Drafted with AI from our own data; passed automated quality checks and spot-checked by the editor
About the Game
ONE PIECE: PIRATE WARRIORS 4 is high-speed action where you crush massive armies alongside Luffy and the Straw Hats.
ONE PIECE: PIRATE WARRIORS 4 is a Musou-style action game, the kind where you wade into enormous enemy crowds and keep the combos rolling. Developed by Koei Tecmo and published by BANDAI NAMCO Entertainment, it sits firmly in the action genre and takes its cues from the anime's most famous scenes. The core loop is easy to describe: string together combo attacks, unleash powerful finishers, and clear the battlefield one wave at a time.
The setting follows Luffy and the Straw Hat crew through a run of fan-favorite chapters, including Alabasta, Enies Lobby, Marineford, Dressrosa and Whole Cake Island. The store description also highlights an original Wano Country story arc built specially for this game, which gives the adventure a grand, epic finale. Each character brings their own special moves, so the battles feel different depending on who you pick.
What stands out most is the aerial combat system, which lets you launch enemies high into the sky and keep the attack going up there. The battlefields are destructible, so buildings and objects can be smashed apart and the terrain reshaped as the fight unfolds. Characters can also transform mid-battle, with Luffy's Gear 4 offered as a dramatic example. Each character can equip up to four special abilities and level them up to shape a personal fighting style.
Multiplayer covers local and online co-op, so you can team up with friends to take on the big battles together. Overall, the pitch is aimed at long-time fans who want spectacle, as well as action players looking for a more dynamic take on the genre.
Feature Highlights
- Aerial combat lets you launch enemies high into the sky and keep the attack going up there.
- Destructible battlefields allow you to smash buildings and objects and reshape the terrain during fights.
- Each character can equip up to four special abilities and raise their level to craft a personal fighting style.
- Luffy can transform mid-battle into his Gear 4 form to swing the tide of a fight.
- Local and online co-op lets you team up with friends to tackle large-scale battles together.
- Steam Achievements, Steam Cloud saves, and Remote Play on phone, tablet and TV are all supported.
Who It Is (and Is Not) For
Recommended For
If you love ONE PIECE or enjoy the Musou formula of clearing huge crowds with flashy combos, this game is built for you. The recognizable arcs and cinematic finishers let you relive famous moments while playing as your favorite crew member. It is also a good pick for sharing big battles with friends in co-op.
Not Recommended For
If you prefer slow, tactical, or turn-based combat, this is the wrong fit, since the focus is fast crowd-clearing action. Players who want a deep, story-driven RPG experience beyond the anime-based arcs may find it less satisfying.
What the Steam Reviews Say
Steam players rate ONE PIECE: PIRATE WARRIORS 4 as Very Positive, which is 極度好評 on the Taiwan store. Roughly 91% of reviews are positive, and the total runs to tens of thousands of reviews.
A high positive percentage backed by a large number of reviews is a fairly strong signal that most players are satisfied, because the percentage carries more weight when the sample is big. Still, a good overall score does not guarantee the game matches your taste, so it is worth reading recent reviews on the store page before you buy.
Price History & Historical Low
We started recording this game's Taiwan-store price on 2026-07-10 and have 33 day(s) of data so far.
Latest recorded price: NT$238 (regular NT$1,190)
A price chart appears here once we have recorded at least a week of prices with some variation.
These are Taiwan Steam store prices in NT$. The game is currently NT$ 238, down 80% from its regular price of NT$ 1190. That current price is also the lowest we have recorded so far, and it was already the price on July 10, 2026, the first day we logged it.
Our price record is still short, so this verdict is tentative. The game is marked as often discounted in our records, but the highest price we have logged is also NT$ 238, so we have not yet seen it sit at a higher price. We have no free-to-keep record for it, so for now it is a paid-only offer.
With an 80% discount and the current price sitting at our recorded low, now looks like a reasonable time to buy if you already want the game. If you are unsure, adding it to your wishlist and waiting for a sale notification is the safer route, although the price could also hold where it is.
Analysis written 10/27/2026 from our recorded prices; the chart above is live. Taiwan-region Steam prices.
How to Buy
- Sign in to your Steam account on the Steam website or the desktop client.
- Open the ONE PIECE: PIRATE WARRIORS 4 store page and check the current NT$ 238 price.
- Click Add to Cart and complete the purchase if you are ready to play now.
- If you would rather wait, click Add to Wishlist instead.
- Turn on wishlist sale notifications in Steam so you hear about future price changes.
- Check back here for the price trend before you decide.
Things to Know
Traditional Chinese is among the supported languages, along with English and Simplified Chinese, so Traditional Chinese readers can play with on-screen text in their language. Prices on this page are Taiwan-region Steam store prices in NT$ and may differ in other regions or on other storefronts. Free and discount promotions can end at any time, so check the official Steam page before you buy.
