GTA III - Definitive Edition 100% Completion Guide & Checklist

Achieving 100% completion in Grand Theft Auto III is a true test of dedication. It requires you to conquer every mission, find every secret, and master every challenge Liberty City throws at you.

This guide and checklist cover everything you need to do to hit that coveted 100% in the Definitive Edition.

⚠️ CRITICAL: How to Avoid Missing 100%

Before you start, you MUST know that GTA III has several "missable" missions. If you complete certain story missions, other missions will become permanently unavailable, locking you out of 100% on that save file.

To be safe, always complete all available side missions before progressing the main story.

• Rule 1: Complete all Joey's and Luigi's missions before you play Salvatore's final mission, "Last Requests."

• Rule 2: Complete all Kenji Kasen missions (marked with a "K" on Staunton Island) before you play Donald Love's mission, "Waka-Gashira Wipeout!"

• Rule 3: Complete the Asuka Kasen mission "Two-Faced Tanner" before you play Donald Love's mission, "Grand Theft Aero."

• Rule 4: Complete the King Courtney payphone mission "Kingdom Come" before you play the final story mission, "The Exchange."

Pro-Tip: Make multiple save files, especially before starting missions for new "boss" characters like Salvatore Leone or Donald Love.

🏆 Rewards for 100% Completion

Unlike Vice City, GTA III does not have a single, massive reward for 100% completion (like 200 health or infinite ammo). The main reward is the in-game achievement/trophy "Is That All You've Got?"

However, the individual tasks required for 100% provide their own powerful, permanent rewards, which are listed below.

✅ The 100% Completion Checklist

To get 100%, you must complete every task in the following categories.

1. Main Story Missions (51 Missions)

You must complete all 51 main story missions, starting from Luigi's "Give Me Liberty" and ending with the final mission, "The Exchange." (Remember the missable mission rules above!)

2. Payphone Missions (17 Missions)

You must complete all 17 missions from the four payphone contacts.

• Marty Chonks (4 missions) - Portland, near Joey's Garage

• El Burro (4 missions) - Portland, Hepburn Heights

• King Courtney (4 missions) - Staunton Island, Liberty Campus

• D-Ice (5 missions) - Shoreside Vale, Wichita Gardens

3. Vehicle Missions (4 Total)

These are the classic side-vehicle missions. Some must be done in one go, while others are cumulative.

• Paramedic: Reach and complete Level 12 in a single run.

  • Reward: Unlocks Infinite Sprint. (This is best done on the first island, Portland, before gangs become hostile.)

• Vigilante: Kill 20 criminals on each island (60 total).

  • Reward: Unlocks 6 Police Bribes at your safehouse. (This does not have to be in a single run. You can track your progress in the stats.)

• Firefighter: Extinguish 20 fires on each island (60 total).

  • Reward: Unlocks the Flamethrower at your safehouses. (This also does not have to be in a single run.)

• Taxi Driver: Complete 100 total taxi fares.

  • Reward: Unlocks the Borgnine Taxi at the Borgnine Taxis depot in Harwood. (These do not have to be in a row.)

4. Off-Road Checkpoint Missions (4 Missions)

You must find and beat the time for all four hidden off-road challenges.

• A Ride in the Park (Staunton Island): In the Landstalker by the park's northeast entrance.

• Multistorey Mayhem (Staunton Island): In the Stallion in the Newport multi-story parking garage.

• Patriot Playground (Portland): In the Patriot on the Supa Save! supermarket roof in Portland View.

• Gripped! (Shoreside Vale): In the Patriot in a picnic area in Wichita Gardens.

5. RC "Toyz" Missions (4 Missions)

You must find and complete all four "Toyz n' the Hood" van missions.

• Diablo Destruction: (Portland, Hepburn Heights)

• Mafia Massacre: (Portland, Saint Mark's)

• Casino Calamity: (Staunton Island, Torrington)

• Rumpo Rampage: (Shoreside Vale, Wichita Gardens)

6. Import/Export Garages (3 Lists)

You must deliver all required vehicles to the two Import/Export locations.

• Portland Import/Export Garage: (16 civilian vehicles)

• Shoreside Vale Import/Export Garage: (16 civilian vehicles)

• Portland Docks Emergency Vehicle Crane: (7 emergency vehicles)

  • Reward: Delivering all vehicles unlocks vehicle icons at the garages, allowing you to spawn any of them.

7. Collectibles (140 Total)

You must find every hidden item and complete every stunt.

• Collect 100 Hidden Packages:

  • Reward: A new weapon (Pistol, Uzi, Grenades, Shotgun, Armor, Molotovs, AK-47, Sniper Rifle, M16, and Rocket Launcher) spawns at your safehouse for every 10 packages collected.

• Complete 20 Unique Stunt Jumps:

  • Reward: Cash for each jump.

• Complete 20 Rampages:

  • Reward: Cash for each rampage.