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

Optimization · Practiced Mastery
The reboot that turned Assassin's Creed into a loot-driven action RPG.

Optimization · Practiced Mastery
The sequel adds minion mounts and an evil empire to corral with your goblin hordes.
Assassin's Creed Origins leans Optimization (Practiced Mastery); Overlord II leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Origins
Hitbox-based combat needs timing but lenient.
Overlord II
Minion sweeps plus mounts need moderate control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Origins
Guard AI scripted, predictable.
Overlord II
Scripted empire enemies
Assassin's Creed Origins leans a little harder on variance, though the gap is small.
Assassin's Creed Origins
Loot rarity rolls present.
Overlord II
Deterministic encounters
Overlord II leans a little harder on optimization, though the gap is small.
Assassin's Creed Origins
Gear, abilities, target loadouts solvable.
Overlord II
Minion management and domination choices are 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.