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
An oriental-fantasy grind MMORPG where upgrade luck and farming efficiency define progress.

Optimization · Pure Optimization
A Silk Road grind MMORPG whose trader-versus-thief economy sits atop classic build optimization.
Metin2 leans Optimization (Pure Optimization); Silkroad Online 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.
Metin2
Hack-and-slash grinding with simple inputs.
Silkroad Online
Auto-attack grinding asks little of the hands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metin2
Kingdom wars add light player-versus-player conflict.
Silkroad Online
Trader-thief-hunter PvP triangle adds some human prediction.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metin2
Upgrade chance rolls dominate gear progression.
Silkroad Online
Drops and alchemy enhancement rolls gate gear.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metin2
Farming spots, alchemy, and stat builds are solvable grind.
Silkroad Online
Skill mastery builds and trade route planning are the core.
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.