Is there a PC port of

Yes. Project I.G.I. (2000) fully decompiled to readable C, every function checked against the original by slickdaddyy. Source is available to build, and it runs natively on PC rather than through an emulator.

Is the Project I.G.I.: I'm Going In PC port an emulator?

No. It's a native build of the game's code for PC (a decompilation, static recompilation or native port), so it runs like a PC game.

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Decompilation · Source · builds the full game

PROJECT I.G.I. IS NOW FULLY DECOMPILED: ALL 5,376 FUNCTIONS REWRITTEN IN READABLE C

Q: Do I need my own copy of

Yes. Your own installed copy of the EU release of Project I.G.I. and a C build toolchain; no game assets or original code are included.

Project I.G.I. (2000) fully decompiled to readable C, every function checked against the original

slickdaddyy's IGI-RE rewrites all of IGI.exe from Innerloop's 2000 PC shooter Project I.G.I.: I'm Going In as readable C: 5,376 of 5,376 functions, every one with a real name, and every global a typed variable at its original address. It is a functional decompilation: a rewrite doesn't need to compile to the same bytes but must behave exactly like the original, checked by 90,078 differential tests. The creator says all 14 missions play the same as the original and the source builds a game executable on its own. It was made with AI tools, which the README discloses. There is no prebuilt release yet: you build it and run it from an installed copy of the EU release.

Project I.G.I. (PC, 2000) → Windows (source build) · by slickdaddyy · 2026-10-25

You need: Your own installed copy of the EU release of Project I.G.I. and a C build toolchain; no game assets or original code are included.

How to play Project I.G.I.: I'm Going In on PC

Clone the repo and follow the README's Target and build sections.
Build the executable and place it in the folder of your installed EU copy.
Run it from there.

▶ Source & build guide

Get your copy

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