Hold left mouse button to move, hold left mouse button to attack.
You're encouraged to make ranged attacks but due to the zoom level most times you can't see what's coming until it's htting you.
99% of the loot is useless & sold for gold which is also useless. You'll pick up some good armour, level-upgrade some basic active & passive abilities, and be set for the rest of the game. You also get enough XP to unlock almost every skill upgrade so you don't have to choose wisely, and if you die you're resurrected instantly to carry on.
The whole thing is so bland & so generic, the story is bog standard fare & the ending is equally unengrossing. Enemies are mostly the same throughout despite 4 seasonal flavours to the map, and there's only a couple of places where you think 'oh that looks nice'.
If this game were on an ECG it would be close to flatline. Just a few hours of holding the left mouse button,
Not worth the time or the money, buy something else. If you already own it, play something else. Anything else.