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
Stealth adventure about a minstrel mouse sneaking through a rat-run fortress.

Optimization · Pure Optimization
CD Projekt's first RPG, a dark fantasy of monster contracts and morally gray choices.
Ghost of a Tale leans Optimization (Pure Optimization); The Witcher 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.
Ghost of a Tale
Light sneak-and-dash timing
The Witcher
Rhythm-click combat needs only loose timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ghost of a Tale
Guard rats patrol fixed mappable routes
The Witcher
Enemies follow fixed styles and weaknesses
Ghost of a Tale leans a little harder on variance, though the gap is small.
Ghost of a Tale
Quest items and routes hidden first time
The Witcher
Some unknown quest outcomes on first play
The Witcher leans a little harder on optimization, though the gap is small.
Ghost of a Tale
Costumes, routes, and quest-chain solutions
The Witcher
Signs, potions, and style matchups form the real game
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.