Zefyr: A Thief's Melody News

🎉Finally, it’s here ✨ After 12 years of crazy and naïve solo dev, my game Zefyr is officially released!


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:


...if you enjoyed the game or course! It really helps a lot to boost visibility and reach more players.


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!


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

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

[h2]🙏Thank you SO much for the amazing support over the years.🙏[/h2]
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) dev

Hello everyone! Today’s a BIG DAY! 🎉

After 12 years of solo development, I’m incredibly excited (and stressed 😬) to finally announce the official release date for Zefyr: A Thief’s Melody!

[h2]👉 The game will launch on June 2nd, 2025! [/h2]



I've updated the trailer on the Steam page, but you can also watch it right here:
[previewyoutube][/previewyoutube]

The beta test is coming to an end, and while I still need to finish a few music tracks and sound effects, everything is on track for release!



I’ve reached out to the press to announce the release date — so it’s now official! 🎉
That said, media coverage has been modest so far (I’m still a pretty small fish 🐟), but if you're part of the press or a journalist, feel free to check out the official press release here:
https://www.oneiricworlds.com/public/pr/zefyrRelease.html

Zefyr will also be featured in the upcoming "Games Made in France" show next week — stay tuned!

Thank you so much for all your support during development. Your wishlists, shares, and kind words have helped keep this dream alive all these years.

👉 If you haven’t already, don’t forget to wishlist Zefyr!
https://store.steampowered.com/app/1344990

See you soon on the other side!
Take care, Peace! ✌️

Mathias, the dev

Hello everyone! Good news for all Steam Deck owners: I'm happy to report that the game has been fully tested on the Steam Deck, and the results are very promising. 🎉

Overall, the game runs very well on Steam Deck. While there are still one or two minor moments that I’m planning to polish before release, the core gameplay is already very playable and enjoyable.




Out of the box, the default graphics settings may be a bit too demanding for the Steam Deck, especially if you're aiming for stable performance and longer battery life. But don’t worry—there’s a setup that works great!

If you're playing in handheld mode, I recommend the following configuration for a balance prioritizing performance over visuals:

• Graphics Quality: Super Light
  
• V-Sync: No
  
• Target Fps: 30 FPS
  
• Ocean Reflection: No
  

With these settings, you can expect a battery life between 2 and 3 hours, depending on the levels you're exploring.




If you're using your Steam Deck plugged in, you can crank up the visuals. The game handles medium settings pretty well, but keep in mind that higher settings may cause the Deck’s fan to kick into overdrive, since the GPU will be working harder.

This is totally normal, but ti might be annoying. Your call!




Not yet—but I’m working on it! While the game doesn't have the official Steam Deck Verified badge just yet, I plan to request it.

So that's it for this time. Thanks a lot for your continuous support!
Have great day!
Peace 😊

Mathias, the dev

Hello everyone!
Here’s the monthly update about the game! So, what’s new since last time? Two big things:

• All gameplay content is finished.
• The game is FINALLY in beta test!

All the details below!




A lot has been added since the last update:

• All gameplay content is now complete! Just yesterday, I finished adding everything: all the rewards, paintings, animals, flowers, quests, hearts, and maps.
  
• However, I still have some work to do on the narration. I’ve added dialogues for the endgame, but I still need to work on a few more NPCs.
  
• I’ve also started adding some missing music for certain levels: Green Island, Pirate Island, The Quack Shack, as well as tracks for the flute and combat scenes.
  
• We now have Spanish and Brazilian Portuguese translations, thanks to the amazing work of my dad (Spanish) and Rinaldo Alípio Bueno (Portuguese).
  
• And I’ve added tons of small details to enhance storytelling in the world.
  

Thanks to beta testing, I was able to improve the game’s flow to ensure everything reads smoothly. I’ve adjusted element positioning, contrast, dialogues, timing, puzzle designs, clues, and even reworked some enemies and bosses.

Now there's a little restaurant on the pirate island.

A big moon with auroras.

• New feature: An auto-backup save system to prevent save losses due to crashes. Huge thanks to the beta testers who (unfortunately) experienced this issue firsthand.
  
• Improved snow particles, laser feedback, letter shake effects, hit stops, and sand shader dithering.
  
• Small particles on hidden interactable objects for better visual feedback.
  
• Adjusted sound volumes for a better experience.
  
• Map rendering improvements: Floors now appear in the correct order for better readability, fixed draw calls and multi-render issues.
  
• Another pass on unification, sky/atmosphere improvements, particle adjustments, and navigation meshes.
  
• Tons of bug fixes related to gameplay, rendering, dynamic loading, and various edge cases.
  

Small white stars indicate some hidden object, but you'll have to watch closely to spot them.



This month, I submitted the game to 7 festivals:

• MIX Spring
  
• The Days of Ramadan ✅ (I got accepted! Yay 🎉)
  
• Sci Game Show
  
• Minimal & Chill Steam Fest
  
• Six One Indie Showcase
  
• Games Made in France
  
• Wholesome Direct
  

I usually don’t get accepted, but this time, the Days of Ramadan welcomed the game! 😊




And the biggest news: Beta testing is happening RIGHT NOW! 🎉
I’m gradually opening it to more people as I fix bugs.

If you’d like to join, hop into the Discord server and check the rules:
[h3]👉 https://discord.gg/8CfrMJVSeb[/h3]

Huge thanks to all beta testers! Your feedback has been amazing. 🙌
I also tested the game on Steam Deck—I could finish it, but it still needs a few optimizations.

And you might have guessed it, but the game won’t release in Q1 2025. I’m behind schedule, so the release is now pushed to Q2 2025.




Recently, I noticed my blog was laggy and hard to maintain. So, I looked for alternatives to WordPress... but wasn’t satisfied.

So I coded my own static site generator (SSG), as a test! 🎉
For those unfamiliar, an SSG generates a bunch of static HTML pages from simple text-based articles. It was super fun to build—but (as always) more complicated than expected.

I also took the time to draw a banner for the new blog! 🎨


For the curious, here’s a temporary version: https://www.oneiricworlds.com/blog/en
It's still a work in progress, but it should be MUCH faster and lighter than my current blog. We’ll see how this evolves!


Thank you all for your support!
I’m getting closer to the finish line now.

Take care, peace, and see you on Discord! ✌️😊

Hello everyone, and Happy New Year! So what's new for this month of January? Quite a lot actually!




As mentioned in the last post, I started a 1st beta test with a small group of lucky (or not so lucky?) friends, players, and designers. The feedback has been incredibly helpful. So, over the past month, I’ve been primarily improving the "flow" of the game. By flow, I mean: Do players understand what to do? Where to go? Is it clear enough? Are they getting lost? Is it too difficult or too boring? These are "high-level" improvements that can only be tackled once the "low-level" aspects are stable enough (no bugs, stable mechanics, understandable UI, etc.).

Here are some of the changes I made:

• Added points of interest in various levels to guide the player’s eye, such as lanterns near important doors, contrasting plants (e.g., salads!), or floating particles.
  
• Adjusted the placement of key items to make them more visible (e.g., the pianist in the bar); removing surrounding grass, adding lights, or creating distinct shapes to draw attention.
  
• Enhanced readability by adding more contrast, such as larger cracks to hint at hidden secret walls, avoiding similar colors around important items, etc.
  
• Tweaked colors to avoid confusion between different key badges, laser beams, or other items.
  
• Added text bubbles that appear over distant important NPCs.
  
• Made bigger cannonballs for improved readability.
  
• Adjusted when new quests appear to better capture the player’s attention and fixed potential soft locks.
  
• Added auto-save zones for overly challenging levels.
  
• Updated maps with useful additional information.
  
• Added nav-island posts on visited islands (expanding the game’s teleport system to make ocean exploration smoother).
  
• Improved text and dialogue, adding emphasis by highlighting key words in different colors.
  

A more visible spot for the pianist

Turtles hang out around water salads and occasionnally "speak" to draw player's attention.

A few more info on the map.




One of the main pieces of feedback from the beta test was that the world felt "too big and empty." So, I rescaled 4 of the largest and most annoying levels, as well as the world map. This was a huge task because I had to re-test all the levels to ensure that mechanics like jumps, projectiles, and distances still worked well—it wasn’t as simple as applying a global scale. Some elements had to remain their original size.

This scaling process corrupted previous save files (from beta testers and players who tried the demo), so I had to code a save porting system to ensure no progress was lost.

Rescaling the world also meant revisiting all the loading and activation zones for each island to avoid conflicts. Additionally, I had to rework the ocean textures to make them visually cohesive and compatible with the new world tiling.

For reference, the world is now 6x6km, still mostly water, with 18 zones/islands to explore. A few more zones are planned.

Lots of islands to discover.




I also took the opportunity to add some new content to the game:

• A new level: the Aqualums Library.
  
• A painting shop on Aqualums.
  
• A zoom/dezoom feature for the map.
  
• Unrevealed areas on the map now show as "???" if you don’t have the local map.
  
• Added aiming animations for the character when jumping or falling.
  

And a few new upgrades for the player to discover:

• Focus Band: Slows time when aiming.
  
• Lightness Ring: Enables smooth landings (without noise) near guards.
  
• Pepper Salad: A boost for turtles, allowing them to travel faster and reducing journey time (this works well with the scaled-down world).
  
• Magnetic Core: An upgrade for one of the weapons.
  
• There are also now 4 outfits to collect, each with unique properties designed to be useful in different levels and situations.
  

An outfit to go faster.




Finally, I’ve polished and improved several aspects of the game:

• Updated the final cutscene.
  
• Refactored weather zones code. Weather effects are now continuous in the open world, with sound effects and the ability to handle rain, thunder, pollen, snow, grass blades, and more. It’s also fully compatible with the world tiling.
  
• My father has started working on the Spanish translation.
  
• Fixed respawn zones (the zones that prevent falling into chasms) in all levels. Some were poorly designed and caused conflicts with cutscenes and dialogues, leading to soft locks.
  
• Cleaned up old components and unused code.
  
• Improved production tools: I can now generate all outside levels with a single click and perform better pre-release automated checks.
  
• Tons of minor fixes and improvements.
  

Now the rain appears and disappears smoothly.

In the end, as a result of the beta test (which is still ongoing), I’ve built and released 6 more versions of the game, taking it from 1.0.6 to 1.0.12.




This month, I didn’t do much marketing for the game, but I applied to 6 festivals: Storyteller, LudoNarraCon, Precision Platformer, Sportacular (for "Slide," my other game), BIG LATAM, and Cozy & Family-Friendly Games Celebration. Fingers crossed!






Last but not least, for Christmas, I designed a small hidden object game where you search for family presents in my family’s house. I had previously made a similar game for my in-laws, but not for my own family. That’s been fixed now! You can play it for free here (in French, but you’ll figure it out):


That’s it! Actually, this turned into quite a big update. The beta test will gradually open to more people, so stay tuned!

As always, thank you so much for your continued support.
Take care, and peace!

Mathias