Goodreads 2 star "It was okay".
The book is about a kid who argues with an AI about what he eats for breakfast and uses a pelaton trainer to get into shape. At the same time, evil people persecute him for no good reason and he ends up accidentally married to a princess.
Yes, it is entertaining at points. I enjoyed a number of dungeon sequences, especially where the MC attempts to figure out the dungeon tricks. On the other hand, I found the cultivation sequences interminable and the worldbuilding incredibly weak.
The MC is a just a poor kid, isolated from his psycho mom and quickly losing his mentor as an AI offers him a place to stay and be safe. It's that ultimate safety and growth within that context that actually hurts the book the most because it armors him against any normal growth arc. The book tries to be Man vs Himself (cultivation) _and_ Man vs Man (tribal society without social contract) at the same time and never quite decides which story it is telling.
It takes a lot of conniving to try to get the book to have any palpable conflict or insecurity beyond "We are evil people acting evil and the system in this society is so corrupt that you will never get justice but we're also so ubiquitous that your (wrongly) blackened name will be spread far and wide across all the great reaches of the mighty Canada". It barely manages to do so right at the very end by threatening the MC's hideyhole in a convoluted setup. Points for effort.
So should you read this book? First, the tower in the title doesn't happen in any meaningful way. This is a medieval post-apocalyptic dungeon book not a tower book. Beat up orphan kid tries to better himself by being found and raised in a mansion with a butler, food, modern plumbing, cleaning service, in-house Apple Fitness Plus coach, Amazon storefront, and more. He even gets elective surgery to improve his identification skills. Not only is his mansion lush, we have hints that the thing is massively downgraded from its prime, where it presumably had a helipad, a suite of Porches and Ferraris in garages, an in-house masseuse, and more.
Second, the kid undergoes no measurable character growth beyond improving his mana channels. Woo. And he accidentally entangles another person into those mana channels in a way that binds them for life and makes sex an inevitability without consent -- all with the knowledge of his robo butler who is just a complete asshole about these things.
Third, the antagonists are laughably bad. Based on the Butler's ridiculous advice, the kid goes around town offering to use his Rolex watch to help delving teams for a fee and is surprised when he is not only rolled for this but that the teams smell that he has even more loot. By the end I was actually cheering on the antagonist team who resorted to some clever lawfare to sue him for parking his mansion in a dump that they bought.
Fourth, the MC makes a goblin friend because he's so sterling a character that he treats them well and knows their language through the Linguistic School of Deus Ex Machina. The goblin friend becomes a slave trope, happy to live in the mansion, watch tv, and cook for the young master when he's not out being Friday to the MC's Crusoe in clearing dungeons. The goblin has no inner life, no feature beyond his goblinoidness, and no interests outside of serving the MC.
I kind of want to stick around for book 2 to see how much of a trainwreck it is.