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
A gravity-based block puzzle testing spatial logic to reach the goal.

Optimization · Pure Optimization
An underwater survival game won by methodical tech progression.
Crashmo leans Optimization (Pure Optimization); Subnautica 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.
Crashmo
Moving blocks is precise but not twitch-timed
Subnautica
Movement is slow; no precision demands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crashmo
Solo puzzle with no opponent to predict
Subnautica
Creatures follow scripted patrols; no adaptation.
Subnautica leans a little harder on variance, though the gap is small.
Crashmo
Puzzles are fixed; nothing random to manage
Subnautica
Resource node placement mildly randomized.
Crashmo leans a little harder on optimization, though the gap is small.
Crashmo
Solving the gravity-block puzzle is purely a logic solve
Subnautica
Tech progression and base routing solve the ocean.
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.