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Ritual Catacombs is a first-person WebGL horror game in the browser: walk cursed tunnels, gather glowing shards to open runic doors, and fight black cats, wraiths, and stone turret idols. About ~94 KB after Play, no install, no account.

Want stealth instead of combat? Try Floor Thirteen Horror.

RITUAL CATACOMBS

Explore cursed catacombs, collect shards, and survive the ritual of nine lives. From cat-shooter by Dmytro Kozhukhar (MIT, JS13K 2025). About ~94 KB downloads once when you press Play.

Click Play, then click inside the game frame to capture the mouse. WASD to move, left click to shoot, right mouse to strafe. Esc releases the cursor. Best on desktop with keyboard and mouse.

Press Play to load the game.
No save data - each run starts fresh in the catacombs.

Welcome to Ritual Catacombs - a free browser WebGL horror game you can play without an account or install. Press Play to load the about ~94 KB single-file engine in a same-origin iframe, then click inside the frame to lock the pointer and use WASD plus mouse aim to explore tile-based catacombs. Collect green shards to open runic doors, grab cyan hearts to heal, and avoid magenta orbs from turret idols. Black cats charge when their eyes flare red; white wraiths punish staring too long. The boss avatar has nine lives - shoot its glowing eyes to banish it. Privacy note: nothing leaves this device except the initial page and game files from this site. For more free browser games, open the games hub. Prefer stealth horror? Try Floor Thirteen Horror.

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Tags: #games

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Frequently Asked Questions

What is Ritual Catacombs?

A first-person WebGL horror game in cursed catacombs. Collect green shards to open runic doors, heal with cyan hearts, and survive enemies until you banish the nine-life boss.

How do I control it?

WASD to move, mouse to look (click inside the frame to lock the pointer), left click to shoot, right mouse button to strafe. Esc releases the cursor. Bracket keys adjust mouse sensitivity.

Is progress saved?

No. The engine does not use localStorage or accounts. Each session starts at level one unless you respawn after death at the last checkpoint door.

How big is the download?

About ~94 KB of inlined HTML and WebGL JavaScript after you press Play. The browser caches it for later visits on the same device.

Does it work on a phone?

The game expects keyboard and mouse with pointer lock. It may load on tablets but is designed for desktop play.

Is this open source?

Yes. Adapted from cat-shooter by Dmytro Kozhukhar (dkozhukhar/cat-shooter) under the MIT license. This site build adds noindex on the iframe and ships LICENSE next to the engine.