Explore a dark, abandoned underground complex filled with puzzles and secrets. Fight mutants and drones using a variety of weapons. Push, move, or throw objects to kill enemies, block entrances, or climb high places.
Release Date:
2025
Developer:
Publisher:
Gameplay | LeftUnknown gameplay trailer
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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“As a solo developer, releasing in Early Access allows me to shape the game alongside the community—balancing mechanics, improving systems, and adding content based on real player feedback.

The game’s world, progression, and survival elements are best refined through iteration with active players. Early Access will let me test features in real gameplay conditions, gather suggestions, and ensure the final release is as polished as possible.”

Approximately how long will this game be in Early Access?

“There's still a lot to add and polish, so realistically I expect Early Access to last around two years.”

How is the full version planned to differ from the Early Access version?

“The full version will include all planned features along with a complete, fully realized first floor (level).

Planned features:
- More weapons, such as a sniper rifle, machine gun, rocket launcher, and additional melee weapons
- Item storage containers with shared space
- Weapon attachments like silencers, laser sights, scopes, and more
- Player and weapon upgrades (e.g., increased damage, health, and stamina)
- New enemy types, including sentry turrets, tentacle monsters, and other grotesque creatures
- An objectives system to support main story progression
- A map in the PDA to check your location and track unexplored rooms
- Weapon stats and the ability to change attachments via PDA
- Weapon durability system — weapons will jam or do less damage if not properly maintained
- Reworked older rooms and weapons (improved meshes and textures)
- More puzzles, environmental obstacles, and parkour elements
- Steam achievements”

What is the current state of the Early Access version?

“The game already features a variety of core systems, including interactive and physics-based gameplay, satisfying gunplay, inventory and item management, a robust saving system, and a sizable map filled with enemies and puzzles, along with small snippets of lore that give a taste of what’s to come”

Will the game be priced differently during and after Early Access?

“The price will increase once Early Access ends.”

How are you planning on involving the Community in your development process?

“I plan to stay active on the Steam forums (and Discord if you’d like to join), listening to suggestions, bug reports, and ideas from players. Regular updates and patch notes will keep everyone informed about changes, while feedback will directly influence the direction of the game.”
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This game is not yet available on Steam

Planned Release Date: 2025

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About This Game

LeftUnknown is built around interactivity and player freedom. Everything in the game is movable, physics-based, and fully interactable. Players have complete control over how they explore and engage with the environment—no invisible walls or constant loading screens.

Explore an abandoned underground complex filled with puzzles and secrets. Fight mutants and security drones, collect, buy, and sell items, manage your inventory, weight, and bleeding. Uncover scattered notes and diaries to piece together what happened in the complex.

Experience satisfying and dynamic combat, with weapons that feature recoil, bullet spread, and physics-driven interactions. Create chaos by exploding gas cylinders or tossing grenades to send objects—and enemies—flying.

Activate god mode, become invincible, or spawn dozens of bricks, drones, or even beds with console commands. Let your imagination run wild.

Story"Marius, a former military officer turned nature photographer, ventures into a remote forest to film wildlife. While recording, he stumbles upon two Live-D Corporation agents beating and executing a civilian. Hidden in the bushes, he captures the entire event on camera.

Marius has long suspected Live-D of corruption and had been collecting scattered evidence—but this is the first solid proof. As he tries to leave the scene, he accidentally snaps a branch. The agents hear it. He narrowly escapes, but in the rush, he unknowingly drops his wallet.

Back home, as he reviews the footage, dread sets in. He notices his wallet is missing—left behind at the scene. Panic kicks in. Live-D now has his identity.

Just as he begins to consider his next move, the power cuts out. Moments later, masked men storm his home.

Marius is knocked out cold and awakens chained inside a secret Live-D underground complex. Live-D were thrilled—they had finally captured the person who had been spying on them, causing problems for years. Marius was just in time for the researchers to test their newly created weapon: a serum designed to turn any living being into a parasite that spreads and ultimately destroys entire cities or even countries.

Unfortunately for Live-D, the results didn’t go as planned. Instead of transforming into a monster, Marius falls into a coma.

Twenty years later, something went terribly wrong. The complex got abandoned and wasted. Marius awakens—alone, disoriented, and with no idea what has become of the world."

Further details—and the events following Marius’s awakening—will be revealed as the game unfolds.

Mature Content Description

The developers describe the content like this:

The game includes blood, frequent gunfights, and a grim post-apocalyptic atmosphere

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel Core i3-4170 or AMD FX-8120
    • Memory: 4 GB RAM
    • Graphics: Nvidia GeForce GTX 460 or AMD Radeon HD 5830
    • DirectX: Version 11
    • Storage: 2 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel Core i5-4570 or AMD FX-6300
    • Memory: 8 GB RAM
    • Graphics: Nvidia GeForce GTX 1050 or AMD Radeon RX 460
    • DirectX: Version 11
    • Storage: 2 GB available space
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