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

Optimization · Pure Optimization
Tests physics contraption engineering against fixed puzzle levels.

Optimization · Pure Optimization
Atmospheric sci-fi puzzler about swapping consciousness between your own clones.
Bad Piggies leans Optimization (Pure Optimization); The Swapper 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.
Bad Piggies
Light steering of contraptions after building
The Swapper
Light platforming; precision rarely gates progress
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
No opponent of any kind
The Swapper
No opponent exists
Bad Piggies leans a little harder on variance, though the gap is small.
Bad Piggies
Levels are fixed and repeatable
The Swapper
Deterministic rooms with no hidden state
The Swapper leans a little harder on optimization, though the gap is small.
Bad Piggies
Contraption engineering for three-star solutions is the game
The Swapper
Clone-placement puzzles have fixed solvable 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.