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 · Practiced Mastery
Gentle adventure about painting living murals to revive a polluted town.

Execution · Light / Casual
Cheerful physics platformer about a kicking blob toppling a capitalist conspiracy.
Concrete Genie leans Optimization (Practiced Mastery); Pikuniku leans Execution (Light / Casual).
Pikuniku leans a little harder on execution, though the gap is small.
Concrete Genie
Light painting motions and gentle platforming
Pikuniku
Floppy kicks and hops, gently imprecise
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Concrete Genie
No adversary; bullies are scripted scenes
Pikuniku
No adversary anywhere
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Concrete Genie
Little hidden beyond exploration
Pikuniku
Short authored world with few surprises
Concrete Genie leans a little harder on optimization, though the gap is small.
Concrete Genie
Finding paintable walls and puzzle solutions
Pikuniku
Simple puzzles with obvious 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.