The best software games book ever written for your Commodore 64.
There are 30 different programs/games in this book that cover a wide range of game types and programming techniques. It feels like each program has been picked to show an example of different C64 programming tricks but in a game context. So we have hi-res graphics, we have arrays and variables, sprites, characters, smooth scrolling, collision detection and a host of other examples.
Another nice thing about this book is that each program has a short introduction giving the game controls and then a breakdown of what each part of the program is doing, an explanation of the variables used and grid designs for the sprites. This goes a long way to help you understand the flow of the program.
Every game program makes maximum use of the Commodore 64's sophisticated features, including it's innovative Sprite capability and excellent sound.
Source Code
https://github.com/TypeInBooks/books/tree/master/commodore/c64/gamesbook1