Steam is constantly listing games on the platform entirely for free, and while many of these are persistent free-to-play offers, there are often limited-time promotions that you have to take advantage of quickly before they expire. One such title is only available for another 24 hours, and if you claim it before then, it’s yours to keep forever.

Steam currently has a new indie horror game Lost in Anomaly available to claim for free and keep forever if you grab it before Monday, February 16, 2026 at 1:00PM EST. It’s a simple and free horror game that’s short and sweet, and will apparently scare the life out of you if you’re susceptible to jump-scares.

Steam Gamers Have 24 Hours To Claim This Free Game

The Offer Ends On February 16

Lost in Anomaly is a very bare-bones indie horror game that’s currently available to claim and keep entirely for free, and players only have through the weekend to grab it. It’s a psychological horror experience from December 2024 that has likely slipped under your radar this week given several other free offers on Steam.

Steam is constantly adding new promotions on games such as this one, but often they are only free to try for a limited time. This is one of Steam’s unique free-to-keep offers that typically last through the weekend, and while there’s definitely likely to be a new listing next week, horror fans will want to snag Lost in Anomaly while they still have the chance.

Lost In Anomaly Looks Creepy, But Worth A Go

Brace For Some Jump Scares

Lost in Anomaly is a bite-sized horror experience that won’t take you too long to finish, assuming you don’t get too creeped out before then. Gameplay is estimated to take only about 75 minutes at most, with it being possible to finish the entire game in just 25 minutes. The main feedback from fans highlights the various jump-scare tactics deployed at the beginning of the experience, and if that’s your thing, Lost in Anomaly is for you.

The game is currently listed as an Early Access project, though development and updates on it seem to have tapered off over a year ago. It’s unclear if further updates or additional expanded content are planned for Lost in Anomaly, but it’s possible that this free-to-keep offer will reignite some interest and inspire devs to provide some progress updates.

Gameplay in Lost in Anomaly is pretty straightforward, and players simply “use spray to mark the anomalies. If you see a monster, run away.” You will “wake up on the 9th floor of an unknown building [and] the only way out is to detect and mark anomalies.” If you’re on the lookout for a unique and quick indie horror game to try out that won’t cost you a dime, be sure to grab Lost in Anomaly on Steam before Monday.