MIKA TAMMENKOSKI
Career History
Mika Tammenkoski is the Co-founder and Chief Executive Officer of Metacore, a mobile game company based in Helsinki and Berlin, building a portfolio of global hit games. Metacore is the studio behind Merge Mansion, a merge 2 game that has since its launch surpassed 60 million downloads and generated more than $700m in lifetime revenue, becoming one of the most commercially successful merge-genre titles on the market. The game’s cinematic marketing, featuring actors such as Kathy Bates and Pedro Pascal, has further strengthened its entertainment profile.
Tammenkoski co-founded the company in 2015 under the name Everywear Games, originally focused on smartwatch games before pivoting to mobile games in 2020. Under his leadership, the company has grown to over 280 employees and achieved EUR 154 million in revenue and profitability in 2024. Backed by an investment of EUR 170 million from Supercell, Metacore continues to expand its production capacity and live-operations expertise.
Tammenkoski brings over 25 years of experience in the games industry, having worked as a developer, investor and entrepreneur in studios like Remedy, Sumea and Digital Chocolate, where he worked with Supercell founder Ilkka Paananen.
About Metacore
Headquartered in Helsinki, Metacore is best known for Merge Mansion, a narrative-driven puzzle game that blends mystery storytelling with merge mechanics.
Metacore is actively creating new games built around story-led puzzle and merge mechanics. The company’s strategy emphasises sustainable growth, creative storytelling and marketing, as well as world-class player experience, reinforcing Metacore’s position as one of Finland’s leading mobile studios.
Merge Mansion