Building comparison
head to head
Deus Ex: The FallvsPortal
Deus Ex: The Fall asks more than Portal, and the gap is variance.
Deus Ex: The Fall
Optimization · Pure Optimization
A mobile-born Deus Ex spin-off that condenses augment builds and route choice into smaller levels.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Deus Ex: The Fall leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Deus Ex: The FallPortal
Axis by axis
Execution3 vs 4
Portal leans a little harder on execution, though the gap is small.
Deus Ex: The Fall
Mobile-first controls keep mechanical demands low.
Portal
Portal placement timing modest.
Reads1 vs 0
Deus Ex: The Fall leans a little harder on reads, though the gap is small.
Deus Ex: The Fall
Scripted enemies in small encounter spaces.
Portal
No adversary modeling player.
Variance2 vs 0
Deus Ex: The Fall leans clearly harder on variance.
Deus Ex: The Fall
Compact levels hide little.
Portal
Deterministic chambers; no randomness.
Optimization7 vs 8
Portal leans a little harder on optimization, though the gap is small.
Deus Ex: The Fall
Augment upgrades and stealth-or-combat routing drive play.
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.