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.

Optimization · Pure Optimization
Combat-focused Infinity Engine RPG built on D&D party optimization.

Optimization · Pure Optimization
The genre-defining 1993 space 4X of galactic conquest, diplomacy and ship design.
Icewind Dale leans Optimization (Pure Optimization); Master of Orion leans Optimization (Pure Optimization).
Icewind Dale leans a little harder on execution, though the gap is small.
Icewind Dale
Pausable real-time needs little dexterity
Master of Orion
Pure turn-based menus
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Icewind Dale
Enemies follow fixed AI scripts
Master of Orion
AI emperors are predictable policy machines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Icewind Dale
D&D dice rolls and random loot tables
Master of Orion
Random galaxies and tech trees vary each game
Master of Orion leans a little harder on optimization, though the gap is small.
Icewind Dale
Party builds, spell prep, and encounter knowledge
Master of Orion
Tech beelines and ship design dominate outcomes
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.