Building comparison
head to head
Castlevania: Harmony of DissonancevsPortal 2
Portal 2 asks more than Castlevania: Harmony of Dissonance, and the gap is optimization.
Castlevania: Harmony of Dissonance
Optimization · Pure Optimization
A speedy GBA metroidvania that doubles its castle into two mirrored layouts to untangle.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Castlevania: Harmony of Dissonance leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Castlevania: Harmony of DissonancePortal 2
Axis by axis
Execution4 vs 3
Castlevania: Harmony of Dissonance leans a little harder on execution, though the gap is small.
Castlevania: Harmony of Dissonance
Fast dashes make combat forgiving.
Portal 2
Portal placement requires some precision but timing is lenient.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania: Harmony of Dissonance
Scripted enemies and bosses.
Portal 2
No opponent; puzzles are static.
Variance1 vs 0
Castlevania: Harmony of Dissonance leans a little harder on variance, though the gap is small.
Castlevania: Harmony of Dissonance
Minor relic and drop luck.
Portal 2
Puzzles are deterministic with no randomness.
Optimization7 vs 9
Portal 2 leans clearly harder on optimization.
Castlevania: Harmony of Dissonance
Twin-castle navigation and spellbook combos carry it.
Portal 2
Solving the puzzle's logic IS the entire game.
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.