head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Sequel renovation sim with sandbox building.

Optimization · Pure Optimization
A career sim about diagnosing, repairing and assembling customer PCs on a budget.
House Flipper 2 leans Optimization (Pure Optimization); PC Building Simulator 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.
House Flipper 2
Light click-and-place inputs
PC Building Simulator
Careful part assembly is procedural, not twitchy.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
House Flipper 2
No adaptive opponents
PC Building Simulator
No opponent; clients issue fixed job tickets.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
House Flipper 2
Sandbox and story variation
PC Building Simulator
Job orders vary slightly day to day.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
House Flipper 2
Renovation workflow and budget management
PC Building Simulator
Diagnosing builds and budgeting parts for jobs is the whole 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.