- Slayer 2 demon weapons center on the Nichirin Blade family — katanas and specialty variants tied to Breathing Styles.
- Weapon–style pairing matters: most Breathing Styles perform best with the Standard Katana, while Insect Breathing needs a Stinger Katana.
- Demons use Blood Demon Arts instead of weapons, so this guide focuses on the Slayer (human) arsenal.
- Upgrades come from bosses and dungeons, which drop currency, moves, and late-game gear.
- Stamina management is weapon-critical: exhausted Slayers cannot block, dash, or use skills.
Slayer 2 Demon Weapons Overview
In Project Slayers 2, the human faction fights demons with Nichirin Blades — sunlight-imbued katanas capable of killing demons permanently. Your weapon choice is not purely cosmetic: certain Breathing Styles depend on specialty blades, and weapon quality determines how well your combos, blocks, and skill slots perform in both PvE farming and PvP duels.
Demon players bypass weapons entirely, drawing power from Blood Demon Arts such as String, Arrow, Shockwave, and Temari Ball. For Slayers, however, the blade is the core of the build.
Standard Katana
- Default Slayer weapon
- Works with most Breathing Styles
- Balanced damage and speed
- Upgradable via boss drops
Stinger Katana
- Required for Insect Breathing
- Applies poison damage over time
- Specially treated blade
- Unique playstyle, weaker in raw PvP
Boss & Dungeon Gear
- Dropped by world bosses and dungeons
- Late-game damage upgrades
- Cosmetic weapon skins from events
- Best-in-slot for endgame builds
Demons cannot be killed by ordinary weapons in lore or gameplay — only Nichirin Blades and sunlight-based attacks finish them off. If you plan to fight world bosses like the Muzan encounter, upgrade your blade before engaging.
Weapon & Breathing Style Pairing Table
Each Breathing Style has a natural weapon fit. Pairing correctly unlocks the style's full moveset; pairing incorrectly can lock skills behind unusable conditions.
| Breathing Style | Best Weapon | Key Moves | PvP / PvE Notes |
|---|---|---|---|
| Water | Standard Katana | Water Surface Slash, Water Wheel, Constant Flux | Beginner-friendly, reliable finishers |
| Thunder | Standard Katana | Thunderclap and Flash, Sixfold, Thunder Swarm | S-Tier PvP, burst dash combos |
| Wind | Standard Katana | Dust Whirlwind Cutter, Idaten Typhoon | Best AoE farming for mob groups |
| Mist | Standard Katana | Eight-Layered Mist, Obscuring Clouds | Repositioning tech, tricky to counter |
| Insect | Stinger Katana | Butterfly Dance: Caprice, Dance of the Bee Sting | Poison DoT, slower kill speed |
If you plan to reroll into Insect Breathing later, farm the currency for the Stinger Katana before switching — trainers will not complete your unlock quest without the properly treated blade.
How to Get and Upgrade Your Weapon
Start with the Standard Katana
New Slayers begin with a basic blade near the Starting Village (Kiribating). Complete the beginner quest NPCs there for early XP and starter currency to fund your first upgrades.
Unlock Your Breathing Style
Visit your chosen style's trainer — Water, Thunder, Wind, Mist, or Insect — reach the required level, complete the trainer questline, and pay the unlock fee in Wen.
Farm Mid-Level Zones
Move to Zapiwara Mountain once you clear starter enemies comfortably. Mid-tier demon bosses there drop move unlocks and mid-game gear.
Clear World Bosses for Upgrades
High-level bosses in the Demon Territory and Swamp zones drop rare moves, high currency payouts, and late-game weapon upgrades. Bring a party for first clears.
Run Timed Dungeons
Dungeon entrances marked on the map host end-bosses that drop exclusive cosmetics, moves, and large currency rewards — the fastest path to a finished build.
Always accept a quest before farming any zone. Quest rewards stack on top of kill XP, roughly doubling your progression rate through the early and mid game.
Weapon Combat Mechanics & Controls
Your blade is only as good as your fundamentals. Project Slayers 2's combat rewards blocking, dashing, and stamina discipline.
| Action | PC Input | Notes |
|---|---|---|
| Basic sword combo | M1 (Left Click) | Chains into breathing moves |
| Block | F | Reduces incoming damage; fails when stamina is empty |
| Dash | Q | Core mobility for PvP and boss dodges |
| Sprint | Ctrl | Map traversal |
| Breathe (regen) | G | Restores breathing bar in safe areas |
| Skills | 1–4 number keys | Assign moves to slots in the menu |
Never engage a boss under-leveled with an un-upgraded weapon. Exhausted players cannot block or dash — a stamina bar hitting zero mid-fight is the most common cause of early deaths against elite demons.
Slayer Weapons vs Demon Blood Arts
| Factor | Slayer Weapons | Demon Blood Arts |
|---|---|---|
| Power source | Nichirin Blade + Breathing Style | Blood Demon Art from demon NPCs |
| Early game | Slower start, quest-gated | Strong early power spikes |
| Late game | Scales well with mastery and upgrades | Plateaus sooner without clan support |
| Weakness | Stamina and breathing management | Sunlight burn, hunger mechanics |
| Best S-Tier pick | Thunder Breathing katana build | String BDA |
Commit to one path early. Switching from Slayer to Demon (or rerolling styles) requires significant investment in spins and currency, so test styles on community tier lists before you lock in.
Weapon Progression Checklist
Slayer Weapon Milestones:
- Complete all Starting Village quests with the Standard Katana
- Unlock your first Breathing Style from a trainer
- Obtain the Stinger Katana if pursuing Insect Breathing
- Clear your first world boss for a weapon upgrade drop
- Complete a timed dungeon for exclusive weapon cosmetics
FAQ
Q: Do Slayer 2 demon weapons include anything besides katanas?
The core Slayer arsenal in Project Slayers 2 is Nichirin Blade-based, primarily the Standard Katana and the specialty Stinger Katana needed for Insect Breathing. Additional weapon variants and skins come from boss drops, dungeons, and event rewards.
Q: Can demons use Slayer 2 demon weapons?
No. Demons rely on Blood Demon Arts — String, Arrow, Shockwave, and Temari Ball — obtained from Muzan and demon trainer NPCs. Weapon-based combat is exclusive to the human Slayer path.
Q: Which weapon pairing is best for PvP?
Thunder Breathing with the Standard Katana is widely considered the strongest PvP build thanks to Thunderclap and Flash dash cancels and fast burst combos. Mist Breathing is a solid alternative for players who favor repositioning.
Q: How do I upgrade my weapon in Slayer 2?
Weapon upgrades and gear come from world bosses in zones like Zapiwara Mountain and the Demon Territory, plus timed dungeon end-bosses. Farming quests alongside boss kills provides the currency needed for trainer unlocks and upgrades.