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 smash-everything open-world survival game that is really a giant routing and upgrade puzzle.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.
Dysmantle leans Optimization (Pure Optimization); Fallout: New Vegas 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.
Dysmantle
Dodge-and-whack combat is simple but timing helps.
Fallout: New Vegas
Shooter inputs with VATS assist
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Dysmantle
Zombie-like enemies follow fixed mappable patterns.
Fallout: New Vegas
Scripted factions and enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dysmantle
Handcrafted world; little meaningful randomness.
Fallout: New Vegas
Some loot and crit RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dysmantle
Routing the map, tech tree and gear upgrades drive everything.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.