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.

Execution · Practiced Mastery
Open-world western about an outlaw forced to hunt down his old gang.

Optimization · Practiced Mastery
A storybook underwater metroidvania about a girl piloting a homemade submarine to find her father.
Red Dead Redemption leans Execution (Practiced Mastery); Song of the Deep leans Optimization (Practiced Mastery).
Red Dead Redemption leans a little harder on execution, though the gap is small.
Red Dead Redemption
Dead Eye softens but gunplay still wants aim
Song of the Deep
Gentle submarine handling and claw manipulation
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Red Dead Redemption
Multiplayer skirmishes add light human prediction
Song of the Deep
Scripted sea creatures
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Red Dead Redemption
Ambient events and spawns vary mildly
Song of the Deep
Unknown undersea map first dive
Song of the Deep leans a little harder on optimization, though the gap is small.
Red Dead Redemption
Mission approaches and economy are learnable
Song of the Deep
Environmental puzzles and upgrade routing carry the game
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.