Igi 1: How To Unlock All Missions

IGI 1: How to Unlock All Missions

IGI 1, also known as IGI: Origins, is a popular first-person shooter game developed by Innerloop Studios and published by Codemasters. Released in 2000, the game has maintained a loyal fan base over the years, with players still actively seeking ways to unlock all its missions. If you're one of those players, you're in the right place. In this article, we'll guide you through the process of unlocking all missions in IGI 1.

Understanding the Game's Mission Structure

Before we dive into the unlocking process, it's essential to understand how the game's mission structure works. IGI 1 features a total of 20 missions, divided into four main categories: Training, Anti-Terrorist, Counter-Narcotics, and Counter-Terrorism. Each mission has its unique objectives, challenges, and rewards.

Unlocking All Missions

To unlock all missions in IGI 1, you'll need to complete specific requirements and use some clever tricks. Here's a step-by-step guide to help you unlock all missions:

Method 1: Manual Save File Edit (Works on PC)

  1. Navigate to your IGI save folder:
    C:\Program Files\I.G.I.-1\saves (or your install directory) igi 1 how to unlock all missions

  2. Look for a file named game.sav.

  3. Back it up first.

  4. Open game.sav with Notepad.

  5. Find the line starting with:
    MISSION_COMPLETE

  6. Change the numbers after it to:
    MISSION_COMPLETE 1 2 3 4 5 6 7 8 9 10 11 12 13 14

  7. Save the file.

Now all 14 missions will be selectable from the main menu.

Method 2: The "Hex Edit" Trick (If you can't download files)

If you are on a restricted computer and cannot download a save file, you can edit the existing one using a Hex Editor (like HxD).

  1. Go to your save folder (...\pc\save).
  2. Open qsave.sav with a Hex Editor.
  3. Look for the offset address 00000020 (Hex).
  4. Change the value to 0E (which represents the number 14 in hex).
  5. Save the file. The game will now think you have completed all 14 missions.

Method 2: Use a Trainer (No Editing)

I.G.I.-1: The Complete Guide to Unlocking All Missions (No Cheats Required)

By: veteran covert ops specialist

For those who grew up in the early 2000s, I.G.I.-1: I'm Going In remains a legendary title. Developed by Innerloop Studios and published by Eidos Interactive in 2000, this tactical first-person shooter was infamous for its punishing difficulty, realistic ballistics, and—most notably—its lack of a traditional save system during missions.

But another mystery has baffled players for decades: How do you unlock all missions without playing through the entire game again?

Unlike modern games with mission select menus unlocked from the start, I.G.I.-1 uses a linear progression system. You must complete missions sequentially. However, there are specific methods to bypass this. Below, I will break down every legitimate (and semi-legitimate) way to unlock all 14 missions, from built-in cheats to file modifications. IGI 1: How to Unlock All Missions IGI

Part 3: The Official Cheat Code (Built-in Unlock)

Yes, I.G.I.-1 includes a developer cheat that unlocks all missions instantly. This does not require external tools. Here is exactly how to do it:

Part 2: The Standard Method – Playing Linearly (And Why It’s Hard)

The intended way: beat a mission, and the next one unlocks automatically in the main menu’s “Mission Select” option.

The problem: I.G.I.-1 has no mid-mission saves. Die on Mission 11, and you restart Mission 11 from scratch. Many players never saw past Mission 7 (Ely Islands) due to the sheer difficulty and the infamous “one-shot-one-kill” enemy AI.

If you are stuck, consider these tips before cheating:

But if you’re tired of the grind, read on.

Part 5: Unlocking via Save Game Files (The "100% Complete" Method)

Another user-friendly method: download a 100% completed save file. Since I.G.I.-1 saves your progress in a single .sav file (usually slot1.sav), you can replace it. Navigate to your IGI save folder: C:\Program Files\I

  1. Search for "Project IGI 100% save file – all missions unlocked" (trusted community sites like GamePressure or IGI-Forum).
  2. Locate your save directory:
    • Windows XP/7: C:\ProgramData\Project IGI\Saves\
    • Windows 10/11 (GOG): %USERPROFILE%\Documents\Project IGI\Saves\
  3. Replace the existing savegame.sav with the downloaded one.
  4. Launch the game and click "Load Game" – then immediately back out to "Mission Select."

This method has the benefit of also unlocking all weapons in the armory at mission start (because the save file tracks completed side objectives).