head to head
King Arthur II: The Role-Playing Wargame asks more than Portal 2, and the gap is variance.

Optimization · Pure Optimization
A fantasy RTS-RPG hybrid solved through army composition and tactical planning.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
King Arthur II: The Role-Playing Wargame leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
King Arthur II: The Role-Playing Wargame
Real-time battles need control but never twitch precision
Portal 2
Portal placement requires some precision but timing is lenient.
King Arthur II: The Role-Playing Wargame leans clearly harder on reads.
King Arthur II: The Role-Playing Wargame
Scripted campaign foes don't adapt to your habits
Portal 2
No opponent; puzzles are static.
King Arthur II: The Role-Playing Wargame leans clearly harder on variance.
King Arthur II: The Role-Playing Wargame
Battle rolls and morale add bounded randomness
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans a little harder on optimization, though the gap is small.
King Arthur II: The Role-Playing Wargame
Army composition, hero builds and battle planning decide wins
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.