Andrew Sum, also known as Andy Sum, JigxorAndy or simply Jigxor is one of the developers of "Crossy Road." While being one of the co-founders of Hipster Whale, Andy has also created games such as game of the year "420BLAZEIT" and "Dungeon Dashers."

As a child, Sum's dream was to become a game developer. He remembered always being fascinated with games, and at a very early age he began making games as a hobby. Once he started becoming increasingly adept with these creations, he made a definite decision to turn it into a career. He began his indie projects when, as he relates, “I had an itch nagging away at me to work on my ideas. There came a time when I just had to try and build them.”

Andy Sum is currently 24 years old and lives in Melbourne, Australia. He is a programmer and uses C# with Unity3D. He is studying a Master of Engineering (Software) at The University of Melbourne. Andy is currently working on Crossy Road and a turn-based dungeon crawler game for PC, called Dungeon Dashers. During the development of Crossy Road, he was responsible for the game and sound.

In his free time, he enjoys watching movies and playing games. He also enjoys coding prototpyes for new game ideas.

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