Dreadcastle
A vampire adventure for the Commodore 64, in development. Oscar must cross the wilds, turn into a bat and reclaim his castle from the werewolf pack before sunrise.
From Dreadcastle

C64 Game Manual Series · Volume 3
C64 Assembly: Build a Complete C64 Vampire Adventure in Assembly for the Commodore 64
Full game
In preparation
This book is being written. Its page will offer it on every Amazon store as soon as it is published.
The code
The code will be published here together with the book.
Help Oscar, a young vampire, get home before sunrise! Cross the wilds, turn into a bat and reclaim Dreadcastle from the werewolf pack.
Dreadcastle is the third volume of the C64 Game Manual Series: build and personalise a complete Commodore 64 adventure in assembly, step by step. The game is in development, and the book will follow it.
The game in this book
A vampire adventure for the Commodore 64, in development. Oscar must cross the wilds, turn into a bat and reclaim his castle from the werewolf pack before sunrise.
From Dreadcastle