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Abyssal echoes is a game similar to soul knight, in which you will collect objects in a certain time limit and then with those objects you can craft weapons and bullets to face the enemies that chase you, in each wave they become stronger.
To move with the map: WASD.
To aim: Mouse.
To shoot and interact with the buttons: Left click.
That´s fine, I don't like farming and crafting but it's a important mechanic and it´s funny...for a bit of course.