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

Execution · Practiced Mastery
A roguelike souls-like where adapting builds to randomized runs matters as much as combat skill.

Execution · Twitch Chaos
A permadeath bullet-hell MMO where dozens of players swarm gods and one mistake erases your character.
Elden Ring Nightreign leans Execution (Practiced Mastery); Realm of the Mad God leans Execution (Twitch Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Elden Ring Nightreign
precise dodge and attack timing required
Realm of the Mad God
Dodging dense bullet patterns with permadeath stakes
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Elden Ring Nightreign
bosses are fixed scripted patterns
Realm of the Mad God
Boss patterns are scripted; other players cooperate, not oppose
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Elden Ring Nightreign
run seeds and loot are randomized
Realm of the Mad God
Loot drops and event spawns gamble your character's fate
Elden Ring Nightreign leans a little harder on optimization, though the gap is small.
Elden Ring Nightreign
builds and run strategy are solvable
Realm of the Mad God
Gear tiers, class knowledge, and dungeon routing compound
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.