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 physics puzzle-platformer about swapping three heroes to improvise solutions.

Optimization · Pure Optimization
A minimal physics puzzle about chaining explosions to reach the goal.
Trine leans Optimization (Pure Optimization); Zup! X leans Optimization (Pure Optimization).
Trine leans a little harder on execution, though the gap is small.
Trine
Physics platforming and wizard-box stacking need dexterity
Zup! X
Minimal dexterity to trigger explosions
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Trine
No opponent; puzzles are fixed
Zup! X
Solo - no opponent to model
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Trine
Levels are static and fully visible
Zup! X
Deterministic physics puzzles, no hidden randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Trine
Choosing the right hero and contraption solves each obstacle
Zup! X
Finding the right explosion sequence is the puzzle
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.