Question 1

How many copies has Mirror 2: Project X sold?

Accepted Answer

4.2 million copies (as of March 2023; Source: KAGAMI WORKs).

Question 2

What was Mirror 2: Project X's all-time peak of concurrent players on Steam?

Accepted Answer

33,035 players (as of January 2022; Source: SteamCharts).

Question 3

How many hours does it take to beat Mirror 2: Project X's main story?

Accepted Answer

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

Question 4

How many hours does it take to 100% Mirror 2: Project X?

Accepted Answer

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

Mirror 2: Project X in numbers

How many copies of Mirror 2: Project X (DLC included) had sold by March 2023?

Metric	Number	Date	Source
Copies soldCopies sold, DLC included (per the studio)	4.2 million copies	March 2023	KAGAMI WORKs
Peak concurrent players (Steam)All-time Steam peak (SteamCharts)	33,035 players	January 2022	SteamCharts
Length (main story)HowLongToBeat, Main Story	3 hours	October 2026	HowLongToBeat
Length (100%)HowLongToBeat, Completionist	9 hours	October 2026	HowLongToBeat