This paper describes the Liquid Metal entry in the 2013 ICFPT Design Competition. The Liquid Metal system provides a high-level language called Lime and a toolchain targeting FPGAs. Lime allowed us to use standard software development processes for programming, debugging, and performance tuning our FPGA design. We believe such iteration and refinement are far more challenging with low-level languages and design tools commonly used for FPGA development. © 2013 IEEE.