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The swordsman stands before a horned, masked giant erupting in a column of fire amid burning stakes and smoke.
Image: S-GAME / Steam store page

Which Phantom Blade Zero bosses stall the most Steam players?

On our Steam snapshot of 2026-10-30 07:58 UTC, these three named fights drop the largest share of the remaining player base among fights with enough players to rank. Drop-off is 1 minus this fight's unlock rate divided by the previous required named fight in region order. Right after launch that still mixes difficulty with how far people have played.

Boss names in the text below are hidden. Tap one to reveal it.
  1. 1
    Spoiler · show name Bai Chilian, Lady of the Twin Serpents
    65.9% drop-off · 7.2% beat
  2. 2
    Spoiler · show name Hua Qianxiao, the Sword Fanatic
    50.5% drop-off · 21.1% beat
  3. 3
    Spoiler · show name Hua, the Bride
    46.8% drop-off · 34.5% beat

Ranking by remaining-player drop-off

5 of 17 Steam-named boss fights currently meet the ranking threshold on the 2026-10-30 07:58 UTC snapshot: previous required named fight at least 10% of players, this fight at least 1%. Beat rate is that achievement's global unlock percentage. Trend is this snapshot minus our earliest snapshot (2026-10-29 02:08 UTC), in percentage points. Names are spoilers. Confirmed · Steam

Rankable Steam-named bosses · drop-off
Rank Boss Region Beat rate Drop-off Trend Required
1
Spoiler · show name Bai Chilian, Lady of the Twin Serpents
Crimson Forest (end) 7.2% 65.9% -9.2 pp Required
2
Spoiler · show name Hua Qianxiao, the Sword Fanatic
Crimson Forest (start) 21.1% 50.5% +2.2 pp Required
3
Spoiler · show name Hua, the Bride
Weeping Creek Valley (side path near the Valley Sha-Chi Tower) 34.5% 46.8% +13.8 pp Optional
4
Spoiler · show name the Hunt, Hunter of the Order
Weeping Creek Valley (end) 42.6% 34.3% +19.1 pp Required
5
Spoiler · show name Axemaster Peng Meng
Weeping Creek Valley (midway) 64.8% 28.1% vs The Heart's Journey +37.1 pp Required

Too early to rank

These fights have a previous required named-fight beat rate below 10%, or their own beat rate below 1%. Too few players have reached them, so the numbers reflect progress, not difficulty. They enter the ranking automatically once later snapshots cross those thresholds.

Too early to rank · Steam-named bosses
# Boss Region Beat rate Drop-off Trend Required
4
Spoiler · show name the Puppet Scavenger
Weeping Creek Valley (Crimson Manor side area) 0.0% — -11.2 pp Optional
7
Spoiler · show name Mu Xiaokui, the Young Mistress of the Order
Village of Lu (end) 1.5% — -15.3 pp Required
8
Spoiler · show name the Four Great Puppets: Yuzan, Yubi, Yuding, and Yucong
Four fights: Village of Lu, Mandate Encampment, Mirage Estate, Crimson Forest 0.0% — -11.9 pp Unconfirmed
9
Spoiler · show name Flame, the Lion Dance Grandmaster
Pangzhen (later town, Jingyang Hall) 0.1% — -13.2 pp Required
10
Spoiler · show name the three Shadow Wardens: Cavalrybane, Soulclaimer, and Heartpiercer
Pangzhen, Pangzhen/Meigu Lake entrance, Meigu Lake 0.0% — -14.0 pp Required
11
Spoiler · show name the Chief Disciple of the Seven-Stars
Mandate Encampment (midway) 0.0% — -15.0 pp Optional
12
Spoiler · show name the Blizzard Blademaster
Meigu Lake, Phantom Illusionist Ruins (end) 0.0% — -10.1 pp Optional
13
Spoiler · show name Blackwater Leader You Loong, Zither Maiden Yan Qiansui, and the One-Eyed Archer
Meigu Lake (all three); the You Loong fight here is his second, as the Frenzied Blackwater Crew Leader at Blackwater Crew Dock 0.0% — -8.7 pp Optional
14
Spoiler · show name Zhu Yuan and Commander Bi Feng
Meigu Lake (Zhu Yuan) and Mountain of Imprisonment (Bi Feng) 0.0% — -11.5 pp Optional
15
Spoiler · show name Huangxing, the Kunlun Renegade
Mountain of Imprisonment (end) 0.0% — -11.2 pp Optional
16
Spoiler · show name Lei Dang, the Tiger Cannon
Pangzhen, Mirage Estate (end) 0.0% — -12.9 pp Required
17
Spoiler · show name the Saw and the Crusher
Mount Soulrend (midway) 0.0% — -13.6 pp Required

Drop-off funnel

Same 17 fights in region order, left to right as a share of Steam players who have the achievement. Vermilion bars are required; gold bars are optional. Bars are numbered to match the story-order index, not the rank. Names stay in the table so this chart does not spoil them.

Steam unlock rate for each named boss, in region order Horizontal bars. Length is the share of Steam players who unlocked that boss achievement. Gold bars are optional fights; vermilion bars are required. Names are in the table above to avoid spoilers. 164.8%234.5%342.6%40.0%521.1%67.2%71.5%80.0%90.1%100.0%110.0%120.0%130.0%140.0%150.0%160.0%170.0%

Gold = optional · vermilion = required · bar length = beat rate

How we calculate this / Our data

The percentages are Steam's global achievement statistics for Phantom Blade Zero. We fetch them ourselves on a schedule and store each snapshot. The live table and a CSV of the same numbers are on the trophies page (unlock-rates.csv). This page uses 4 snapshots, from 2026-10-29 02:08 UTC to 2026-10-30 07:58 UTC.

Drop-off for a fight is 1 − (this fight's beat rate ÷ the previous required Steam-named fight in region order). Optional fights still rank against that required baseline, but they do not set it for the next fight. When there is no earlier required fight, we compare with The Heart's Journey (ACH_001), the opening achievement for players who started the game, currently 90.1%. If that ratio would be negative, we show 0.0% and mark the row optional / order uncertain.

A fight enters the ranking only when the previous required named fight is at least 10% of players and this fight is at least 1%. The strongest difficulty signal is a fight that many players beat the previous one, and clearly fewer beat this one. Below those thresholds the number is still mostly “not there yet”; later snapshots move more fights into the ranking. Steam rounds to one decimal, so 0.0% means fewer than about 1 in 2,000 players so far.

Questions

Which boss is the hardest in Phantom Blade Zero?

We do not rank by feel. On our 2026-10-30 07:58 UTC snapshot, among fights with the previous required named fight at 10% or more of players and this fight at 1% or more, the largest remaining-player drop-off is rank 1 in the table. Fights below those thresholds sit in Too early to rank.

Confirmed · Steam Community
What percentage of players beat the final boss?

Steam has no achievement that names the reported final boss, so this ranking cannot give that figure. The last required Steam-named fight in our region order currently sits at 0.0% of players.

Reported · PowerPyx
How often is this updated?

We capture Steam's global achievement percentages ourselves and keep each snapshot. This page uses 4 snapshots from 2026-10-29 02:08 UTC to 2026-10-30 07:58 UTC. The same numbers appear on the trophies page and in the CSV download.

Confirmed · Steam Community
Why can a later boss show a 0% drop-off?

If more players unlocked this fight than the previous required named fight in region order, the drop is negative. We show 0.0% and mark it optional / order uncertain. Optional bosses and a region list that is not an exact fight order both cause this.

Confirmed · Steam

Sources and checks

Official and store pages

Press, reviews and data sites