Question 1

What was the budget of Thief: The Dark Project?

Accepted Answer

$3 million (as of July 1999; Source: Gamasutra / Game Developer).

Question 2

How many hours does it take to beat Thief: The Dark Project's main story?

Accepted Answer

12 hours (as of October 2026; Source: HowLongToBeat).

Question 3

What Metacritic score did Thief: The Dark Project get?

Accepted Answer

92/100 (as of October 2026; Source: Metacritic).

Question 4

How many people worked on Thief: The Dark Project?

Accepted Answer

over 19 people (as of July 1999; Source: Gamasutra / Game Developer).

Question 5

How long was Thief: The Dark Project in development (months)?

Accepted Answer

30 months (as of July 1999; Source: Gamasutra / Game Developer).

Thief: The Dark Project in numbers

What was the budget of Thief: The Dark Project?

Metric	Number	Date	Source
BudgetProject budget (approximate)	$3 million	July 1999	Gamasutra / Game Developer
Length (main story)HowLongToBeat, Main Story	12 hours	October 2026	HowLongToBeat
Metacritic scoreMetascore, PC version	92/100	October 2026	Metacritic
Team sizeFull-time developers (excluding contractors)	over 19 people	July 1999	Gamasutra / Game Developer
Development timeProject length (2.5 years)	30 months	July 1999	Gamasutra / Game Developer