Tower Defense Game: Others Rely on Brute Force, but I Can Upgrade Infinitely

Tower Defense Unlimited Survival Team Upgrade The world is shrouded in fog and monsters are everywhere. In front of those terrifying creatures, humans are nothing but insignificant ants. The only safe zone is their personal room, and the only thing that protects them from the monsters outside is a door. Luofu was also brought into this world, but he was lucky enough to get an SSS-level profession: all-round mechanic. As long as he is in a relaxed state, he can gain omnipotence points to upgrade anything. His little friends can not only help him guard the room against monsters, but also generate omnipotence points for him. From a rotten wooden door, he upgraded it to an immortal divine door. From wooden bolt turret, upgrade to radiant turret. From zombie virus, upgraded to awakening serum. From ordinary zombies, upgrade to hell lord. His teammates have also been upgraded, gaining the powers that everyone desires. In this world full of despair and pain, Luofu lives happily as if he is enjoying a luxury resort. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.