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
Cozy castle-builder with optimization-friendly layouts.

Optimization · Pure Optimization
Turn-based tactics where movement combos turn battles into solvable puzzles.
Kingdoms and Castles leans Optimization (Pure Optimization); Mario + Rabbids Kingdom Battle 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.
Kingdoms and Castles
no reflex
Mario + Rabbids Kingdom Battle
Turn-based; no dexterity gate
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms and Castles
scripted viking raids
Mario + Rabbids Kingdom Battle
Enemy AI follows predictable rules
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms and Castles
raid and disaster timing
Mario + Rabbids Kingdom Battle
Hit chances are mostly deterministic percentages
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Kingdoms and Castles
layouts, taxes, defenses
Mario + Rabbids Kingdom Battle
Movement chains and team-jump routing are puzzle-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.