Building comparison
head to head
Diplomacy is Not an OptionvsPortal
Diplomacy is Not an Option asks more than Portal, and the gap is variance.
Diplomacy is Not an Option
Optimization · Pure Optimization
A wave-defense RTS testing economic and defensive optimization against scripted hordes.
Portal
Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Diplomacy is Not an Option leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Diplomacy is Not an OptionPortal
Axis by axis
Execution3 vs 4
Portal leans a little harder on execution, though the gap is small.
Diplomacy is Not an Option
Fast unit micro helps but isn't the ceiling
Portal
Portal placement timing modest.
Reads1 vs 0
Diplomacy is Not an Option leans a little harder on reads, though the gap is small.
Diplomacy is Not an Option
Enemy hordes follow scripted waves, not adapting
Portal
No adversary modeling player.
Variance2 vs 0
Diplomacy is Not an Option leans clearly harder on variance.
Diplomacy is Not an Option
Some map and event variation, mostly fixed
Portal
Deterministic chambers; no randomness.
Optimization9 vs 8
Diplomacy is Not an Option leans a little harder on optimization, though the gap is small.
Diplomacy is Not an Option
Economy, defenses and army composition against scaling waves
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.