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

Optimization · Pure Optimization
Procedural space exploration sandbox with crafting depth.
Dysmantle leans Optimization (Pure Optimization); No Man's Sky leans Optimization (Pure Optimization).
Dysmantle leans a little harder on execution, though the gap is small.
Dysmantle
Dodge-and-whack combat is simple but timing helps.
No Man's Sky
Light shooter and flight inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dysmantle
Zombie-like enemies follow fixed mappable patterns.
No Man's Sky
Mostly solo, sparse PvP
No Man's Sky leans a little harder on variance, though the gap is small.
Dysmantle
Handcrafted world; little meaningful randomness.
No Man's Sky
Procedural planets and loot
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.
No Man's Sky
Base, freighter, expedition progression
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.