head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Pure Optimization
An auto-battling deckbuilder about building a loop to defeat the Lich.

Optimization · Pure Optimization
Faithful X-COM successor managing a global war against alien invasion.
Loop Hero leans Optimization (Pure Optimization); Xenonauts leans Optimization (Pure Optimization).
Loop Hero leans a little harder on execution, though the gap is small.
Loop Hero
Autobattler, almost no inputs.
Xenonauts
Turn-based; no physical demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Loop Hero
Enemies follow scripts.
Xenonauts
Alien AI follows consistent behavior rules.
Xenonauts leans a little harder on variance, though the gap is small.
Loop Hero
Card draws and loot drops randomize.
Xenonauts
Hit rolls and unseen alien positions punish certainty.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Loop Hero
Deck and tile placement reward deep optimization.
Xenonauts
Air war, economy and squad doctrine decide campaigns.
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.