The greatest book on demonology has fallen into your hands. Decipher the secret names of demons and subjugate them to your will.

At each level, you need to find signs that, when combined, will produce the desired symbol. This must be done using the minimum number of moves.

The symbols are added up according to the xor principle. Examples:

+ =

+ =

The sequence of signs found is the key to controlling the demon, the description of which is given at the beginning of the level. With each completed level, your character becomes stronger.



In each new attempt, the symbols change, they need to be selected again.

The levels are divided into 3 chapters. Each chapter has 18 levels. After completing the chapters, additional features will open up that will make the passage easier.


Demons have always existed. Mentions of them are present in the earliest chronicles. Powerful entities hid in the shadows of humanity and influenced it. Small communities grew into huge cults, because of which the Inquisition burned entire cities.

Demons, as a rule, pursue their own goals, but there are special rituals and spells that can force a demon to appear to the caster and carry out the order. Such binding spells bestowed great power, but communication with demons sooner or later destroyed any sorcerer who resorted to forbidden magic.

There were legends about a great master who managed to learn the names and symbols of demons, which allowed him to use them without harm to himself. He wrote down the results of his research in a special book, which he called Ars Demonium Invocatum.

Many hunters died trying to get the book, but its traces, like the traces of the sorcerer himself, were lost in history.

You have luck, Ars Demonium Invocatum is in your hands. Now all that remains is to decipher the book and gain knowledge that grants unlimited power.