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

Optimization · Pure Optimization
A minimalist puzzle platformer about deducing box-chain solutions.

Optimization · Pure Optimization
Atmospheric sci-fi puzzler about swapping consciousness between your own clones.
BoxBoxBoy! 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.
BoxBoxBoy!
Box creation and movement need no precision
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.
BoxBoxBoy!
Solo puzzle game with no opponent
The Swapper
No opponent exists
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
BoxBoxBoy!
Puzzles fully deterministic, nothing random
The Swapper
Deterministic rooms with no hidden state
BoxBoxBoy! leans a little harder on optimization, though the gap is small.
BoxBoxBoy!
Deducing box-chain shapes to clear obstacles 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.