head to head
Recettear: An Item Shop's Tale asks more than Portal 2, and the gap is variance.

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

Optimization · Pure Optimization
Item-shop management sim where you set prices to pay off a fairy's loan.
Portal 2 leans Optimization (Pure Optimization); Recettear: An Item Shop's Tale leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
Portal placement requires some precision but timing is lenient.
Recettear: An Item Shop's Tale
Light action combat in optional dungeon crawls.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
No opponent; puzzles are static.
Recettear: An Item Shop's Tale
Customer haggling follows mappable scripted tolerances.
Recettear: An Item Shop's Tale leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
Recettear: An Item Shop's Tale
Market price swings and dungeon loot rolls.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
Solving the puzzle's logic IS the entire game.
Recettear: An Item Shop's Tale
Pricing margins, stock, and debt schedule are nearly solvable.
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.