Unknown Worlds Entertainment

What Unknown Worlds Entertainment does

Unknown Worlds Entertainment, Inc. is an independent video game developer founded in 2001 in San Francisco by Charlie Cleveland and Max McGuire, now operating as a fully remote, globally distributed studio of 51–100 employees and a wholly-owned subsidiary of Krafton, Inc. since the 2021 acquisition. The studio is best known for the Subnautica franchise — an underwater open-world survival series built around exploration, base-building, vehicle crafting, and discovery-driven narrative on alien ocean worlds — anchored by the original Subnautica (2018, 18M+ copies sold), the narrative sequel Subnautica: Below Zero (2021), and the recently launched Subnautica 2 (Early Access May 14, 2026). Beyond Subnautica, the studio has shipped Natural Selection 2 (a hybrid multiplayer FPS/RTS title originating in the Half-Life modding scene), Moonbreaker (a turn-based miniatures game set in a Brandon Sanderson universe), and Zen of Sudoku.

Core technology centers on Unreal Engine 5 for Subnautica 2, leveraging Lumen for dynamic lighting and a Mesh Blend plugin for seamless underwater environmental transitions, alongside custom creature behavior-tree AI tuned for four-player cooperative play with crossplay between Xbox and PC. The studio distributes games across Steam, Epic Games Store, Xbox, PlayStation, Nintendo Switch/Switch 2, and mobile (iOS/Android via Playdigious), and notably declined to use generative AI in development.

The business model combines one-time game sales (Subnautica 2 priced at $29.99; mobile ports at $9.99 and $8.99) with day-one Xbox Game Pass subscription revenue and a minor merchandise stream (Youtooz plushies at $29.99). The studio runs a community-led, open-development GTM motion with Early Access releases, public dev vlogs, community playtests, and direct Discord/Reddit engagement. In May 2026, Krafton paid a $250M earnout to Unknown Worlds after Subnautica 2 exceeded revenue thresholds, triggered when monthly studio revenue surpassed $69.8M.

Name

Unknown Worlds Entertainment

Legal name

Unknown Worlds Entertainment, Inc.

Website

https://unknownworlds.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

51–100 employees

Short description

Unknown Worlds Entertainment is an independent video game developer best known for the Subnautica underwater survival franchise, operating as a remote studio and Krafton subsidiary since 2021, serving PC, console, mobile, and Xbox Game Pass consumers globally.

Ownership category

akta.pro rank

Product category

Indie Video Games

NAICS

Software Publishers (5132)

SIC

Games, Toys & Children's Vehicles (No Dolls & Bicycles) (3944)

akta.pro primary industry

Web3/Blockchain Game Studios (MPAFAAAO)

Keywords

• Video game development
• Open-world survival games
• Multiplayer cooperative games
• Indie game studio
• Early access games

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Game Sales (Direct): Unknown Worlds generates revenue through direct game sales across multiple platforms including Steam, Epic Games Store, PlayStation, Xbox, Nintendo Switch, and mobile (iOS/Android). Games are sold as one-time purchases with no microtransactions, loot boxes, or battle passes. Subnautica 2 is priced at $29.99 in Early Access.
2. Xbox Game Pass / Subscription Revenue: Subnautica 2 launched day-one on Xbox Game Pass Ultimate and PC Game Pass, meaning revenue is partially generated through Microsoft's subscription service based on player engagement and retention metrics.
3. Mobile Game Sales: Subnautica mobile (iOS/Android) is sold at $9.99 with Subnautica: Below Zero mobile at $8.99, generating additional revenue from the mobile gaming audience.
4. Merchandise (Plushies): Subnautica x Youtooz collaborative plushie collection featuring Peeper, Bladderfish, and Reaper Leviathan sold at $29.99 each.

Pricing tiers

Go-to-market motion2 records

Distribution channels7 records

Marketing channels8 records

Core offering

Unknown Worlds Entertainment is an indie game developer that designs, develops, and publishes premium video games across the Subnautica franchise (underwater survival/exploration), Natural Selection 2 (hybrid multiplayer shooter/strategy), Moonbreaker (turn-based digital miniatures strategy), and Zen of Sudoku (puzzle). Games are sold as one-time perpetual licenses across PC, console, and mobile platforms, with select titles available via Xbox Game Pass.

Product overview

Unknown Worlds Entertainment is a game developer creating unique gaming experiences across multiple franchises. Their portfolio centers on the Subnautica franchise, which includes the original Subnautica (underwater survival), Subnautica: Below Zero (narrative sequel), and the upcoming Subnautica 2 (multiplayer sequel). Beyond the Subnautica series, the company developed Natural Selection 2 (hybrid FPS/RTS multiplayer) and Moonbreaker (turn-based strategy miniatures game). Zen of Sudoku represents their entry into the puzzle genre. The company follows an open development model, engaging communities during development through Early Access and playtests.

Differentiator

Problem solved

Functional benefit

Products and services

• Subnautica 2 Open-water survival game set on a new alien planet called Zizora, featuring four-player cooperative multiplayer with crossplay support between Xbox and PC. Built in Unreal Engine 5 with Lumen for dynamic lighting. Players explore underwater biomes, discover creatures, craft vehicles, tools, and bases to survive. Sold to individual gamers on PC and console.
• Subnautica Underwater open-world adventure game set on alien planet 4546B. Players descend into the depths to explore, gather resources, craft equipment and submarines, and survive in an ecosystem filled with wonder and threats. Won the Golden Joystick Game of the Year in 2018.
• Subnautica: Below Zero Narrative sequel to the original Subnautica, set two years after the first game on planet 4546B. Players return to uncover the truth behind a deadly cover-up while surviving by building habitats and crafting tools.
• Moonbreaker

Quantifiable outcome

• Subnautica 2 sold 2 million copies within 12 hours of Early Access launch.
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature3 records

Partnerships

Three partnerships are on record, tiered minor and core.

• YoutoozminorGTM or Marketing Partner · 28 August 2025Unknown Worlds partnered with Youtooz to create a collaborative plushie collection featuring Subnautica characters: Peeper, Bladderfish, and Reaper Leviathan. The plushies are sold through Youtooz's storefront at $29.99 each, with an estimated shipping date of December 2025.
• PlaydigiouscoreTechnology or Integration · 27 May 2025Playdigious, a French mobile game developer, partnered with Unknown Worlds to port Subnautica and Subnautica: Below Zero to iOS and Android. The mobile versions feature exclusive touch controls, Game Center achievements, cloud saves, and MFi controller compatibility. Subnautica Mobile won 'Indie Mobile Game of the Year' at the Gaming on Phone Awards in 2025.
• Microsoft / Xbox Game PasscoreChannel Partner/ Reseller/ DistributorMicrosoft/Xbox included Subnautica 2 as a day-one release on Xbox Game Pass Ultimate and PC Game Pass. This provided massive visibility to millions of Game Pass subscribers and contributed to Subnautica 2 selling 2 million copies within 12 hours of launch, with the game remaining on the Game Pass service.

Scale indicators9 records

Recent moves6 records

Expansion highlights7 records

Broad incumbents

• Bethesda Game Studios: Developer of 'Fallout' and 'Elder Scrolls' franchises, both open-world survival/exploration games that compete in adjacent survival genre territory at AAA scale with broader portfolios.

Direct peers

• Iron Gate AB: Developer of 'Valheim', a Norse-themed survival crafting game that has sold 10M+ copies and competes directly with Subnautica in the survival genre on PC/console with similar Early Access origins.
• Endnight Games: Developer of 'Sons of the Forest' and 'The Forest', both survival/exploration games that compete directly with Subnautica for the survival-crafting audience on PC/console with similar open-world exploration DNA.
• Coffee Stain Studios: Developer of 'Satisfactory' and co-developer of 'Deep Rock Galactic', survival/crafting games with co-op multiplayer that share Subnautica 2's social gameplay focus and PC/console audience.
• Klei Entertainment: Developer of 'Don't Starve' franchise and 'Oxygen Not Included', survival games with strong art direction and craft focus that compete for survival genre audiences with similar indie studio profile.
• Re-Logic: Developer of 'Terraria', a 2D sandbox survival crafting game with 44M+ copies sold that competes in the broader survival/crafting genre alongside Subnautica with similar indie developer DNA.
• Facepunch Studios: Developer of 'Rust' and 'Garry's Mod', both survival/multiplayer games with strong community focus that compete for survival genre PC players with similar Early Access/community-driven model.
• Hinterland: Developer of 'The Long Dark', a survival exploration game set in Canadian wilderness that shares Subnautica's atmospheric exploration-driven gameplay DNA and similar indie studio profile.
• Ghost Ship Games: Developer of 'Deep Rock Galactic', a co-op survival shooter with strong community that directly parallels Subnautica 2's four-player co-op + crossplay model and similar indie studio scale.

Emerging players

• ConcernedApe: Solo developer of 'Stardew Valley' and 'Haunted Chocolatier', an independent game developer with comparable indie ethos, community-driven development model, and absence of microtransactions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/NS2
• YouTubeyoutube.com/UnknownWorlds
• Facebookfacebook.com/UnknownWorlds
• Instagraminstagram.com/uwedev
• LinkedInlinkedin.com/company/unknown-worlds-entertainment

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Unknown Worlds Entertainment