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.

Execution · Twitch Chaos
Kart racing blending drift execution with item RNG and pack positioning.

Execution · Twitch Chaos
Class-based battle royale gunfights shaped by loot luck and forge economy.
Mario Kart World leans Execution (Twitch Chaos); Realm Royale Reforged leans Execution (Twitch Chaos).
Realm Royale Reforged leans a little harder on execution, though the gap is small.
Mario Kart World
Drift charging, rail grinding and shortcut precision reward hands
Realm Royale Reforged
Gunfights and mobility still decide most engagements
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart World
Human racers bait items and contest lines in knockouts
Realm Royale Reforged
Human opponents adapt, diluted across a big lobby
Mario Kart World leans a little harder on variance, though the gap is small.
Mario Kart World
Item rolls and rubber-banding scramble any single race
Realm Royale Reforged
Loot drops and circle RNG steer every match
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart World
Course knowledge, shortcuts and item management converge with study
Realm Royale Reforged
Class picks and forge timing 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.