QUIET launches co-op horror demo on Steam and Epic

Written by Adriano Ladislau in Games

Published on October 22, 2026 18:00 UTC · Updated on October 22, 2026 23:28 UTC

LINE Games releases the first official QUIET demo on Steam and the Epic Games Store, bringing co-op alien-duck horror to PC ahead of a 2027 launch.

LINE Games released the first official demo for QUIET on Thursday, October 22, 2026, bringing the co-op horror game about alien ducks to Steam and the Epic Games Store. The demo is free and follows a playtest that drew 271,132 players from 148 countries, according to the South Korean publisher. A global launch is planned for the first half of 2027, while the game's Steam page lists a narrower window: the first quarter of the year.

The demo includes one official stage and the "Duck Out" Arcade mode for up to four players, plus a spaceship-themed lobby and special Halloween content. LINE Games says the build received bug fixes and optimization work to make it more stable, changes driven by feedback from the public playtest held in August.

A 271,000-player playtest across 148 countries

The numbers help explain the anticipation around the project. More than 350,000 people signed up for the playtest, and 271,132 actually joined the game, according to a press release LINE Games distributed on October 19. Inven Global reported on Thursday that players from 148 countries took part in the test phase.

The road here was fast. QUIET was revealed in April 2026 and had its first public demo at PlayX4 in May. The open Steam playtest began on August 3 and, in less than two weeks, had already passed 150,000 participants, according to South Korean media. In August, LINE Games said it aimed to launch the game globally later that year; the current schedule pushes the debut to 2027, giving the team more time to polish the experience.

According to the developer, player feedback was used to fix major bugs, optimize the build and add frequently requested features, including the spaceship lobby that appears in the demo. It is a sign that the test served as a real production milestone rather than just a marketing beat.

"Every sound matters. Microphone required."

How QUIET works: ducks, microphones and silence

In QUIET, players control a flock of alien ducks that crash-lands on Earth and must recover the parts of their spaceship from inside a seemingly ordinary house. The problem is the homeowner: a monstrous creature who hears every movement, every dropped object and every sound picked up by the microphone. The game can be played solo or in online co-op for up to four people.

The core idea turns sound into a central mechanic. Hiding is not enough: players must control the volume of their real-world voices, because the game uses the microphone to measure how loud the conversation is. A startled scream, a laugh or an argument about the next objective can give the group's position away. On Steam, the game lists single-player, multiplayer, online co-op and LAN co-op support, all on Windows.

The tone balances comedy and tension. The ducks have deliberately clumsy animations and cartoonish visuals, while the dark house, narrow hallways and glowing-eyed homeowner pull the game toward horror. It is the same mix that worked in titles such as Lethal Company and Content Warning: silly characters in dangerous situations, with the humor coming from how the group reacts to fear.

Duck Out, a spaceship lobby and Halloween content

The demo is not just a slice of the campaign. Alongside one official stage, the package includes the "Duck Out" Arcade mode, designed for up to four players and with its own rules, separate from the main experience. The idea is to offer a faster, more chaotic variation where the flock can test the sound mechanic without the pressure of pushing through the house.

• One official stage: a campaign segment that introduces the search for ship parts and the threat of the homeowner.
• Duck Out: an Arcade mode for up to four players with a different spin on the main formula.
• Spaceship lobby: a themed waiting room requested by the community during the playtest.
• Halloween content: seasonal decorations and presentation, including pumpkins and costumes.
• Technical fixes: bug fixes and optimization for a more stable experience.

LINE Games also plans to use the demo to keep the conversation going with the community. The publisher says it will continue listening to players after the demo launch, a practice it already adopted during the playtest with balance updates and fixes. For a game that depends on coordination and communication, that contact is especially important: connection issues, microphone calibration and unclear objectives can ruin a group session.

Release dates, platforms and the road to 2027

The demo is available on PC through Steam and the Epic Games Store. No console version has been announced so far. LINE Games is also taking part in two Halloween showcases: The MIX Fall Showcase, which hosted the demo date trailer, and Steam Scream Fest 5, Valve's seasonal festival.

There is a small discrepancy in the Scream Fest dates. The October 19 press release mentions October 26 to November 2, while Inven Global's October 22 report says October 27 to November 3. LINE Games had not clarified the difference at the time of publication, so it is worth checking the event page on Steam before planning a session.

PC requirements

The Steam listing suggests a lightweight game, with 4 GB of free storage and support for Brazilian Portuguese. Here are the minimum and recommended specs:

LINE Games and the co-op horror boom

LINE Games is a publisher and developer based in Seoul, South Korea, and a subsidiary of LINE Yahoo. Its portfolio ranges from action RPGs to narrative adventures and multiplayer experiences, and QUIET is one of its own PC projects. CEO Bae Young-jin is cited as the source in the company's official announcements.

Co-op horror has been expanding since Lethal Company broke out in 2023. The genre combines short sessions, voice communication and unpredictability, features that work well in live streams and reaction videos. QUIET bets on a clear difference: alien ducks instead of generic monsters, and control over your own voice volume instead of just running away. It is an easy premise to explain and share, which helps organic promotion.

Competition, however, is fierce. Titles such as Content Warning, Phasmophobia and Don't Scream Together already occupy a space in the audience's imagination, and the demo needs to prove that the microphone mechanic is more than a gimmick. LINE Games will also have to manage the expectations created by the playtest: 271,000 players is a significant number for an independent game and raises the bar for server stability and enough content to keep groups playing.

For Brazilian players, there is an extra draw: Steam lists interface and subtitles in Brazilian Portuguese. The game is being sold as a PC experience, with no console plans announced, which fits the profile of players who follow co-op horror in Discord communities and Twitch streams.

What to watch in the final version

The demo arrives as an expanded proof of concept. Those who played the playtest will find a more stable build, with the community-requested lobby and the Duck Out mode, but the total number of stages, progression and final pricing remain unknown. LINE Games is expected to reveal those details over the coming months as the first-half 2027 launch window approaches.

Three points are worth watching in the demo: connection quality in four-player matches, microphone calibration in different environments and the variety of situations the Arcade mode offers. If those pillars work, QUIET could establish itself as a fun option for groups that enjoy shared scares. If the sound mechanic feels unfair or inconsistent, the comic effect could turn into frustration.

For now, the demo is free on Steam and the Epic Games Store. More information is available on the game's official website. Readers who follow the genre can also check out recent co-op bets such as A Game About Digging A Hole Together and Mycopunk, and keep up with games coverage on the portal.

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