head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Light / Casual
Cyberpunk horror where a detective hacks the memories of the dying.

Optimization · Light / Casual
A short narrative drive testing curiosity about branching endings, not driving skill.
Observer leans Optimization (Light / Casual); Wheels of Aurelia leans Optimization (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Observer
Walking with brief stealth segments
Wheels of Aurelia
Steering is loose and outcomes barely depend on it
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Observer
The stalker sequence is scripted
Wheels of Aurelia
Dialogue characters are authored, not adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Observer
Unknown story branches and apartment secrets
Wheels of Aurelia
Sixteen endings are hidden until routes are replayed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Observer
Investigation logic and clue piecing
Wheels of Aurelia
Mapping which choices and routes trigger endings is light puzzle work
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.