This the full Unity project to a game that is currently selling quite well on Steam. The only part that is missing is the Steam integration and high-score table, everything else is completely intact.
A publisher approached me and asked if I would mind if they tried to put it in front of Valve. I was warned it can take up to 3-4 weeks for an answer and Valve responded in two days. My intention from the beginning was to release the source code on day one - which we did!
Please can you provide steps to change the 2d sprites? How did you pack them with their size/position within the sheet being referenced by the project code?