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

Optimization · Pure Optimization
A harsh old-school MMORPG where full-loot PvP reads and deep hunting-route optimisation define survival.

Optimization · Mind & Math
The pioneering sandbox MMORPG of player economies, housing, and open PvP.
Tibia leans Optimization (Pure Optimization); Ultima Online leans Optimization (Mind & Math).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Tibia
Full-loot hunting and PvP require manual targeting and spell usage
Ultima Online
PvP timing and macro dexterity matter
Ultima Online leans a little harder on reads, though the gap is small.
Tibia
Open-world PvP and ganking involve reading real human opponents
Ultima Online
Player killers and traders adapt to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tibia
Rare loot drop rates drive extreme grind variance
Ultima Online
Open-world encounters and loot uncertainty
Tibia leans a little harder on optimization, though the gap is small.
Tibia
Vocation builds, spawn routing, and task management are extensively solved
Ultima Online
Skill builds and the player economy reward system mastery
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.