head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Practiced Mastery
An isometric action RPG narrated as you play.

Optimization · Practiced Mastery
Breezy open-world adventure romping through Greek myth puzzles and monsters.
Bastion leans Optimization (Practiced Mastery); Immortals Fenyx Rising leans Optimization (Practiced Mastery).
Bastion leans a little harder on execution, though the gap is small.
Bastion
Action combat needs timing and aim.
Immortals Fenyx Rising
Dodge timing and aerial combos
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bastion
Enemies are scripted.
Immortals Fenyx Rising
Mythic beasts follow fixed movesets
Bastion leans a little harder on variance, though the gap is small.
Bastion
Minor loot variance.
Immortals Fenyx Rising
Little randomness in the open world
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bastion
Weapon and idol builds reward planning.
Immortals Fenyx Rising
Vault puzzles, gear builds, and stamina routing
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.