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 perspective puzzle game where objects resize to match how they look when you set them down.

Optimization · Pure Optimization
Atmospheric sci-fi puzzler about swapping consciousness between your own clones.
Superliminal 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.
Superliminal
Forced-perspective placement needs light spatial 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.
Superliminal
No opponent; solo perspective puzzle
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.
Superliminal
All rooms are deterministic
The Swapper
Deterministic rooms with no hidden state
The Swapper leans a little harder on optimization, though the gap is small.
Superliminal
Understanding forced-perspective growth rules to size objects into the correct shape
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.