We make emotional mobile contents with "Breathing Characters"

Mobile Games

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Click To Details

Mad For Dance

Idle Clicker Game


Social Network Boardgame

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Click To Details

MATOKI : Space Puzzle

Puzzle Action Game

VILLAINS : Robot Battle Royale

Casual 5min Battle Royale

App Service

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Bird Letter

Character Emotional SNS


"Birdletter" is a second company established

by founders of CHALLABROS inc., a character specialized company.

Though we may not be a mega-corporation with blockbuster games,

we can assure that we make games with the best arts and charming characters of all.
Please expect more mobile games with our fabulous characters.



<Seoul Office>

7Floor, 286, Gangnam-daero, Gangnam-gu

Seoul, south KOREA

<Daejeon Office>

GA-302ho, 530, Youseong-gu

Daejeon, south KOREA

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