The potion system is also different. Instead of buying pots with life and mana, one acquires only the jars, which by the way have a specific amount of potion they support. In the city they are filled automatically, but outside of it you have to kill monsters to fill them.
One more thing for the game is the sound quality. The songs, well composed, combine with the dark environment and give a touch of terror and solitude to the game. Now just prepare the soul and immerse yourself in the dark world of Path of Exile.