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ONE PIECE: PIRATE WARRIORS 4

ONE PIECE: PIRATE WARRIORS 4

Live

ActionMelee actionFighting

Platforms
Release:
2020
Developer:
Koei Tecmo, KOEI TECMO GAMES CO., LTD.
Scale:
Average concurrent players225
Player rating:
91.7% · 21.9K
Profile data as of:
August 29, 2026

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!

Official website

Screenshots

Images from the source page, in source order. Select an image to view it full size.

Videos

Videos from the game’s source page, in source order. Select one to open the original.

Overview

Franchise
  • One Piece (brand)
  • One Piece: Pirate Warriors (series)
Release date
  • Windows — 2020
  • PlayStation 4 — 2020
  • PlayStation 5 — 2025
  • Xbox One — 2020
  • Xbox Series X|S — 2025
  • Nintendo Switch — 2020
  • Nintendo Switch 2 — 2025
Developer
Publisher
Age rating
  • ESRB T — Teen, age 13+ · Steam Store
  • PEGI 12 — age 12+ · Steam Store
  • USK 12 — age 12+ · Steam Store
  • CERO B — age 12+ · IGDB mirror
  • ACB PG — Parental Guidance · Steam Store
  • GRAC 12+ — Ages 12+ · Steam Store
  • ClassInd 12 — Ages 12+ · Steam Store
Content warnings
Not specified by the storefront
Interaction modes
Single-playerMultiplayerOnline PvP
Session capacity
  • 4 online, 2 online co-op, 2 offline, 2 offline co-op · IGDB mirror
Access model
  • One-time purchase
Monetization
  • In-app purchases
Storefront price
  • $39.99Steam, US storefront
Store contents
  • 40 Achievements, 18 DLC · Steam Store, August 29, 2026
Languages
EnglishRussianGermanFrenchSpanishPortuguese, BrazilItalianPolishKoreanChinese, Simplified script

Classification

Genres
ActionMelee actionFighting
Evidence:
Setting and subject matter
Pirates
Camera
Third-person
Evidence:
Visual style
Anime
Combat system type
Melee combat, Fighting
Evidence:

Scale

Concurrent players · period average

225

August 18, 2026 — September 17, 2026

under 100over 1 million
Detailed value
225.02
Coverage
Steam
Origin
Published by source
Confidence
Medium — The site's calculation method is not published
Basis
Average concurrent Steam players over 30 days from Steam Charts: 225
Date observed
September 17, 2026
Source
Steam Charts

Concurrent players · period peak

614

August 18, 2026 — September 17, 2026

under 100over 1 million
Coverage
Steam
Origin
Published by source
Confidence
Medium — The site's calculation method is not published
Basis
Peak concurrent Steam players over 30 days from Steam Charts: 614
Date observed
September 17, 2026
Source
Steam Charts
Ratings
  • players91.7% · 21.9KSteam, US storefront · Steam reviews
  • players83.2%Global · IGDB mirror
  • critics76.4%Global · IGDB mirror
  • critics75%Steam, US storefront · Steam Store
Last update

Concurrent players

period average · April 2020 — August 2026 · Steam · published by source · Steam Charts

1,9200
April 2020August 2026
Change over period
−88%decrease from 1,530 (April 2020) to 181 (August 2026)
Gaps
No gaps in observed months
Observations
77

Mechanics

Key game systems from the Mechanics Catalog. Assessment axes are independent and are not combined into a single score. An unassessed mechanic is unknown, not absent.

  • Clan system

    Not assessed

    A persistent player organization created or recognized by the game itself, with a stable membership, a life beyond one session, a shared identity, functions, and goals.

  • Player economy

    Not assessed

    An in-game system where player decisions materially influence at least part of the production, supply, distribution, or price of in-game value.

  • Territory control

    Not assessed

    A system where players or organizations capture, hold, and use parts of the game world with lasting consequences.

  • Competitive PvP

    Not assessed

    Structured competition between players with rules and a measurable outcome, usually including skill-based matchmaking.

  • Live service and updates

    Not assessed

    A regular rhythm of meaningful updates, including seasons, patches, events, and a roadmap that supports a long product life.

  • Character progression

    Not assessed

    A system for long-term character or account development through levels, skills, equipment, and specializations.

RealmScanner is a research catalog for multiplayer games. Data comes from public sources; coverage and evidence appear beside each assessment.