Demon Progression Guide - Project Slayers 2 Wiki

Overview

Demon progression in Project Slayers 2 starts long before you own an art. You build negative reputation, meet Muzan after dark, collect nine Spider Lilies, deliver the doctor and drink his blood. Only then does the demon track open and replace the kit you were using.

After the transformation the game hands you two separate ladders: character level, capped at 255, and weapon or art mastery that levels independently. The Blood Demon Arts page covers the kits themselves, while this guide follows the route from your first night to the endgame.

From Reputation to Muzan

The reputation grind is the real gate. You need minus forty reputation before Muzan's invitation appears, and the meeting happens at night. Most players farm the early quest chains rather than hunting random mobs, because reputation and XP arrive together that way.

Nine Spider Lilies and the doctor delivery come after the invitation, and both send you across the map. Do the run with a clear inventory and a plan for daylight, since the transformation makes sunlight lethal the moment it lands. A map pass saves a wasted evening.

What Changes After the Transformation

The swap is total. You keep your character level and your Wen, but your combat kit, your mobility options and your upgrade path all change at once. Plan a short adjustment period, because a fresh demon in the thirties is weaker than the Slayer it replaced.

Leveling a Demon to 255

Demon leveling is quest-driven, not repeat-kill driven. The efficient route moves from Krue and Tom through Chaka and Wagwan, into Final Selection, then on to the higher-level quest givers and Iceveil Valley. The same leveling guide applies to both paths.

Final Selection is the milestone that lands around level 58 and ends with the Hand Demon. Past that point the map opens into boss farming, and the 255 cap is a long quest grind rather than a kill counter. Wen accumulates along the way for gear, Bandages and upgrades.

Demon Progression Tracks

Two ladders run at once, and both matter. Character level raises your stats and pays out skill points, while weapon mastery unlocks the moves that make a kit feel complete. Maxing level 255 does not finish your moveset, so keep using the weapon you plan to main.

Common Progression Mistakes

The most common mistake is turning demon too early on a main slot. A low-level demon loses its Slayer kit and gains a lethal sunlight weakness without the stats to compensate, so many players level first and convert later. Do the maths on your own route.

The second is ignoring mastery while chasing levels. If you rush character level with a weapon you never practice, you arrive at endgame with an incomplete moveset. Read the mastery guide alongside any demon plan, and keep Wen for the upgrades you actually need.

• Turning demon before you can survive the daylight rules
• Rushing character level without weapon mastery
• Skipping the Spider Lily and doctor steps
• Ignoring Demon Progress bonuses
• Spending Wen on rerolls too early
• Farming mobs instead of stacking quests

Endgame Goals for a Demon Slot

At max level the goals shift to gear and arts. Nightfall weapons and boss drops replace quest rewards, and Demon Progress bonuses decide how hard your art hits. Route your sessions around bosses rather than open-world mobs, because the drop table is where the remaining power sits.

Bosses such as Muzan, Enmu and Akaza anchor the late route and drop the pieces that finish a build. Enmu sits beyond Mistfall Harbor behind a hidden entrance, while Akaza waits on the Windy Peak cliffs, so travel planning matters.

Finish by locking in a main art and a matching weapon, then spend Wen on upgrades rather than constant rerolls. Compare your options on the demon builds page before the last stretch, and keep a Slayer slot if you want to see both sides of the game.