If you want some cheap and useful Unity assets, check out my projects.

For really good joysticks: https://tebiondl.itch.io/the-best-joysticks

For a shop system: https://tebiondl.itch.io/shop-system

For 2D weapon Logic: https://tebiondl.itch.io/2dweaponlogic

For a very simple Dungeon Generator: https://tebiondl.itch.io/2d-dungeon-generator

For cool pixel art swords: https://tebiondl.itch.io/pixel-art-swords