Building comparison
head to head
Cookie ClickervsPortal
Neither is simply harder - they are hard in different places. Cookie Clicker demands more variance; Portal demands more execution.
Cookie Clicker
Optimization · Pure Optimization
The archetypal idle game where optimal purchase order is the entire skill.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Cookie Clicker leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Cookie ClickerPortal
Axis by axis
Execution0 vs 4
Portal leans clearly harder on execution.
Cookie Clicker
Clicking is optional past the early game
Portal
Portal placement timing modest.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cookie Clicker
No opponent
Portal
No adversary modeling player.
Variance2 vs 0
Cookie Clicker leans clearly harder on variance.
Cookie Clicker
Golden cookie timing randomness
Portal
Deterministic chambers; no randomness.
Optimization9 vs 8
Cookie Clicker leans a little harder on optimization, though the gap is small.
Cookie Clicker
Purchase order and ascension math are the game
Portal
Pure puzzle-solving optimization.
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.