An interesting take on tower defense. I really like the old-school art and the isometric view. It's got a complete game loop and a simple premise to understand. I really like the quality-of-life features, like being able to toggle the audio and the slider for game speed. Great job overall and the family collaboration aspect is really nice.
Some criticisms:
- Clarify which plants distract which pests and that gofers spawn randomly to consume a plant. I also think it's a bit harsh that the gofers can consume the mana plants.
- The mouse's colour is the same as the path tile colour, making it hard to distinguish the two.
- Tiles that are not edge-adjacent to the path (i.e. diagonal vertex-adjacent tiles or two edge-adjacencies over) are unreachable by the pests. Either make them reachable or do not allow placement of plants on them.