Cellbound

Cellbound is a fully-functional spreadsheet engine with a logic puzzle game built on top. I had time to build the spreadsheet engine, but not enough time to build many levels.

Spreadsheet cells support standard mathematical expressions and function calls, as well as references to individual cells and ranges of cells. Cell references use R1C1 reference style notation.

Cellbound was built for the Langjam Gamejam in late 2025.

Cellbound was inspired by Code Grid, and was used as an opportunity to experiment with possible architectural and syntactic changes to Code Grid before committing them to the main repository. It was built from scratch without referring to the Code Grid codebase, but lessons learned from Code Grid influenced the development of Cellbound.

Source code (with level solutions and SPOILERS) is available here: https://github.com/jstrieb/cellbound