This was really well done! I was a little worried when I read the how to play screen since the concept is so morbid... I was scared it'd be like a horror game. But it was actually a lot of fun, and the morbidness of it was definitely balanced out by the adorable graphics.
No complaints gameplay wise! Everything ran perfectly smoothly. The interface was great. The music and sound design provided the perfect ambiance. No glitches, or any balance issues! Just... really polished over all!
If you were to do more with this game, I think the next step would be how to expand it. Something that came to mind is... what if instead of the goal being to buy the grave yard, it was to upgrade it? Like every time you reach a big number, you can add a big asset to the grave yard that improves it and changes up gameplay (like... idk, zombie repelling fountain. Break room, so the workers can recover health, etc.) but as the upgrades are added, the size of the grave yard increases too? That might add a lot of replay value to the game, and have people playing for days, even weeks to get the biggest grave yard!)
Really well done with this! Keep up the good work! With a little more expansion, I could totally see this making a great mobile game! :D
-Sasha