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Zefyr: A Thief's Melody

Zefyr: A Thief's Melody

In a colorful archipelago, play as a young thief studying at the Guild. Investigate kidnappings, steer clear of roaming pirates or fight them. Sail the ocean on a cute turtle and climb every island. Cure sick animals, and find the truth during this feel-good journey. Made by a dreamer solo dev.

Released Jun 2, 2025 Developer Oneiric Worlds Platforms Windows AdventureExplorationOpen WorldAtmosphericMystery
View on Steam ↗ $19.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

96.1%positive440 reviews
Recommended · 7 found this helpful

“In my opinion, Zefyr is a good game, quite unique in its genre. It is primarily a platformer and exploration game, though it borrows gameplay elements found in action-adventure titles. I enjoyed the experience, but it's important to keep in mind the fact that it was developed by…”

— a player, Steam review · 15 hrs played
Recommended · 5 found this helpful

“Hats off to the creator on this one. Probably one of the closest things we have to an open world One Piece game without the One Piece. The world is largely a vast ocean filled with small islands, thieves, ninjas, pirates guardsmen, animals, spirit-gods and robots (eat your heart…”

— a player, Steam review · 11 hrs played
Recommended · 3 found this helpful

“Fun little game. Fun world to explore but the hand holdy nature of the quest structure doesnt let you explore in your own order much and it would have been nice if the exploration was more front and center.”

— a player, Steam review · 9 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

92all-time peak
0 25 50 2026 No data collected for this period 28 avg · Feb 2026

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

42achievements
18.0%median completion
7.5%rarest: Completionist
73.9% of players 58.2% of players 56.8% of players 50.7% of players 47.8% of players 44.4% of players 28.8% of players 27.6% of players 27.4% of players 26.7% of players 23.1% of players 22.6% of players 21.7% of players 21.1% of players 20.6% of players 20.3% of players 20.2% of players 20.0% of players 19.7% of players 19.7% of players 18.6% of players 18.0% of players 17.7% of players 17.7% of players 17.2% of players 17.1% of players 16.8% of players 16.6% of players 16.0% of players 15.5% of players 15.2% of players 14.9% of players 14.5% of players 12.6% of players 11.2% of players 11.0% of players 10.6% of players 10.0% of players 10.0% of players 9.4% of players 9.0% of players 7.5% of players 73.9% 0% most earned rarest
Almost everyone has
73.9%Nice Jump — Jump from 20 meters.
58.2%Bo Master — Get the Bo.
56.8%Smooth Move — Knock out an enemy in a single stroke.
Rarest badges of honor
7.5%Completionist — Finish the game at 100%.
9.0%I Feel Alive — Get all the chocolate.
9.4%Guardian Master — Cure all Guardians.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.

$19.99current · sampled 2026-09-26 21:12 UTC
$19.99lowest since tracking began2026-09-26
US19.99 USD
EU19.99 EUR
UK16.99 GBP
Australia29.50 AUD
Canada25.99 CAD
Japan2,300 JPY
Brazil54.99 BRL
China76.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$11 China Japan Canada US Australia UK EU≈$23

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 25, 2026
v1.1.13 - Show Main Quest

Hello everyone, today it's a quite small but somehow important change to help players who struggle with the quest orders, especially during chapter 2. Indeed, during this part, lots of quests pop up a

Jul 28, 2026
A new game appears

Hello dear followers, Today, it's a special announcement! It's been a bit more than a year since Zefyr's release, and during this time, I've been updating and fixing it, but also trying to prepare wha

Jul 02, 2026
v1.1.11 - Power off and typos

Hello everyone, long time no see! I come back with a small update on Zefyr: English localization has been improved by fixing small typos and weird wording sometimes, thanks to the detailed feedback fr

Feb 19, 2026
v1.1.10 - Mega fix and quality of life

Hello everyone! Today here's the v1.1.10 fix update, a very big one that cover many aspects of the game! Here's what to expect: Soft locks I've fixed 5 soft locks that could happen in the game on very

Jan 08, 2026
v 1.1.9 - Dog bug fix

Fix dog possibly pushing the player in a bush/wall and soft lock That's it! peace! And happy new year of course 😁 Mathias, the dev

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresAction, Adventure, Indie
Player tagsAdventure · Exploration · Open World · Atmospheric · Mystery · Anime · Singleplayer · Lore-Rich · Creature Collector · Stealth · Metroidvania · 3D Platformer (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Steam Cloud · Family Sharing
LanguagesEnglish, French, Spanish - Spain, Portuguese - Brazil, Simplified Chinese
ControllerFull support
Achievements42
Official sitehttp://www.oneiricworlds.com/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Win 7 64 bits Processor: 2.4 GHz Memory: 16 GB RAM Graphics: 4GB RAM DirectX: Version 9.0 Storage: 6 GB available space