Game Information

Developer: SZ Games

Rating:

4.8/5

Released: April 2024

Last Updated: June 2025

Technology: HTML5 (Unity WebGL)

Platform: Browser

Size: ~15 MB

Plays: 34,052

Mobile Support: No

About What Lurks Below

Unearth the mysteries that lie beneath the surface in What Lurks Below, a captivating free online indie game crafted with passion during Ludum Dare 57. Designed as a semi-active incremental experience, this bite-sized adventure invites you to plunge into the unknown, challenging your cunning and curiosity as you unravel what truly lurks below.

With a runtime of around 30 minutes, it's the perfect game for both busy players looking for a rewarding challenge and die-hard indie enthusiasts craving something fresh and atmospheric. Every dig, discovery, and upgrade echoes the game's roots in the jam scene—expect clever surprises, emergent strategy, and a delicious sense of progression.

Visually, What Lurks Below embraces a moody, atmospheric style—think subtle animations and a palette that draws you into its eerie depths. The haunting background music and expertly tuned sound effects create a suspenseful ambiance that keeps your senses on edge. Each layer beneath the surface feels distinct, with emerging hazards, collectibles, and upgradeable abilities that ensure no two expeditions feel the same.

As you dig deeper, you'll collect mysterious substance orbs, unravel cryptic lore, and unlock upgrades that change the way you play. The incremental mechanics are accessible yet offer surprising depth, letting you experiment with different paths and strategies. Whether you're methodically exploring for secrets or pushing your limits against new threats, every run promises new discoveries.

What Lurks Below seamlessly blends classic incremental gaming satisfaction with a tense, almost roguelike edge. No downloads or installs—just launch in your browser and immerse yourself instantly. If you love indie gems, quick but impactful games, or eerie explorations that ignite your imagination, What Lurks Below is an unmissable experience. Sink into the darkness and discover what secrets await beneath the surface—if you dare.

How to Play

Getting started with What Lurks Below is thrillingly straightforward. Once you launch the game in your browser, you'll find yourself at the surface of a mysterious world. Use your mouse or keyboard (Arrow Keys/WASD) to dig, interact, and navigate the subterranean environment. Your primary goal: delve deeper, collect glowing substance orbs, and unlock upgrades to progress further into the unknown.

Each row you uncover may hold secrets, resources, or lurking dangers. Pay close attention to visual cues—sparkling ground may hide valuable orbs, while subtle tremors might indicate hazards or secrets nearby. As you gather orbs, visit your upgrade menu (usually accessible from the main interface) to enhance digging speed, reveal hidden items, or increase orb magnetism.

Since the game is incremental and semi-active, it's wise to plan your moves but also react to changing conditions underground. If you need a break, access the pause menu for options or to review your upgrades. Remember, your decisions shape your journey: some upgrades synergize better with certain playstyles (e.g., rapid excavation versus cautious exploration). Keep an eye on your orb count—you want to balance between spending for immediate gains and saving for powerful future upgrades.

Beginners should focus on uncovering substance orbs early, upgrading core stats wisely, and exploring different dig strategies. The game rewards both bold risk-takers and methodical planners, so adapt and experiment to find what works best. Immerse yourself in the tension and mystery as you push deeper—what will you uncover next?

Controls

mouse

keyboard

Tips & Tricks

Prioritize upgrades that increase orb collection range; early efficiency pays off later.
Listen closely to audio cues—some secrets are revealed by subtle sound effects.
Don't rush the deepest layers; sometimes, pausing to strategize reveals hidden opportunities.
Experiment with upgrade combinations—synergistic effects can supercharge your progress.
Track your substance orb spending; saving for high-impact upgrades can change the game.
Revisit upper layers after unlocking new abilities—missed secrets become accessible.
Embrace the unknown: some hazards can be turned into opportunities with the right upgrades.

Game Features

Short, immersive 30-minute gameplay—perfect for a quick but memorable adventure
Atmospheric graphics and sound design that set a uniquely eerie tone
Incremental mechanics with real strategic depth and emergent discovery
Bite-sized upgrades that allow creative experimentation every run
Browser-based; play instantly with no installation required
Hidden secrets and branching progression for strong replay value
Developed during Ludum Dare 57—showcasing raw indie creativity

Frequently Asked Questions

Is What Lurks Below truly free to play online?

Absolutely! What Lurks Below is a completely free HTML5 game playable in your browser via itch.io—no downloads or registration required.

Do my progress and upgrades save between sessions?

As an incremental jam game, your progress resets when you close or reload the browser. Each session offers a fresh run, encouraging experimentation.

Are there multiple endings or secrets to discover?

Yes! While the core experience is about 30 minutes, sharp-eyed players can uncover hidden secrets and alternative paths with each new run.

Is the game suitable for beginners or only experienced gamers?

What Lurks Below is designed for all skill levels, offering a gentle learning curve for newcomers while providing strategic depth for hardcore indie fans.

Why can’t I play on my mobile device?

Currently, What Lurks Below is browser-optimized for desktop and not compatible with mobile devices—playing on PC or Mac is recommended for the best experience.