Cian has been making games on his own (or with small teams) since he was 9 years old. His first two games, released in quick succession, were Zelda fan-games, The Legend of Zelda: Ocarina of Seasons (a hybrid tribute to Ocarina of Time and Oracle of Seasons) and Jake's Quest (a game where Vegeta from Dragon Ball Z's secret son Jared has to save Hyrule... oh the ideas 9 year-olds have). Those games were made in ZQuest, a DOS-based Zelda 1 game maker.
From there, Cian fell in love with RPG Maker, moved onto DarkBASIC, followed by XNA, Unity, and more. You can see more of his previous work on his itch page.
In December 2023, Cian released POCKET MYSTERY EP, a GameBoy game he developed on his own over 18 monts for GameBoy Studio. Cian built the entire project on his own, including: