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
Meditative sequel sailing and diving a hybrid ship through flooded ruins.

Optimization · Pure Optimization
Open-ended puzzles testing vocabulary-driven creative problem-solving more than any reflex.
FAR: Changing Tides leans Optimization (Pure Optimization); Scribblenauts Unlimited leans Optimization (Pure Optimization).
FAR: Changing Tides leans a little harder on execution, though the gap is small.
FAR: Changing Tides
Simple swimming, climbing, and sail handling
Scribblenauts Unlimited
Typing words is the only physical demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FAR: Changing Tides
Solo voyage with no adaptive opposition
Scribblenauts Unlimited
Puzzle NPCs are static requests, not minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FAR: Changing Tides
Set-piece obstacles, little randomness
Scribblenauts Unlimited
Puzzles are visible; nothing meaningful is hidden
Scribblenauts Unlimited leans a little harder on optimization, though the gap is small.
FAR: Changing Tides
Managing sail, engine, and fuel loops efficiently
Scribblenauts Unlimited
Finding objects that satisfy puzzle constraints is creative problem-solving
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.