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

Execution · Practiced Mastery
A PS4 launch brawler starring a creature of relics that grows from tiny scrapper to building-sized titan.

Execution · Practiced Mastery
Colour-matching gunplay and platforming over a companion-build system.
Knack leans Execution (Practiced Mastery); ReCore leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Dodge timing matters as fragile small Knack
ReCore
Colour-matched shooting and dash-platforming need moderate aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Scripted goblin and robot patterns
ReCore
Robotic enemies follow fixed behaviour loops
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Relic chest contents vary slightly
ReCore
Dungeons and spawns are static
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Size mechanics and gadget crafting are simple systems
ReCore
Core swapping, companion builds and collectible routing reward planning
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.