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.

Optimization · Systems & Chaos
Puzzle adventure about coaxing a giant half-tame creature through ancient ruins.

Optimization · Systems & Chaos
A pixel-horror adventure about hunting a witch inside a nightmarish corporation.
The Last Guardian leans Optimization (Systems & Chaos); Yuppie Psycho leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
The Last Guardian
Slow climbing and platforming, very forgiving
Yuppie Psycho
Light stealth and chase sequences
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Last Guardian
Trico is willful but not modeling you adversarially
Yuppie Psycho
Office horrors are scripted, not adaptive
Yuppie Psycho leans a little harder on variance, though the gap is small.
The Last Guardian
Trico's unpredictable compliance adds noise
Yuppie Psycho
Unknown scripted events dominate a blind playthrough
Yuppie Psycho leans a little harder on optimization, though the gap is small.
The Last Guardian
Environmental puzzles with intended solutions
Yuppie Psycho
Puzzle solutions and item routing are fixed
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.