Building comparison
head to head
Mini MetrovsPortal
Neither is simply harder - they are hard in different places. Mini Metro demands more variance; Portal demands more execution.
Mini Metro
Optimization · Pure Optimization
Minimalist transit puzzle; route topology under spawning pressure.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Mini Metro leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Mini MetroPortal
Axis by axis
Execution2 vs 4
Portal leans clearly harder on execution.
Mini Metro
light real-time line-drawing
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.
Mini Metro
no adversary
Portal
No adversary modeling player.
Variance5 vs 0
Mini Metro leans clearly harder on variance.
Mini Metro
station spawn pattern
Portal
Deterministic chambers; no randomness.
Optimization9 vs 8
Mini Metro leans a little harder on optimization, though the gap is small.
Mini Metro
line topology and routing
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.