Indie game studio

Small games,
quietly beautiful

We make calm little games for the corner of your screen. There's nothing to grind and no way to lose, so you can keep one open and come back whenever you like.

Watch the trailer See our games

First look

The Reefling trailer

A minute inside the tank: feed your fish, watch the water glow, and see the little aquarium that lives in the corner of your screen.

Now playing

Our games

Little games for people who want their screen to feel a bit warmer.

A Reefling aquarium full of pixel-art fish drifting among kelp and seaweed
Now on Steam

A Cozy Desktop Aquarium

A tiny, transparent aquarium that sits in the corner of your screen while you work or play. Your fish wander around, the water glows, and your desktop shows through the glass. Clicks outside the tank pass straight through to whatever's behind it, so it stays out of your way.

  • Cozy
  • Idle
  • Desktop overlay
  • 161 species
  • No fail state
Wishlist on Steam

The Steam page is up. Wishlist it and Steam will let you know the day Reefling launches.

161 Fish & critter species
Always-on Corner overlay
Zero Stress or fail state
Win · Mac · Linux Platforms

Lives on your desktop

A small, borderless window that stays on top and parks in the corner of your screen. The glass is transparent, so your wallpaper shows through. When you're not using it the interface fades away and you're left with water and fish.

Feeding and collecting

Click to drop food and watch your fish swim over to eat. Shells build up slowly while you play, so the currency never turns into a grind. Spend them in the Store to bring home new species from a roster of 161: 134 pixel-art fish plus seafloor critters like snails, crabs, and starfish.

Slow discovery

New species surface as you play. The full collection takes weeks, and it's built for a few minutes a day rather than long marathon sessions. Impatient? Any fish can be brought home early for double its price.

Make it yours

Decorate with seaweed, kelp, coral, sea fans, rocks, and iridescent shells. Name every fish. A day/night cycle drifts the water from bright noon to deep blue night. The tank grows livelier as your community grows.

Peaceful by default

Your fish never starve. Leave the tank for hours or days and it's always fine when you come back. There's soft aquarium ambience, a daily shell gift that grows with your streak, and a poke-to-scatter when you feel like stirring things up.

Steam features

Steam Achievements for milestones like your first fish, a full school, and tracking down every species. Family Sharing is supported too.

It's there when you want a small break. Feed a fish or just watch the water for a minute, then get back to whatever you were doing.

In the lab

What's next

Reefling won't be alone for long. Something warmer-blooded is taking shape, and the same transparent glass is moving onto dry land.

In development · 2026

Codename ████████

A cozy desktop terrarium

You've met the fish. Next, the same quiet glass parks on dry land: a tiny, sun-warmed terrarium for the corner of your screen. Little reptiles wander the sand and bask under the heat lamp, then duck into their hide while you work. Same calm as Reefling, in a whole new biome.

  • 🦎 Collectible reptiles
  • ☀️ Bask & hide behavior
  • 🪨 Build the habitat
  • 🌵 New desert biome

No store page yet, it's still warming up. Wishlists open right alongside Reefling. Watch this corner.

The studio

About us

Hollow Nebula Interactive is a one-person studio building games that respect your time.

Calm by design

No hunger timers and no punishment. They keep you company instead of adding another thing you have to keep up with.

Made by hand

I pick every sprite and sound myself, right down to the way the light moves through the water.

Made to linger

Slow discovery and a relaxed pace, the kind of game you keep open all day.

More on the way

Reefling is the first little world I've built, and it won't be the last. A second one is already basking in the lab.