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Watch trailer on Steam ↗Zefyr: Prologue
Oneiric Worlds · Published by Oneiric Worlds · Official site ↗
Very Positive — 94% positive (66 reviews) · 9 achievements
Last updated 27 Sept 2026
1st chapter of "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 on every island. Cure sick animals and reveal the truth.
Action, Adventure · 2024 · More free games
Discover hidden truths and outsmart foes in Zefyr: Prologue, an action-adventure game where you navigate a vibrant island world, learning stealth and combat skills.
About this game
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About the Game
1st chapter of "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 on every island. Cure sick animals and reveal the truth.
"Zefyr: Prologue" contains the first chapter of "Zefyr: a Thief's Melody". It's 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!
System Requirements
Will my PC run this? →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
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
AnnouncementsOfficial
Simplified Chinese, new publisher and promo!
Hello everyone!This month I have pretty big news to share with you. Let's go crescendo:Minor UpdatesFirst, I've made many minor updates fixing little bugs here and there thanks to your amazing feedbacks on the forums and discord server. You can find the latest small updates here: https://steamcommunity.com/app/1344990/eventcomments/Simplified Chinese in ZefyrThen, starting from today, the game is now officially available in Simplified Chinese thanks to the amazing work of HU Xing-xuan and JIA Li-jiang from VISTA CREATION. The game also went through some QA regarding this localization so it should be all good; but in case you find typos and/or bugs, don't hesitate to report them to me on the forums or the discord server, as usual. I really hope the game will be well received in China!New publisher: Creepy JarAnd last but not least, you might have seen that a new publisher has appeared next to my own studio on the Steam Page: Creepy Jar. Maybe you already know them for their best seller title "Green Hell" and their upcoming ambitious SF game "Star Rupture". And indeed, they are now the publisher of Zefyr too. They found out about Zefyr a while ago, and reached to me because they think they can broaden its audience. So we agreed on a partnership that will hopefully make the game reach more players.You might have spotted that their own self-developed titles are a bit more hardcore and realistic than my own games, with different vibes and intention, but they definitely know how to reach players. So it may be a leap of faith for me, but as for now the collaboration goes very well. So thanks a lot to them, and I trust it will bring the best for everyone.-75% Christmas PromotionNow, the winter holidays are coming pretty soon, I hope you all have great times with your family, friends and loved ones. And if you want to offer Zefyr to anyone, now is a good time: there's a -75% promotion! Merry Christmas everyone!And that's it for today news! Take care, peace. Mathias, the deve...Read full article on Community Announcements (Oneiric Worlds)AnnouncementsOfficial
Zefyr is out NOW! Please leave a review!
🎉Finally, it’s here ✨ After 12 years of crazy and naïve solo dev, my game Zefyr is officially released! 👇 Get it now ! 👇 https://store.steampowered.com/app/1344990 I’m incredibly happy, grateful, and super stressed at the same time. I truly hope you’ll enjoy it! Here’s some quick info: 1 — Please leave a positive review ...if you enjoyed the game or course! It really helps a lot to boost visibility and reach more players. 2 — Support Bundles Available For those who want to support the project even more, I’ve created a few bundles that you can all find on the game page: Zefyr Soundtrack Edition: Game + soundtrack Zefyr Supporter Edition: Game + soundtrack + artworks + HD in-game paintings + the very first build from 12 years ago All My Games: Zefyr + Slide (racing game with cute animals) + Silent Night (ride Santa’s sleigh in a chill scoring game) All My Games Supporter Edition: Everything above (all games/soundtracks/supporter packs) Feel free to choose one of these instead of the base edition! 3 — Playable on Steam Deck The game runs well on Steam Deck, even if it doesn't have the official badge yet. More details about game settings here: https://store.steampowered.com/news/app/1344990/view/542229787451589252 4 — Follow me If you don't want to miss anything of my future updates and upcoming games, you can: Follow my Steam dev page: https://store.steampowered.com/developer/oneiricworlds Follow me on Discord, Bluesky, Reddit, YouTube, Threads, Instagram, and more: https://linktr.ee/oneiricworlds 🙏Thank you SO much for the amazing support over the years.🙏 Your feedback and kind messages truly kept me going. Wishing you all the best — take care, and see you soon with updates and fixes! Have a wonderful day (and please don’t forget to leave a review!) Mathias, the (tired) devRead full article on Community Announcements (Oneiric Worlds)Patch NotesOfficial
Steam Next Fest & Spanish Update
Hello everyone, The demo and prologue of Zefyr are now available in a new language: Spanish (from Spain)! I hope it’s also relevant for Latin American players too. Of course, the full game will also be translated, but since this part is done, I decided to push the update to Steam right away! {STEAM_CLAN_IMAGE}/38727857/0f9efc875e19bfcc30e7a1f1d10291571a6dd650.jpg By the way, it was my dad who localized the game! He's a retired Spanish professor. I hope everything is accurate, but don’t hesitate to let me know if you spot any typos or if certain words could be improved. He speaks Spanish very well, but since he's not a gamer, some terms might be a little off. Any feedback is welcome! It was super nice working with him—it brought back memories of my old Spanish lessons at school! On another note, the demo will be featured in Steam Next Fest next week (October, 14th). I really hope the game will reach a much larger audience. Fingers crossed! :) And a piece of good news to wrap up this quick post: the full game has made it onto Steam's "Most Wishlisted Games" list, which is a huge milestone for a solo, unknown dev like me. Of course, I’m near the bottom of the charts, but it should still give me a bit more visibility for the full release. Thanks so much for your continued support! Feel free to follow my dev page on Steam: https://store.steampowered.com/developer/oneiricworlds Have a great day, and take care. Peace!Read full article on Community Announcements (Oneiric Worlds)Patch NotesOfficial
Bug fixes
Hello there, Since the release, a few bugs have been reported, so I fixed the following: FIX impossible to fully navigate the graphics menu with a controler FIX map is invisible in the bo dojo IMPROVE too small range to discuss with Terry so you need to get super close FIX missing tulip 3D model when collecting it Thanks a lot for all your feedback! As usual, wishlist the full game please and share itwith your friends, it's the best way to help me! Peace!Read full article on Community Announcements (Oneiric Worlds)AnnouncementsOfficial
Release Day! Leave a review please!
Hello everyone! Today is finally the release day of Zefyr:Prologue. Thanks a lot for your amazing support and patience! As a reminder, this prologue is the first chapter of the full game "Zefyr: A Thief's Melody", on which I've been working solo for 11 years. The full game should release on Q4 2024. I really hope you'll like it! As I'm a super small & totally unknown solo dev, I really need all the help I can get! If you want to support me you can: 👉 Leave a review Even a simple one like "yes" will do the trick. The more reviews, the more visible the prologue will be steam, and hopefully it will reach more players. 👉 Wishlist the full game Because this prologue is free, I shall pay myself only when the full game releases. So the end goal is to have more people interested in the full game. And the more wishlists, the more visible the final game will be. So, please wishlist the full game and share it to your friends: https://store.steampowered.com/app/1344990/Zefyr_A_Thiefs_Melody/ 🙏 Thanks A LOT for your help 🙏 Happy gaming, take care, peace!Read full article on Community Announcements (Oneiric Worlds)






