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

Execution · Practiced Mastery
An open-world action game where traversal mastery and scripted combat counters carry play.

Optimization · Practiced Mastery
An isometric action RPG narrated as you play.
Assassin's Creed III Remastered leans Execution (Practiced Mastery); Bastion leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed III Remastered
combat counters and traversal need precision
Bastion
Action combat needs timing and aim.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed III Remastered
scripted enemy AI, no adaptation
Bastion
Enemies are scripted.
Bastion leans a little harder on variance, though the gap is small.
Assassin's Creed III Remastered
minor loot randomness
Bastion
Minor loot variance.
Bastion leans a little harder on optimization, though the gap is small.
Assassin's Creed III Remastered
skill trees and synchronization routes solvable
Bastion
Weapon and idol builds reward planning.
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.