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.

Variance · Pure Chaos
Pachinko-puzzle hybrid where one lucky bounce triggers Ode to Joy.

Variance · Systems & Chaos
Excavating a town's hidden history through unguided, methodical deduction.
Peggle leans Variance (Pure Chaos); The Painscreek Killings leans Variance (Systems & Chaos).
Peggle leans a little harder on execution, though the gap is small.
Peggle
Aiming the launcher is gentle
The Painscreek Killings
Walking and photographing, nothing physical
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Peggle
No opposition whatsoever
The Painscreek Killings
An empty town - no one to outwit
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Peggle
Bounce physics chaos decides most shots
The Painscreek Killings
The entire mystery is hidden information to excavate
The Painscreek Killings leans a little harder on optimization, though the gap is small.
Peggle
Angle planning and power choice for setups
The Painscreek Killings
Cross-referencing keys, dates and letters is methodical deduction
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.