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 · Systems & Chaos
A children's hidden-object game about spotting items from rhyming riddles.

Optimization · Practiced Mastery
An atmospheric mood piece with light puzzles, testing patience more than skill.
I Spy Fantasy leans Optimization (Systems & Chaos); Superbrothers: Sword & Sworcery EP leans Optimization (Practiced Mastery).
Superbrothers: Sword & Sworcery EP leans a little harder on execution, though the gap is small.
I Spy Fantasy
Clicking found objects, no dexterity
Superbrothers: Sword & Sworcery EP
Simple timed parries are the only dexterity ask
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
I Spy Fantasy
No opponent to model
Superbrothers: Sword & Sworcery EP
No opponent - a mood piece, not a contest
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
I Spy Fantasy
Object placement varies but is fixed per scene
Superbrothers: Sword & Sworcery EP
Moon-phase secrets are hidden until discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
I Spy Fantasy
Systematic scanning to find riddle objects faster
Superbrothers: Sword & Sworcery EP
Light environmental puzzles with gentle solutions
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.