[4] His father, Wojciech Stroiński, was a trumpeter and pianist in the Royal Rag Jazz Band in Poland (1969–1981).

[5][6] Mikolai was born in Nairobi, Kenya, and grew up in Warsaw and Zalesie Górne near the Polish capital.

[9] He is known for scoring the video games The Vanishing of Ethan Carter (2014), The Witcher 3: Wild Hunt (2015), Metamorphosis (2020)[10][11] and other games, including Age of Empires IV (2021, French civilization) and Diablo Immortal (2022).

[1][16] In 2017, he composed the soundtrack for the opening ceremony of the Hannover Messe world trade fair in Germany.

[15][18] In 2024, Matt Leone wrote on the gaming website Polygon that he established himself as one of the strongest musical talents in the industry.