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.

Optimization · Pure Optimization
A flash puzzle about rolling a rectangular block into the hole without falling off.

Optimization · Pure Optimization
A perspective puzzle game where objects resize to match how they look when you set them down.
Bloxorz leans Optimization (Pure Optimization); Superliminal leans Optimization (Pure Optimization).
Superliminal leans a little harder on execution, though the gap is small.
Bloxorz
Deliberate moves; no time pressure.
Superliminal
Forced-perspective placement needs light spatial precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
No opponent at all.
Superliminal
No opponent; solo perspective puzzle
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
Levels are fixed and fully visible.
Superliminal
All rooms are deterministic
Bloxorz leans a little harder on optimization, though the gap is small.
Bloxorz
Each level is a literally solvable move puzzle.
Superliminal
Understanding forced-perspective growth rules to size objects into the correct shape
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.