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 · Systems & Chaos
Surveillance thriller where you decide which citizens' secrets to report to the state.

Optimization · Pure Optimization
A LucasArts sci-fi adventure where astronauts stranded on an alien world puzzle out its dead civilization.
Orwell: Keeping an Eye on You leans Optimization (Systems & Chaos); The Dig 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.
Orwell: Keeping an Eye on You
Reading and clicking documents only
The Dig
Point-and-click; no reflex demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Orwell: Keeping an Eye on You
Story characters are scripted, not adaptive
The Dig
Alien world is static; companions follow scripts.
Orwell: Keeping an Eye on You leans a little harder on variance, though the gap is small.
Orwell: Keeping an Eye on You
Truth is hidden until you uncover contradicting datachunks
The Dig
Alien machinery's purpose is hidden until experimented with.
The Dig leans a little harder on optimization, though the gap is small.
Orwell: Keeping an Eye on You
Choosing which evidence to upload steers fixed outcomes
The Dig
Machine puzzles have single fixed solutions to deduce.
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.