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
Charming physics toy about a wobbly robot climbing a giant plant into the sky.

Execution · Light / Casual
Cheerful physics platformer about a kicking blob toppling a capitalist conspiracy.
Grow Home leans Execution (Practiced Mastery); Pikuniku leans Execution (Light / Casual).
Grow Home leans a little harder on execution, though the gap is small.
Grow Home
Procedural hand-over-hand climbing coordination
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.
Grow Home
No opposition of any kind
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.
Grow Home
World fixed; little hidden
Pikuniku
Short authored world with few surprises
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grow Home
Vine routing toward floating islands
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.