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 · Pure Optimization
Procedural space exploration sandbox with crafting depth.

Optimization · Pure Optimization
The foggy psychological horror landmark where dread, puzzles, and exploration outweigh combat skill.
No Man's Sky leans Optimization (Pure Optimization); Silent Hill 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.
No Man's Sky
Light shooter and flight inputs
Silent Hill
Combat is deliberately clumsy and forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
No Man's Sky
Mostly solo, sparse PvP
Silent Hill
Monsters follow fixed behaviors
Silent Hill leans a little harder on variance, though the gap is small.
No Man's Sky
Procedural planets and loot
Silent Hill
First-run fog hides layout and puzzle information
No Man's Sky leans a little harder on optimization, though the gap is small.
No Man's Sky
Base, freighter, expedition progression
Silent Hill
Routes, puzzles, and endings fully converge on replay
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.