To make a horror game you need four things working together: a claustrophobic setting, layered sound design, an enemy that stalks the player rather than simply chasing, and an ending that pays off the dread — then you build and publish it, right in your browser. This guide walks through each step and shows a real example built with Rosebud, a free, no-code horror game maker, so you can go from idea to a playable game without writing a line of code.
Here's the whole process at a glance:
- Set the scene — a dark, claustrophobic environment.
- Layer the sound — ambient dread, jump-scare triggers, shifting music.
- Add the threat — a monster that lurks and stalks the player.
- Give players something to do — notes, clues, and interactions.
- Write the ending — escape, or succumb.
Prefer to start building right away? Open the horror game maker and follow along. Below, we break down how each piece comes together using an example game.
Example: Cavernous Caution – A Horror Game Built with Rosebud
One chilling example of a horror game made with Rosebud is Cavernous Caution, created by our Power User Boots.
This game takes place in an abandoned mine, where players navigate through thick fog, uncover disturbing diary entries, and try to escape an unseen entity lurking in the darkness.
Let's break down how you can create something just as terrifying.
1. Set the Scene: The Dark Environment
Every horror game needs a chilling backdrop. In this case, the game takes place in an abandoned mine, thick with fog and barely lit corridors.
Instead of manually setting up lighting and atmosphere, you can describe the mood you want and let the maker build it. Use a prompt like this:
"A dark, abandoned mine with flickering lights and thick fog. The environment should feel claustrophobic and unsettling. Shadows stretch unnaturally."
Rosebud returns a scene setup using Three.js, complete with fog, shadows, and eerie lighting effects.
2. Summon the Sounds of Fear
Sound is everything in horror games. Footsteps echo. A whisper calls your name. The wind howls through unseen tunnels.
Layer your sound design across three tracks:
- Ambient sounds: Background wind, dripping water.
- SFX triggers: Footsteps, whispers, monster growls.
- Music changes: Subtle shifts as danger approaches.
Rosebud lets you upload your own sound files and attach them to locations and events, so footsteps sound different on stone vs. dirt, and whispers seem to come from behind you.
3. Spawn the Unknown: Monster Logic
No horror game is complete without something stalking you.
In this game, the monster doesn't simply chase you—it lurks. It watches. And when you least expect it... it moves.
Describe the behavior you want:
"A shadowy figure should appear in the distance, flickering in and out of view. The closer you get, the more distorted the screen becomes. If the player lingers too long, it attacks."
This generates the monster logic you need:
- Spawning the entity in dark corners.
- Triggering a chase sequence if the player stays too long.
- Using distortion effects to make the presence feel unnatural.
4. Make the Player Interact with Fear
A good horror game makes players feel involved.
This game features scattered notes that tell the story of a lost miner losing his mind.
Set it up with:
"Place collectible diary pages throughout the environment. When collected, they display cryptic messages."
This generates:
- A simple UI popup that displays the content.
- A system that tracks collected notes.
5. Endings: Escape or Succumb?
How should your game conclude? A horror game's ending should leave a lasting impression.
In this game, two endings exist:
- Escape: If the player reaches a hidden exit before the monster gets them.
- The Dark Ending: If they take too long, the screen fades to black as footsteps grow louder... and then silence.
Set this up with:
"If the player reaches the exit, show a message: 'You Escaped.' If they fail, show: 'It Found You.' and fade to black."
The maker wires up the logic and UI transitions to match.
Another Example: A Horror Game Built with Gemini 3 Flash
We also tested how fast this comes together by prompting a full horror game — "The Halls" — from a single line, then refining it. Watch the build:
One tip worth stealing from that build: give players a way to read and survive the threat. Add flickering lights as a danger cue and let the player repel the enemy with the flashlight — the monster becomes a system to master instead of an unavoidable death, which is what keeps a horror game tense but fair.
Your Turn to Build
This horror game was built entirely in the browser with Rosebud, letting you focus on crafting an experience rather than debugging code.
To create your own, all you need to do is:
- Describe your environment
- Define your fear factor (sounds, visuals, monsters)
- Set up interactions & consequences
Ready to try it? Jump into the horror game maker and start building.
So, what nightmare will you create next?
If you have any question, please join our Discord to engage with the community.
Keep building
Ready to make your own? Open the horror game maker and build it in your browser. More step-by-step guides: survival horror game, CloverPit game. And for inspiration, see this solo-built MMORPG made on Rosebud.
Play horror games made on Rosebud
Want to see what's possible? Play a few horror games the community built on Rosebud: Backrooms: Stay Alive, DEAD ATM, and Ward 13: The Descent.
