Quantum Lantern Studios

Worlds worth
staying up for.

A tiny one-person indie studio crafting cosy, curious games where technology and nature glow side by side — small worlds, warmly lit.

Meet the studio
Now in development

Botanitech.

Cultivate the machine · grow the wild

Botanitech is a cosy bio-engineering garden sim for PC, Nintendo Switch and Steam Deck, playable solo or in two-player co-op, in development for 2026.

Botanitech key art — a terraced greenhouse of brass pipes, glass domes and glowing blue flowers above a waterfall valley
Key art, work in progress — the terrace gardens above the falls.

A cosy bio-engineering garden sim aboard a drifting orbital arboretum. Splice circuitry into seedlings, tend a greenhouse that hums and blooms, and coax a quiet ecosystem back to life, one warm glowing specimen at a time.

Genre
Cosy bio-engineering sim
Platforms
PC · Switch · Steam Deck
Players
Solo or 2-player co-op
Status
In development · 2026
From the specimen ledger
SP-01EmberfernDrinks daylight through its fronds, breathes it back as a warm glow after dusk. The first plant I ever got working.
SP-02Circuit MossLow-voltage moss that carpets old machinery and quietly reroutes power as it creeps. Will absolutely overgrow your wiring if you let it.
SP-03Lumen PodA seed that boots like a tiny reactor. Crack one open and it can light a whole greenhouse — or blow your fuses. Ask me how I know.

And now for something louder. The second game on my workbench started as a jam prototype about a very stubborn gate, and refused to stay small.

Castle Defender key art — a moonlit stone castle firing cannons and frost magic at a horde of orcs, wolves and a stone golem
Working title

Castle Defender

First key art — night three of the siege, wolves at the barricades.

Castle Defender is a medieval defender-incremental for PC and Steam, single-player, currently in prototyping.

Genre
Defender-incremental
Platforms
PC · Steam
Players
Solo
Status
Prototyping

A medieval defender-incremental. Actively command towers, troops, heroes and spells to hold a castle under endless siege — and when the walls finally give, prestige. Your fortress persists between runs, growing from a wooden keep into a god-tier citadel, with numbers to match.

The studio

A solo studio with a long night ahead.

I make games for the quiet hours — the ones you play with a blanket, a warm drink, and the lights turned low. No quotas, no noise. Just worlds you can sink into.

I am drawn to the place where technology and tenderness meet: circuits that bloom, machines that breathe, and castles that remember every stone you ever laid.

01

Warmth first

Every system should feel like a hand on your shoulder, never a test you might fail. Yes, even the siege game.

02

Curious tech

I treat technology as a material to shape with care — not a spectacle to flaunt.

03

Slow craft

I would rather ship one small world that truly glows than ten that merely flicker.

Florian Fülbert

Founder, designer and sole developer · Quantum Lantern Studios

I am the whole studio — design, code, art direction and the late-night bug hunts. Quantum Lantern is a one-person operation by choice: it keeps the scope honest and lets every system get the attention it deserves.

[email protected]

One indie dev, one shared lantern for everyone following along. I ship when it glows.

Devlog

From the workbench.

All dispatches →
Jun 2026Castle Defender

Why a cosy studio is building a siege

It was supposed to be a weekend jam about holding one gate. Then the prestige loop clicked and nobody slept.

→
Apr 2026Botanitech

Wiring the first seedling

How the splice system turns a humble sprout into a living circuit — and why we rebuilt it three times.

→
Feb 2026Studio

Notes from a solo campfire

One indie dev, one stubborn lantern, and the rituals that keep the light on.

→
Jan 2026Tech

Lighting the greenhouse

The soft volumetric glow that gives our nights their warmth, without melting your GPU.

→
Questions

Frequently asked.

What is Quantum Lantern Studios?

Quantum Lantern Studios is a one-person independent game studio founded by Florian Fülbert, making cosy, curious games where technology and nature glow side by side. The studio is currently developing two titles: Botanitech and Castle Defender.

What is Botanitech?

Botanitech is a cosy bio-engineering garden sim set aboard a drifting orbital arboretum, in development for 2026. You splice circuitry into seedlings, tend a greenhouse that hums and blooms, and slowly coax a quiet ecosystem back to life.

What platforms will Botanitech release on?

Botanitech is planned for PC, Nintendo Switch and Steam Deck. It can be played solo or in two-player co-op.

What is Castle Defender?

Castle Defender is a medieval defender-incremental for PC and Steam, currently in prototyping. You actively command towers, troops, heroes and spells to hold a castle under endless siege, and prestige when the walls finally give — your fortress persists and grows between runs.

Who makes Quantum Lantern Studios games?

Every Quantum Lantern game is made by Florian Fülbert, the studio’s founder and sole developer, who handles design, code and art direction. You can reach the studio at [email protected].

When will Quantum Lantern games be released?

Botanitech is in active development targeting 2026. Castle Defender is at the prototyping stage and does not have a release window yet. Release news goes out through the studio devlog and mailing list first.