The Game Census
ONE PIECE: PIRATE WARRIORS 4 cover art

ONE PIECE: PIRATE WARRIORS 4

Koei Tecmo · BANDAI NAMCO Entertainment · 2023-09-14

SteamPlayStation StoreAmazonMicrosoft Store

Action

Franchise: One Piece · Modes: Single player, Multiplayer, Co-operative, Split screen

Releases: Mar 27, 2020 (Nintendo Switch), Mar 26, 2020 (PC (Microsoft Windows)), Apr 28, 2020 (PlayStation 4), Mar 27, 2020 (Xbox One), Nov 21, 2025 (PlayStation 5), Nov 21, 2025 (Xbox Series X|S)

ONE PIECE: PIRATE WARRIORS 4 is the latest evolution of PIRATE WARRIORS action! Based on the concept of "experiencing a real ONE PIECE battlefield," buildings will come crashing down during the action and attacks will throw up smoke and dust, placing you in the thick of the ONE PIECE world!

136
playing now
92%
positive of 22k reviews
Very Positive
steam rating
1,000,000–2,000,000
owners (SteamSpy est.)
76/100
critic score (8 outlets, IGDB)
83/100
IGDB user rating (29 ratings)
25h
to beat · rushed 15h · completionist 50h
gold
deck/linux tier (ProtonDB)
$39.99
steam price (US)

136 players in-game as of 2026-08-30 01:00 UTC (census sample)

One Piece: Pirate Warriors 4 is a 2020 action video game developed by Koei Tecmo's Omega Force and published by Bandai Namco Entertainment. It was released for the Nintendo Switch, PlayStation 4, Windows, and Xbox One on March 27, 2020. It is the fourth installment in the Pirate Warriors sub-series, based on the One Piece franchise and Koei Tecmo's Dynasty Warriors series. It was released on March 27, 2020, with ports for Nintendo Switch 2, PlayStation 5, and Xbox Series X/S released on November 21, 2025.

Health check

Healthy
  • · 136 players in-game at the last census sample.
  • · 922 reviews in the last 8 weeks (~115/week).
  • · Review velocity down 3% vs the prior 8 weeks.
  • · Top 7% of 10,791 Action games in the census by review count.

Health tier since 2026-08-29

Estimated sales: 438k–985k copies

Review-multiple estimate from 21,891 total reviews — how this is computed.

Current store prices

GameBillet$7.17-82%
Humble Store$7.99-80%
WinGameStore$7.99-80%
lowest across shops (ITAD)$33.89-15%
Microsoft Store$39.99

Deal snapshots via CheapShark, refreshed daily.

All-time low: $5.10 at GreenManGaming (2023-10-12)via IsThereAnyDeal

12-month high $39.99 · on sale 97 of 122 observed days · $34.89 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
1.1k1.1k20202026Week of 2020-03-01: 1,140 positiveWeek of 2020-03-01: 154 negativeWeek of 2020-04-01: 844 positiveWeek of 2020-04-01: 89 negativeWeek of 2020-05-01: 206 positiveWeek of 2020-05-01: 16 negativeWeek of 2020-06-01: 199 positiveWeek of 2020-06-01: 20 negativeWeek of 2020-07-01: 244 positiveWeek of 2020-07-01: 23 negativeWeek of 2020-08-01: 105 positiveWeek of 2020-08-01: 11 negativeWeek of 2020-09-01: 164 positiveWeek of 2020-09-01: 15 negativeWeek of 2020-10-01: 109 positiveWeek of 2020-10-01: 13 negativeWeek of 2020-11-01: 313 positiveWeek of 2020-11-01: 19 negativeWeek of 2020-12-01: 181 positiveWeek of 2020-12-01: 15 negativeWeek of 2021-01-01: 169 positiveWeek of 2021-01-01: 8 negativeWeek of 2021-02-01: 197 positiveWeek of 2021-02-01: 23 negativeWeek of 2021-03-01: 100 positiveWeek of 2021-03-01: 4 negativeWeek of 2021-04-01: 101 positiveWeek of 2021-04-01: 6 negativeWeek of 2021-05-01: 523 positiveWeek of 2021-05-01: 47 negativeWeek of 2021-06-01: 501 positiveWeek of 2021-06-01: 50 negativeWeek of 2021-07-01: 452 positiveWeek of 2021-07-01: 26 negativeWeek of 2021-08-01: 149 positiveWeek of 2021-08-01: 8 negativeWeek of 2021-09-01: 109 positiveWeek of 2021-09-01: 5 negativeWeek of 2021-10-01: 217 positiveWeek of 2021-10-01: 14 negativeWeek of 2021-11-01: 386 positiveWeek of 2021-11-01: 41 negativeWeek of 2021-12-01: 312 positiveWeek of 2021-12-01: 16 negativeWeek of 2022-01-01: 213 positiveWeek of 2022-01-01: 14 negativeWeek of 2022-02-01: 141 positiveWeek of 2022-02-01: 5 negativeWeek of 2022-03-01: 113 positiveWeek of 2022-03-01: 9 negativeWeek of 2022-04-01: 108 positiveWeek of 2022-04-01: 10 negativeWeek of 2022-05-01: 302 positiveWeek of 2022-05-01: 25 negativeWeek of 2022-06-01: 201 positiveWeek of 2022-06-01: 11 negativeWeek of 2022-07-01: 262 positiveWeek of 2022-07-01: 21 negativeWeek of 2022-08-01: 193 positiveWeek of 2022-08-01: 9 negativeWeek of 2022-09-01: 139 positiveWeek of 2022-09-01: 13 negativeWeek of 2022-10-01: 138 positiveWeek of 2022-10-01: 10 negativeWeek of 2022-11-01: 390 positiveWeek of 2022-11-01: 44 negativeWeek of 2022-12-01: 354 positiveWeek of 2022-12-01: 23 negativeWeek of 2023-01-01: 241 positiveWeek of 2023-01-01: 15 negativeWeek of 2023-02-01: 99 positiveWeek of 2023-02-01: 10 negativeWeek of 2023-03-01: 232 positiveWeek of 2023-03-01: 25 negativeWeek of 2023-04-01: 119 positiveWeek of 2023-04-01: 8 negativeWeek of 2023-05-01: 81 positiveWeek of 2023-05-01: 8 negativeWeek of 2023-06-01: 65 positiveWeek of 2023-06-01: 7 negativeWeek of 2023-07-01: 386 positiveWeek of 2023-07-01: 37 negativeWeek of 2023-08-01: 213 positiveWeek of 2023-08-01: 19 negativeWeek of 2023-09-01: 895 positiveWeek of 2023-09-01: 79 negativeWeek of 2023-10-01: 212 positiveWeek of 2023-10-01: 29 negativeWeek of 2023-11-01: 217 positiveWeek of 2023-11-01: 23 negativeWeek of 2023-12-01: 323 positiveWeek of 2023-12-01: 34 negativeWeek of 2024-01-01: 306 positiveWeek of 2024-01-01: 28 negativeWeek of 2024-02-01: 207 positiveWeek of 2024-02-01: 29 negativeWeek of 2024-03-01: 258 positiveWeek of 2024-03-01: 24 negativeWeek of 2024-04-01: 170 positiveWeek of 2024-04-01: 10 negativeWeek of 2024-05-01: 147 positiveWeek of 2024-05-01: 11 negativeWeek of 2024-06-01: 141 positiveWeek of 2024-06-01: 10 negativeWeek of 2024-07-01: 170 positiveWeek of 2024-07-01: 23 negativeWeek of 2024-08-01: 221 positiveWeek of 2024-08-01: 30 negativeWeek of 2024-09-01: 141 positiveWeek of 2024-09-01: 8 negativeWeek of 2024-10-01: 128 positiveWeek of 2024-10-01: 59 negativeWeek of 2024-11-01: 87 positiveWeek of 2024-11-01: 11 negativeWeek of 2024-12-01: 191 positiveWeek of 2024-12-01: 17 negativeWeek of 2025-01-01: 130 positiveWeek of 2025-01-01: 14 negativeWeek of 2025-02-01: 117 positiveWeek of 2025-02-01: 9 negativeWeek of 2025-03-01: 118 positiveWeek of 2025-03-01: 14 negativeWeek of 2025-04-01: 85 positiveWeek of 2025-04-01: 10 negativeWeek of 2025-05-01: 107 positiveWeek of 2025-05-01: 7 negativeWeek of 2025-06-01: 73 positiveWeek of 2025-06-01: 5 negativeWeek of 2025-07-01: 110 positiveWeek of 2025-07-01: 14 negativeWeek of 2025-08-01: 145 positiveWeek of 2025-08-01: 14 negativeWeek of 2025-09-01: 93 positiveWeek of 2025-09-01: 10 negativeWeek of 2025-10-01: 144 positiveWeek of 2025-10-01: 11 negativeWeek of 2025-11-01: 108 positiveWeek of 2025-11-01: 12 negativeWeek of 2025-12-01: 84 positiveWeek of 2025-12-01: 13 negativeWeek of 2026-01-01: 74 positiveWeek of 2026-01-01: 7 negativeWeek of 2026-02-01: 83 positiveWeek of 2026-02-01: 6 negativeWeek of 2026-03-01: 137 positiveWeek of 2026-03-01: 12 negativeWeek of 2026-04-01: 131 positiveWeek of 2026-04-01: 12 negativeWeek of 2026-05-01: 108 positiveWeek of 2026-05-01: 12 negativeWeek of 2026-06-01: 80 positiveWeek of 2026-06-01: 6 negativeWeek of 2026-07-01: 145 positiveWeek of 2026-07-01: 12 negativeWeek of 2026-08-01: 50 positiveWeek of 2026-08-01: 7 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

3421062026-08-06 21:00 — 136 players2026-08-07 05:00 — 161 players2026-08-07 13:00 — 279 players2026-08-07 21:00 — 134 players2026-08-08 05:00 — 190 players2026-08-08 13:00 — 324 players2026-08-08 21:00 — 163 players2026-08-09 05:00 — 261 players2026-08-09 13:00 — 342 players2026-08-09 21:00 — 156 players2026-08-10 05:00 — 126 players2026-08-10 14:00 — 265 players2026-08-10 22:00 — 118 players2026-08-11 06:00 — 130 players2026-08-11 14:00 — 281 players2026-08-12 21:00 — 126 players2026-08-14 05:00 — 132 players2026-08-15 13:00 — 282 players2026-08-16 21:00 — 163 players2026-08-18 04:00 — 124 players2026-08-19 12:00 — 185 players2026-08-20 19:00 — 130 players2026-08-22 03:00 — 161 players2026-08-23 10:00 — 209 players2026-08-24 18:00 — 171 players2026-08-26 02:00 — 112 players2026-08-27 10:00 — 144 players2026-08-28 17:00 — 168 players2026-08-30 01:00 — 136 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$59.99$5.392020-01-212026-08-292020-01-21 — best price $44.212020-05-08 — best price $50.392020-09-07 — best price $44.972020-11-28 — best price $35.992021-03-01 — best price $46.692021-05-10 — best price $19.992021-08-12 — best price $17.992021-10-15 — best price $15.842021-12-17 — best price $14.492022-03-22 — best price $13.642022-05-30 — best price $41.992022-08-02 — best price $59.992022-09-26 — best price $7.672022-11-29 — best price $50.392023-02-18 — best price $59.992023-04-28 — best price $7.482023-07-06 — best price $8.092023-09-01 — best price $41.992023-10-04 — best price $33.992023-12-17 — best price $13.052024-02-22 — best price $59.992024-05-01 — best price $8.592024-07-03 — best price $8.192024-09-04 — best price $59.992024-11-14 — best price $9.992025-01-16 — best price $33.892025-04-14 — best price $8.792025-06-30 — best price $10.002025-09-29 — best price $9.992025-12-18 — best price $9.992026-03-09 — best price $8.992026-05-22 — best price $6.952026-07-22 — best price $33.992026-08-29 — best price $39.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

40
achievements tracked
92.3%
earned "I'm Getting Fired Up...!"
44.9%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerMulti-playerPvPOnline PvPSteam AchievementsIn-App PurchasesPartial Controller SupportSteam CloudRemote Play on PhoneRemote Play on Tablet18 DLC

12 supported languages: English, French, Italian, German, Spanish - Spain, Korean, Polish, Portuguese - Brazil, Russian, Thai, Traditional Chinese, Simplified Chinese

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
PS4 (PlayStation)25,66740%40
Xbox Series, Xbox One (Xbox)20,9808%40
Steam (Steam)8,53321%40
PS5 (PlayStation)4,08850%40
Windows (Xbox)2,51210%40
Switch (Nintendo)3030%0
Switch (Nintendo)2090%0

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

PvPRPGAnimeCo-opMusouActionArcadePiratesFightingAdventure

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

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Similarity via IGDB.

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