This really was fun game to play, it give you the ability to try different combination of building placement and strategy to defend your tomb or base (i forgot what you called it in your tutorial XD)
i loved that you have the ablility to change building, deleting and selecting Keys in option menu.
even so it was hard to know that it was a tutorial in the start cause the text was black (you need to highlight a text with flashy color or make it bright or give it a color that can easily take your attention towards it) but when i noticed it and start to follow it, it made every thing easy and give me more understanding of how to play it and what i need to do next :)
also it follow the theme i think the rats were swarming to the cheese or the base :)
also i loved the feedback of the control when you click like the feedback telling you need more points and you can't build here and etc...
Also i noticed that every time you reload the game you have a different tile combination placement.
but i didn't love the sounds it is repeative and annoying if you keept hearing it while playing for long time :(
and i couldn't find an option to change sound in settings while playing, it is only from the menu of the game before you start :(
but nice game and GJ for making it in that short amount time :)