One Up Plus
An indie game studio based in Sydney, Australia, operating since 2012 as a husband and wife team.
Last updated September 2, 2026
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- Nov 4, 2026
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Overview
One Up Plus is an indie game studio based in Sydney, Australia. It was founded by Maggie Xu and Andrew Chia, and has been developing games across various platforms for over 13 years. The studio has released several games including Castillon, Dungeontop, Defend the Rook, Deliverance & Reign, Nine Realms Revolt, Spellslayer, and Luffi: Homebound.
History
One Up Plus is an indie game studio based in Sydney, Australia. It was founded by Maggie Xu and Andrew Chia, and has been operating since 2012. The studio has grown from a husband and wife team to an indie game studio with collaboration from many different talents. They have been developing games across various platforms for the last 13 years.
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