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 surreal escape room testing deduction of hidden item-and-puzzle chains.

Optimization · Pure Optimization
A dark adventure game about a suicidal woman granted immortality to hunt five psychopaths.
Cube Escape: Birthday leans Optimization (Pure Optimization); The Cat Lady leans Optimization (Pure Optimization).
The Cat Lady leans a little harder on execution, though the gap is small.
Cube Escape: Birthday
Pointing and clicking, zero dexterity
The Cat Lady
Side-scrolling adventure controls require no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cube Escape: Birthday
Fully scripted scenes, nothing adapts
The Cat Lady
The Parasites are story antagonists, not adaptive opponents
Cube Escape: Birthday leans a little harder on variance, though the gap is small.
Cube Escape: Birthday
Puzzle logic is hidden until items are discovered
The Cat Lady
Mild unknowns in puzzle solutions on a blind playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cube Escape: Birthday
Each surreal puzzle has one fixed solvable answer
The Cat Lady
Adventure-game puzzles have fixed discoverable 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.