Thief
37 Achievements
1,000
40-50h
Xbox 360
Predatory Drive
Finished the game in 15 hours or more
30
How to unlock the Predatory Drive achievement in Thief - Definitive Guide
Platyn
TrueSteamAchievements
TrueSteamAchievements
15 hours might seem like a lot, but if you're trying to 100% the game it is perfect. On my latest save i completed every additional job in the city, as well as client jobs, collected every collectible and did some thieving objectives in missions. Starting the final chapter i had 17 hours on my save, so there's plenty things to do in that amount of time.
Metabolic, XBA
This should come naturally if you take your time, complete all the side jobs and go for all the collectibles. You can check you total playtime in the Player Progression section of the menu. If you are approaching the end game and are still somewhat short you can leave your game idling for a few hours to make up the difference.
NOTE: If you do complete the main story short of the fifteen hour mark it has been confirmed that you can go back out into the city, finish up anything you need or simply idle to pass the time, then go back and complete Chapter 8 again to unlock the achievement.
