head to head
Neither is simply harder - they are hard in different places. King's Bounty: The Legend demands more variance; Portal 2 demands more execution.

Optimization · Pure Optimization
A turn-based tactical RPG where a treasure hunter leads stacked armies through hex battles across a fairy-tale world.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
King's Bounty: The Legend leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans clearly harder on execution.
King's Bounty: The Legend
Turn-based, no physical demands
Portal 2
Portal placement requires some precision but timing is lenient.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
King's Bounty: The Legend
Enemy stacks follow predictable AI scripts
Portal 2
No opponent; puzzles are static.
King's Bounty: The Legend leans clearly harder on variance.
King's Bounty: The Legend
Item shops and map seeds vary slightly
Portal 2
Puzzles are deterministic with no randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
King's Bounty: The Legend
Army composition and no-loss tactics dominate entirely
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.