Mika
Zeller
Mika Zeller (born 14 October 2000), known online as HighMiZe, is a German entrepreneur, content creator, former competitive esports player and independent game developer.
He founded the fashion brand Endless Fashion in 2024 and has produced online content since his teenage years. His work spans fashion, streaming, digital media and independent creative projects.
FounderContent creatorGame developerContent creation
First YouTube channel
At about thirteen, Zeller began uploading German-language trivia videos under the name PsYcho. The early videos were produced without showing his face.
Gaming content
He later created a Counter-Strike: Global Offensive channel that approached 10,000 subscribers before its termination following strikes that he disputes. He subsequently returned to YouTube and began streaming on Twitch.
IRL streaming
During his first visit to the United States in February 2022, his IRL streams were sponsored by 7-Eleven.
HighMiZe channels
After several periods of intermittent activity, Zeller returned to a more regular content schedule in December 2025. His channels cover gaming, livestreams, reactions and other entertainment formats.
The name HighMiZe combines the title of a favourite song at the time, Highest in the Room, with Mi from Mika and Ze from Zeller.
Early life
Zeller was born in Gelsenkirchen, North Rhine-Westphalia, and grew up in the surrounding area. His interest in video games began in childhood, partly influenced by his father, who played games and worked for Activision Blizzard. His early gaming interests included Pokémon Emerald, Mario Kart, Dofus, RuneScape and Minecraft.
At approximately eleven years old, he wrote a small cookbook featuring recipes he had devised, inspired by cooking programmes featuring Gordon Ramsay. He also developed an early interest in acting, creative work and independent projects.
Zeller completed his Abitur in 2021 and later began studying social work. He has discussed living with ADHD and its influence on how he approaches work and creative projects.
Esports career
Zeller played competitive Team Fortress 2 and Counter-Strike: Global Offensive before joining the competitive Paladins scene. He competed for Nemesis E Sports in 2020, primarily playing Maeve and Bomb King.
According to his account of his competitive records, he reached first in Europe and third worldwide on Maeve, and first in Germany and fourth in Europe on Bomb King. He also reports a third-place finish at the MLG Summer 2020 Cup with Nemesis.
In late 2020, he signed a contract with mousesports, but the agreement was rescinded following the announcement that the Paladins esports circuit would end. He did not compete for mousesports.
He later returned to competitive gaming recreationally and reached Grandmaster 2 in Overwatch 2.
Endless Fashion
In May 2024, Zeller founded Endless Fashion, building on earlier experience creating clothing for his online audience.
The name reflects the idea that an individual garment can be styled in countless ways. The brand focuses on personal expression and aims to make high-quality fashion more accessible without the pricing associated with some luxury labels.
Fashion and entrepreneurship form the central focus of his professional work. He has also worked independently in web development and search engine optimization.
Game development
Alongside his fashion business and online work, Zeller develops video games as an independent creative pursuit. He began developing games after imagining a game he wanted to play that did not yet exist. He later chose to work on smaller projects to build experience before continuing with the larger, unreleased concept.
A retail management simulation set in a fictional Colorado town in 1995, combining boutique operations with exploration and progression.
An idle game focused on fashion and business progression.
His projects are developed in Unity, with programming, game design and visual production handled independently. The projects are presented here as works in development rather than released titles.
Personal life
Zeller's interests include fashion, art, cooking, film, music, travel, cars and video games. He has spoken about his experiences with ADHD and depression, including their influence on his education and periods away from online content creation.
He previously worked in hospitality, including at a Michelin-starred restaurant. He has also reported winning a cooking competition in North Rhine-Westphalia around 2022. Zeller is engaged.
Photo archive
Selected images from the HighMiZe collection.
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