GameWikiJeff The Killer: Lost in the Nightmare Wiki
Game overview, documented mechanics, available platform information, and source-checked facts.
Checked 2026-10-19 · Independent game overview
What is Jeff The Killer: Lost in the Nightmare?
Jeff The Killer: Lost in the Nightmare is a horror-survival game that tells the story of a son and the killer, Jeff. The game is an FPS that combines elements of horror and survival. Players must navigate through a terrifying environment while avoiding Jeff's attacks. The game's story explores the relationship between the protagonist and the killer.
Confirmed gameplay mechanics
- Players must navigate through a terrifying environment while avoiding Jeff's attacks.
Game information
CrazyGames lists Mobile, Tablet, Desktop device support for Jeff The Killer: Lost in the Nightmare. Its listed platforms are Windows, Chrome OS, Linux, MacOS, iOS. Check the linked provider page for current availability and controls. Listed compatibility is a provider claim; it does not prove that every hardware or software configuration works.
CrazyGames recorded a user rating of 9 / 10 from 6,599 ratings when this page was checked. This is a provider snapshot, not a live rating or a GameWiki score.
- Developer
- Poison Games
- Genre
- Shooting Game
- Playable on
- Mobile, Tablet, Desktop
- Platforms listed by the provider
- Windows, Chrome OS, Linux, MacOS, iOS
- Provider release date
- 2020-12-28
Play and verify current details
Gameplay and catalog facts above come from this provider’s public game page or game metadata, checked on 2026-10-19. The discovery sitemap identifies a listed URL; it does not establish the game’s release date.
This independent overview was written from the linked source facts with AI assistance. It does not reproduce a walkthrough or claim coverage of unverified levels, controls, codes, or secrets. Game names belong to their respective owners.