I'll will go through how to beat the game in a text based manner for those having troubles at some points.

Each section talks about everything leading up to a specific boss.

first fight
I assume you can navigate to the first bad guy that wants your money. Just do as the game tells you. To beat him write the letters/words above your character to damage the bad guy. You'll lose your weapon/book if you get hit by projectiles.

After you've reached your apartment you can interact with things by going up to them and pressing the words that pop up.

To leave your house go up to the door and activate and write "Appia Street" and then "y" to confirm. There is no capital letters needed.

Once you arrive to your destination "Knock" on the door and get ready for your next fight.

it's not a terribly tough fight but the all fights can be tough when you both have to write and move your guy.

go to your computer after you get back to your apartment
you can write "Help" to see all the commands

if you don't wanna do that just write "Godle"
After that write "Titus Twister"

use the arrow keys to navigate to the second "2/4" post and press enter to learn the address of the place.

now you can go to the door and press the address "Ostiense Ave"

once you're there press the front door and after you are inside talk to the fat guy in front of the stairs/dance floor to "move" him.

BOSS BATTLE

Once you get back into your apartment you'll talk with magda a bit. Then go to your archive next to your computer and read about the "seitan beasts"

Then you'll learn about a band called "morbid wars". Then go to your computer and as with the previous time write "godle" and search for the band. Then choose the third "3/4" post to find out they are playing in rome at "Cassia Lane"

Go to the concert and talk to a few of the people there. After talking to two people or maybe the guy at the furthest to the left go to the "Generator" next to the sound guy and "kick" it.

then you just walk up to the head singer and you know the drill.

I'm not sure if you have to talk to your cleaning lady first but go onto your pc and press "Godle" and search for "Holy Church". then with the arrow keys navigate down and chose the fourth "4/4" post to find the name you're looking for. Then use your phone to get the address of the place called
"Prenestina BLVD" spelled like that.

When inside the church first touch the "holy water" source to the right. Then the "Bookshelf" behind the mother and lastly the "big door" on the left. Don't know if the specific ones matter it's just the ones i pressed.

talk to mom and then the battle begins.

after the battle press the middle part of the wall behind her between the bookshelfs

you'll have to battle head guard furius a bit but don't worry you're meant to lose the battle after he goes super sayian goat mode

then you wake up and have to go to "Termini Station"

navigate through the forest to the master and eat some pizza with chopsticks with him.
then go to "sleep" in your bed on the right

then leave the house and go north here you'll find your master and guess what.

go onto your computer and type "mail"
Then read the newest mail and you'll get the location "Coliseum"

once you are there go up north into the place. Then walk upwards and meet Caesar the thief again.

After completing the BOSS BATTLE, pick up the key and use the trap door above Furius.

you don't have to explore as you'll go all the places you can eventually.

go north up to a big gate that you oddly enough have the key to.
after answering the phone go back down and take the route to the left and climb the ladder.
then examine the big box in the top right corner and go back down the ladder.
then go to the right and to the library section.

the statue in the middle tells you to find the election year of the pope pious IV.

you can read about him on the bookshelf in the middle to the right and how his son became the pope after him. its a math thing. I'll write a similar riddle to the one in the game and the direct math.

Riddle: "pope pious IV was elected in 1265. he didn't want to do it anymore after three years and gave the title to his son. the son was only 2 years old at the time so they had to wait until he was 18 years of age"
Math: 1265+3+16=1284
Answer:1284 (There is an achievement for guessing wrong 3 times)

go back down the ladder and open the door after talking to magda.
the go inside the door and into the garden and talk to magda again.

now it's time for a very hard boss battle.

go up and follow the path and open the door.

follow larry through the door and guess what.

"climb" down using the chain in the middle

then just go straight until you can't go any further.
and you have yourself the last boss good luck