head to head
Vandal Hearts II asks more than Portal 2, and the gap is reads.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
A tactical RPG testing positioning and turn prediction on a grid battlefield.
Portal 2 leans Optimization (Pure Optimization); Vandal Hearts II leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Portal 2
Portal placement requires some precision but timing is lenient.
Vandal Hearts II
Simultaneous-turn combat has no twitch input
Vandal Hearts II leans clearly harder on reads.
Portal 2
No opponent; puzzles are static.
Vandal Hearts II
Predicting AI move order matters but follows scripts
Vandal Hearts II leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Vandal Hearts II
Hit chances add bounded randomness
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
Vandal Hearts II
Unit positioning, builds and the prediction system win battles
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.