head to head
Kingdom: New Lands asks more than Portal 2, and the gap is variance.

Optimization · Pure Optimization
A minimalist side-scrolling strategy where a mounted monarch drops coins to build walls against nightly greed raids.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Kingdom: New Lands leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Portal 2 leans a little harder on execution, though the gap is small.
Kingdom: New Lands
Just riding and coin-dropping under time pressure
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.
Kingdom: New Lands
Greed waves follow deterministic escalation
Portal 2
No opponent; puzzles are static.
Kingdom: New Lands leans clearly harder on variance.
Kingdom: New Lands
Island layouts and vendor spawns randomise
Portal 2
Puzzles are deterministic with no randomness.
Portal 2 leans a little harder on optimization, though the gap is small.
Kingdom: New Lands
Expansion order and economy timing decide survival
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.