Free & Open Source Espionage Games
19 free, open-source espionage games — real clones and remakes you can download, inspect the source of, and modify.
Active
Clone of Space Station 13
An open-source remake of SS13 built on a custom C# engine, with heavily moddable community servers.
Active
Clone of Teen Agent
An open-source engine reimplementation that lets classic point-and-click adventures and RPGs run on modern platforms.
Active
Active
Clone of Space Station 13
A free multiplayer RPG remake of the cult-classic Space Station 13, rebuilt outside the original BYOND engine.
Active
Clone of Space Station 13
An open-source, pre-alpha 3D revival of Space Station 13, built in Unity and expanding *beep's original SS3D demo.
Halted
Original game image
Original game imageClone of Space Station 13
A defunct, unfinished remake of Space Station 13 with original sprites replaced by placeholder art.
HaltedOriginal game image
Original game imageClone of Space Station 13
Griefly is an open-source C++14/Qt remake of Space Station 13, with separate client and server executables for Windows, Linux, and macOS.
Active
Clone of No One Lives Forever 2
An in-progress cross-platform source port built on the GPL LithTech engine, currently building the engine and No One Lives Forever 2.
Halted
Clone of Gravity Bone
The GPL-licensed source code for Brendon Chung's Gravity Bone (2008), built on the Quake II engine; art and audio assets aren't included.
Halted
Clone of Elite II
GLFrontier reimplements the Atari ST game Frontier, built on reverse-engineered code plus parts from the Hatari emulator.
Sporadic
Original game image
Original game imageClone of No One Lives Forever 2
LTJS is a work-in-progress source port of the LithTech Jupiter engine, currently supporting No One Lives Forever 2 (version 1.3).
Sporadic
Clone of No One Lives Forever 2
A Windows mod for No One Lives Forever 2 adding widescreen, anti-aliasing, a rewritten input system and crash fixes.
Archived
Active
Clone of Morpheus
A browser-playable modernization of Soap Bubble Productions' 1998 graphical adventure game Morpheus.
Halted
