Zefyr: A Thief's Melody

Adventure· Open World· Exploration· Atmospheric

Released Jun 2025

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.

96% positive · 448 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 12 Oct 2026 $19.99

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Evaluation

Zefyr: A Thief's Melody launched on June 2, 2025, after over 12 years of solo development by Mathias at Oneiric Worlds. Following launch, the developer steadily supported the game with quality-of-life and bug-fix updates through February 19, 2026 (v1.1.10), which addressed soft locks, collectible accessibility, and general polish. A small July 13, 2025 update (v1.1.0) added a new optional area and animations. In December 2025, the game gained a new publisher (Creepy Jar) and Simplified Chinese localization. Crucially, on July 28, 2026, the developer explicitly announced he is moving on to a new game — "Yashi - Sand Driver" — and explained his reasoning: Zefyr was financially difficult and he needs a more sustainable project. He stated plainly that he still plans "a few fixes and quality of life updates" for Zefyr but framed these as minor maintenance alongside his new game's development, not as a content roadmap. The July 2, 2026 patch (v1.1.11) — a small bug-fix and localization tweak — aligns exactly with this characterization. The developer has not announced any expansions, DLC, or new content for Zefyr. The two DLC items on the store (a Supporter DLC and Soundtrack) both released on launch day and are supplementary. The July 28, 2026 post is a clear signal that the game's content development has concluded and the developer's focus has moved to a new project. Zefyr is complete.

Evidence

Developer announces his next game (Yashi - Sand Driver) and explains he is moving on because Zefyr was financially difficult. States he still plans minor fixes for Zefyr but no new content. Framing is clearly that Zefyr's content chapter is closed.

news post · Jul 28, 2026 source development ending

high

Small bug-fix and localization patch (v1.1.11) — typo fixes and a save-system hardening. Ends with a teaser about 'a new project,' consistent with the developer's shift in focus announced later that month.

news post · Jul 2, 2026 source development ending

medium

Content

2 of 2 released · no outstanding content

Released

Zefyr: A Thief's Melody - Supporter DLC

Jun 2025

Released

Zefyr: A Thief's Melody Soundtrack

Jun 2025

Media

Details

Developer

Oneiric Worlds

Publisher

Oneiric Worlds

Achievements

Platform

Windows

Controller

full support

Steam Deck

Verified

Players

Single-player

Adventure Exploration Open World Atmospheric Mystery Anime Lore-Rich Creature Collector Stealth Metroidvania 3D Platformer Animals Retro Third Person Fantasy

About this game

"Zefyr: A Thiefs' Melody" is a tribute to old adventure games like "Beyond Good & Evil" and "Zelda Windwaker"; it features exploration, dialogs, fights, puzzles, collectibles and huge Boss battles, all wrapped in a colorful world with a contemplative and feel-good atmosphere.

Run, jump, and climb wherever you want, travel between islands on a turtle, and discover a colorful open world!

Be it pirates, guards, robots or other thieves, you'll face many challenges during your missions. You are free to play sneakily or go straight to confrontation. But choose carefully!

During your journey, you'll find ancient Guardians. Some will block your path, others will be well hidden. Will you be able to bring back peace to these giant creatures?

Look for sick animals and cure them with fruits! Collect flowers, discover lost paintings... Many side quests await you in this feel-good world. Will you find them all?

Freely explore a colorful open world.
Learn various skills: climbing, stealth, fighting, bow, bombs, grapple and much more!
Confront or avoid pirates, guards and robots.
Cure sick animals all over the world.
Collect gemstones, paintings and flowers.
Defy giant Guardians during epic battles.
Discover cute and funny characters.
Save the world! Er no, I mean "be a true hero!" Er no, I mean "help your sister." Well, you have to start somewhere, kid...
Oh, yeah! And ride a cute turtle! But I guess you already got that from the picture.

Hi there! I'm Mathias and I've been creating video games since I was a child. I love coding, playing music and drawing. So what's better than creating a video game to do all of this at the same time? I do everything alone because I love every part of it and I'm a curious guy who likes to know how it works! I hope you'll like it :)

If you want to support me or learn more, don't hesitate to check out my website, where you can find all the links to social media, my dev blog and other stuff. Thank you so much!