoT)
Harris (firearm dealer specialty)
Blair (fire-based control)
Glory (resurrection-themed)

Bring: Patience for niche mechanics and willingness to master specific scenarios.
Take: Powerful in specific encounters; less universal than other Descendants.

Harris received April 2026 rework. Now identified as the dedicated firearm dealer; HP-based damage added to her kit.

Ultimate Descendants Upgraded base Descendants

Ultimate Bunny
Ultimate Lepic
Ultimate Ajax
Ultimate Viessa

Bring: Investment in upgrade materials and willingness to commit to a Descendant.
Take: Strongest version of each Descendant with enhanced stats and unique skills.

Ultimate Descendants are the endgame goal. Each requires significant grind to unlock and craft.

03 · The Module System

Build crafting through modular stats and abilities.

Module slots per Descendant Each Descendant has 10 Module slots organized in a grid. Place Modules in the grid; managing slot capacity is the build constraint.
Module categories Skill Modules (modify abilities), Stat Modules (raw stat increases), Special Modules (unique effects). Combine types for build identity.
Module ranks Modules level up. Higher ranks provide more powerful effects but cost more Module Capacity. Capacity-cost balance defines builds.
Capacity management Each Descendant has a Module Capacity limit. Total Module costs cannot exceed capacity. Balance high-impact Modules against capacity headroom.
Module Socket types Modules have socket-matching requirements. Modules with matching sockets cost less Capacity; non-matching cost more. Plan socket strategy.
Module crafting Combine multiple Modules to craft higher-tier versions. Long-term grind for top-tier Modules.
Focused Supervision module (Viessa April 2026) Recent example: Focused Supervision Module duration extended for easier Auto-Reload usage; Skill 4 now deals bonus damage proportional to HP and shield on firearm attacks.

04 · Weapons

Three weapon slots per Descendant.

Weapon Class	Examples	Style
Assault Rifles	High-rate-of-fire mid-range	Versatile workhorse weapons. Foundation of most builds.
Submachine Guns	Close-range high-fire-rate	Effective at point-blank; ammo-hungry.
Sniper Rifles	Long-range one-shot weapons	Slow fire rate; high damage; positioning-dependent.
Tactical Rifles	Burst-fire mid-range	Burst-damage profile; consistent kills at range.
Shotguns	Close-range area weapons	Devastating CQB; useless at range.
Beam Rifles	Sustained-fire energy weapons	Hold trigger for continuous damage; energy weapons.
Launchers	Rocket and grenade launchers	AoE damage; ideal for grouped enemy clusters.
Ultimate Weapons	Top-tier weapons with unique passive abilities	Endgame chase items. Build-defining when paired with the right Descendant.

05 · Missions & Story

Main story + side missions + endgame.

Main Story missions Linear campaign through the Vulgus war. Multiple regions and storylines; foundational progression and Descendant unlocks.
Encrypted Vault missions Rotating mini-dungeons. Specific Module rewards; weekly farming targets.
Special Operations High-difficulty endgame missions. Specific Module and component drops; coordinated co-op required.
Hard Mode missions Story missions with higher difficulty and rewards. Replay completed missions on Hard for better loot.
Colossi boss fights Massive boss raids. Each Colossi requires specific tactics and weapon types. The endgame challenge.
Onslaught Mode (April 2026 beta) Wave-based defense mode. Hold the line against Vulgus waves; reward scaling with wave count. New endgame mode.
Public mission events Open-world events that any player can join. Cooperative play with strangers; shared rewards.

06 · Colossi Boss Fights

The endgame raid encounters.

Multiple Colossi types Each Colossi has unique abilities, weak points, and required tactics. Mechanically different fights across the Colossi roster.
Weak point system Each Colossi has specific weak points. Damage at weak points scales significantly; mastering weak point targeting is the meta.
Phase transitions Colossi shift abilities at HP thresholds. Each phase introduces new attack patterns; learn timing and counter-positioning.
Coordinated team play Solo Colossi runs are difficult. Coordinated 4-player teams with mixed roles (Tank, DPS, Support) clear faster.
Reactor rewards Defeat Colossi for Reactor drops. Reactors are core equipment for Descendant builds; tier-based progression.
Master Climax mission Year 8 endgame raid (introduced with Onslaught beta). Hardest content; specific gear/build requirements.
Pre-fight preparation Stockpile consumables, optimize Module setup, coordinate team comp. Colossi reward preparation, not improvisation.

07 · Reactors & Components

The endgame gear pipeline.

Reactors (core equipment) Equip a Reactor on each Descendant. Provides skill power, conditional bonuses, and unique effects. Build-defining item.
Components (gear sets) Auxiliary Power, Sensor, Memory, Processor. Each Descendant equips one of each component type. Stats add up across component sets.
Reactor mod farming Specific Reactors drop from specific encounters. Identify the target Reactor; farm the source encounter; optimize for matching skill power.
Substat optimization Reactors and Components have main stats and substats. Substats roll randomly; chase optimal rolls for perfect builds.
Mountable substats Sub-stats provide passive bonuses. HP, Defense, Skill Power, Crit Rate, Crit Damage. Match sub-stats to Descendant build.
Arche Tuning (reworks) Skill modifier system. Adjusts how individual skills function; April 2026 brought significant Arche Tuning reworks.
Vault Reactor farming Encrypted Vault missions drop specific Reactor types. Repeated runs build comprehensive Reactor library.

08 · Seasons & Content Cycles

Roughly 3-month seasonal cycles.

Season 3 (current) Currently Season 3 active. April 2026 update brought Onslaught Mode beta, Viessa rework, Harris rework, weapon reworks, events.
Season progression Season tiers, exclusive cosmetics, season-specific missions. Battle Pass-style progression layer.
Season Battle Pass Free track grants basic rewards; premium track adds Caliber, cosmetics, and exclusive Descendant unlocks.
Limited-time events Seasonal events with unique rewards. Login events, skin contests, Companion App rewards.
Wipe cycles (no full wipe) Seasons don’t fully wipe progression. Character levels, Modules, and Reactors persist; new content layers on existing builds.
2026 Skin Contest event Currently active (May 22 launch). Players submit custom skin designs; community voting awards prizes. Cosmetic competition layer.
PEGI rating lowered May 21, 2026 PEGI rating updated from 18 to 16. Opens game to broader audience; gameplay content unchanged.

09 · Multiplayer & Co-op

Solo to 4-player squad.

Solo play All content is soloable but harder. AI teammates fill missing slots in some missions; solo content rewards skill mastery.
4-player squads Optimal team size. Coordinate Descendant roles; share Modules; communicate via voice. The intended experience.
Matchmaking Quick-match for missions. Matchmaking pairs players by mission tier. Random teammates may have varied skill levels.
Friends list and party system Add friends; form parties; play together. Persistent groups enable coordinated build crafting.
Cross-platform play PC + Xbox + PlayStation cross-play. Same servers; same matchmaking pool; same character progression.
Voice chat In-game voice for coordination. Optional but recommended for team coordination. PTT and voice activation supported.
Discord communities Active Nexon-affiliated and community Discords. Find squad mates; share build guides; coordinate boss runs.

10 · Audio & Settings

Third-person shooter; tune for combat clarity.

Headphones for combat audio Vulgus footsteps, ability cues, boss-fight indicators. Quality stereo headphones reveal directional threats.
Master volume around 50–60 percent TFD peaks loud during combat. Lower master volume preserves headroom for ambient cues.
Field of view 90 Standard for third-person shooters. Adjustable; some players prefer higher for awareness.
Mouse sensitivity tuning Mid-range for hybrid action/shooter. Lower than competitive arena shooters; higher than turn-based.
Performance tuning TFD is GPU-demanding at high settings. Reduce shadows and effects for stable framerate in chaotic combat.
HUD customization Adjust HUD elements: health, ability cooldowns, ammo. Reduce clutter for clean visuals.
Verify after every season patch Nexon ships major content updates each season. Five minutes of menu review per patch prevents surprises.

11 · Pro Tips

Compound habits across the long TFD arc.

Master one Descendant fully Build one Descendant to peak before expanding. Bunny, Lepic, or Ajax are forgiving entries. Mechanical depth on one beats spreading thin.
Optimize Module Capacity Capacity is the limiting factor for top-tier builds. Match Module sockets; rank Modules carefully; don’t overspend Capacity.
Watch theorycrafters YouTube creators post per-patch build guides. Two hours per week of high-rank footage saves weeks of misallocated resources.
Plan around Colossi for Reactors Each Colossi drops specific Reactors. Identify target Reactor; farm the matching Colossi systematically.
Use Onslaught Mode for endgame XP New Onslaught Mode (April 2026 beta) is one of the strongest XP and Module farms. Heavy farming target.
Co-op for harder content Solo soloable but slow. Co-op clears 2-3x faster; voice coordination amplifies effectiveness further.
Take advantage of events Skin contests, login events, special missions. Engage during event windows for exclusive cosmetics and rewards.