Project Igi 1 All Missions Unlock

Here’s a proper, professional-style write-up regarding unlocking all missions in Project I.G.I.: I’m Going In (the first game).

📦 Deliverable for users

File: IGI_All_Missions_Unlocker.exe (simple UI with one button)
Requirements: Windows 95/98/XP/7/10/11 (compatible mode for old OS)
Safety: No permanent changes – works on save file or memory only.

Popular Trainers for IGI 1:

• IGI Trainer v1.2 by Divine – Press F8 to unlock all missions instantly.
• Project IGI Plus 5 Trainer – Also adds infinite health and ammo.

Method 2: Memory patch during gameplay (trainer style)

Freeze the mission selection flag in memory to bypass locked missions. project igi 1 all missions unlock

Cheat Engine / Trainer logic:

• Find address for current_mission_unlock_mask (static address in IGI.exe).
• Write 0x3FFF (14 bits set) to that address.

Using C++ with WriteProcessMemory:

#include <windows.h>
#include <tlhelp32.h>
DWORD GetProcessIdByName(const char* procName) 
// Snapshot and find IGI.exe

int main() 
DWORD pid = GetProcessIdByName("IGI.exe");
if (!pid) return 1;
HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
// Address found via reverse engineering: 0x004A2F1C (example)
DWORD addr = 0x004A2F1C;
BYTE unlock = 0xFF;
WriteProcessMemory(hProc, (LPVOID)addr, &unlock, 1, NULL);
CloseHandle(hProc);
return 0;
 Popular Trainers for IGI 1: