Building comparison
head to head
BloxorzvsPortal
Portal asks more than Bloxorz, and the gap is execution.
Bloxorz
Optimization · Pure Optimization
A flash puzzle about rolling a rectangular block into the hole without falling off.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Bloxorz leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
BloxorzPortal
Axis by axis
Execution1 vs 4
Portal leans clearly harder on execution.
Bloxorz
Deliberate moves; no time pressure.
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.
Bloxorz
No opponent at all.
Portal
No adversary modeling player.
Variance0 vs 0
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
Levels are fixed and fully visible.
Portal
Deterministic chambers; no randomness.
Optimization8 vs 8
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bloxorz
Each level is a literally solvable move puzzle.
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.