Free & Open Source Horror Games
69 free, open-source horror games — real clones and remakes you can download, inspect the source of, and modify.
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Clone of Cataclysm
A turn-based survival game in a procedurally generated post-apocalyptic world, actively developed by over 1,000 volunteer contributors.
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Clone of Diablo
DevilutionX is a modernized port of Diablo and Hellfire built on the Devilution source reconstruction, adding engine fixes and QoL features.
Halted
Clone of Diablo
Devilution reconstructs Diablo's original 1996 source code from reverse-engineered debug symbols, preserving its original bugs intact.
Halted
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Clone of S.T.A.L.K.E.R.
A community-improved X-Ray Engine for S.T.A.L.K.E.R. with 64-bit support, bug fixes and Linux/macOS ports.
Platforms:Windows
Stars3,559
Updated11 days ago
LicenseUnknown
Release2014
Genre: FPS
Theme: Alternate Historical
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Clone of The 11th Hour
An open-source engine reimplementation that lets classic point-and-click adventures and RPGs run on modern platforms.
Sporadic
Clone of X-COM: UFO Defense
A playable open-source clone of UFO: Enemy Unknown and Terror from the Deep with extensive mod support.
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Clone of Dungeon Keeper
KeeperFX is an open-source expansion and remake of Dungeon Keeper for modern Windows, requiring the player's own original game files.
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Clone of Silent Hill 2
A large PC enhancement mod for Silent Hill 2 adding 60 FPS, improved audio, widescreen support, and dozens of bug fixes.
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Clone of X-COM: Apocalypse
An alpha reimplementation of X-COM: Apocalypse with modding, a skirmish mode and modern resolutions; it needs the original files.
Halted
Clone of Penumbra: Overture
Frictional Games' official GPLv3 source code release of Penumbra: Overture, the first Penumbra game.
Platforms:WindowsLinuxOSX
Stars565
Updated8 years ago
LicenseGPL-3.0
Release2010
Genre: Action
Theme: Horror
Sporadic
Clone of Dungeon Keeper
An open-source dungeon-building RTS inspired by Dungeon Keeper, now mostly archived in favour of the OpenDungeonsPlus fork.
Platforms:WindowsLinux
Stars503
Updated11 months ago
LicenseUnknown
Release2014
Genre: Simulation
Theme: Horror
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Clone of Resident Evil 2
An in-progress Resident Evil 2 engine reimplementation in Go and OpenGL that runs on the original game's data files.
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Clone of Higurashi: When They Cry Hou
07th-Mod's python-patcher is a cross-platform Python installer for 07th-Mod's fan mods for the Higurashi and Umineko visual novels.
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Clone of Silent Hill 3
An OpenGL and C++ engine remake of Silent Hill 3, buildable via CMake or Code::Blocks on Linux.
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Clone of Legacy of Kain: Soul Reaver
A decompilation of the original PlayStation Soul Reaver, ported to modern platforms including Windows, Linux, and consoles.
Platforms:WebWindowsLinux
Stars173
Updated2 years ago
LicenseUnlicense
Release2022
Genre: Action
Theme: Fantasy
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Clone of Alone in the Dark
A from-scratch reimplementation of the Alone in the Dark engine, requiring the original games' data files to run.
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Clone of Abuse
A fork of the Abuse SDL2 port adding OpenGL rendering, high-res images, cheat console, and Xbox 360 controller support for Windows.
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Clone of Postal
The official 1997 source code for Running With Scissors' Robotron-inspired isometric shooter POSTAL, released by the studio itself.
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Clone of Amnesia: The Dark Descent
A from-scratch Vulkan-based rework of Amnesia: The Dark Descent's engine with ray-traced global illumination, needing a retail copy.
Halted
Clone of Alien 3
This repository preserves Michael J Archer's complete 6502 assembly source code for the Commodore 64 version of Alien 3.
Halted
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