To obtain 100% completion in Grand Theft Auto III, the player must complete all of the following tasks.

100% completion

Story missions

Portland

The Introduction
Luigi Goterelli
Joey Leone
Toni Cipriani
Salvatore Leone
8-Ball

Staunton Island

Asuka Kasen
Kenji Kasen
Ray Machowski
Donald Love
Asuka Kasen

Shoreside Vale

Catalina

Phone missions

Marty Chonks
El Burro
King Courtney
D-Ice

Side missions

Off-Road missions

RC vehicle missions

Vehicle missions

Import/Export

Collectibles

Rewards

Unlike most Grand Theft Auto games, there are no rewards for completing the game 100%.

Non-required tasks

  • Delivering 10 Securicars to a lockup at Portland Harbor

Video

Notes

  1. 1.0 1.1 1.2 Several missions that contribute to 100% completion can be permanently disabled if other missions are completed beforehand:
  2. 2.0 2.1 2.2 2.3 2.4 As the player progresses through the storyline, multiple gangs will become hostile to Claude or have their weaponry upgraded, making vehicle missions and Rampages extremely difficult. It is heavily advised to complete:
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