head to head
Baldur's Gate 3 asks more than X-COM: UFO Defense, and the gap is reads.

Optimization · Systems & Chaos
A D&D CRPG where build optimization and dice variance dominate every encounter.

Optimization · Systems & Chaos
Seminal 1994 strategy game mixing global base management with brutal turn-based alien squad combat.
Baldur's Gate 3 leans Optimization (Systems & Chaos); X-COM: UFO Defense leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Baldur's Gate 3
Turn-based; no input dexterity.
X-COM: UFO Defense
Turn-based; only inventory clicking
Baldur's Gate 3 leans clearly harder on reads.
Baldur's Gate 3
Companions/enemies scripted, not adaptive to player modeling.
X-COM: UFO Defense
Alien AI is scripted, never adaptive
Baldur's Gate 3 leans a little harder on variance, though the gap is small.
Baldur's Gate 3
Dice rolls, hidden checks, encounter RNG everywhere.
X-COM: UFO Defense
Hit rolls, random maps, and unseen aliens punish constantly
Baldur's Gate 3 leans a little harder on optimization, though the gap is small.
Baldur's Gate 3
Builds, party comp, action economy fully solvable.
X-COM: UFO Defense
Base economy, research order, and tactical doctrine are masterable
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.