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

Optimization · Pure Optimization
A noir puzzle journey through the Land of the Dead solved by untangling the game's own surreal logic.

Optimization · Pure Optimization
A hidden-object adventure about searching scenes and solving fixed puzzles.
Grim Fandango leans Optimization (Pure Optimization); Mystery Case Files: 13th Skull leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Grim Fandango
Tank controls are awkward but never a skill test
Mystery Case Files: 13th Skull
Pointing and clicking, no twitch demand
Mystery Case Files: 13th Skull leans a little harder on reads, though the gap is small.
Grim Fandango
All characters follow scripted arcs; nothing adapts to the player
Mystery Case Files: 13th Skull
No adaptive opponent, puzzles are fixed
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grim Fandango
A few timed sequences add minor uncertainty but nothing critical
Mystery Case Files: 13th Skull
Hidden-object locations unknown until searched
Grim Fandango leans a little harder on optimization, though the gap is small.
Grim Fandango
Surreal multi-act puzzle chains demand patient causal reasoning
Mystery Case Files: 13th Skull
Solving puzzles and finding objects is the whole loop
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.