From my research i have seen that usually within tower defence games the pause button really just stops everything from moving while the player can still see everything that is going on, in our game we initially used a black screen that said “paused” but we decided that this should be changed, so i expanded upon my peer Joseph’s, work of a pause menu, and i change it to a full working pause menu, even with options such as resume, controls, and back. i believe that this is better then the pauses in the other tower defence games i believe this because it gives the player more control over the game, rather then them just stopping things from moving, they can do things such as view the controls or quit the game.
here is a video of the changes made.
Evolution of Defence 