head to head
Death Stranding asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
Cargo-hauling odyssey where route planning and loadout matter most.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Death Stranding leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Portal leans a little harder on execution, though the gap is small.
Death Stranding
Balance and traversal inputs, modest demands.
Portal
Portal placement timing modest.
Death Stranding leans a little harder on reads, though the gap is small.
Death Stranding
BTs and MULEs scripted, predictable.
Portal
No adversary modeling player.
Death Stranding leans clearly harder on variance.
Death Stranding
Terrain, weather, BT spawns randomized.
Portal
Deterministic chambers; no randomness.
Portal leans a little harder on optimization, though the gap is small.
Death Stranding
Cargo loadouts, routes, structures highly solvable.
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.