Building comparison
head to head
Line Rider 2: UnboundvsPortal 2
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.
Line Rider 2: Unbound
Optimization · Pure Optimization
A physics sandbox testing track design to guide a sledder along drawn lines.
Portal 2
Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.
Line Rider 2: Unbound leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Line Rider 2: UnboundPortal 2
Axis by axis
Execution3 vs 3
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Line Rider 2: Unbound
Drawing tracks has no twitch dimension
Portal 2
Portal placement requires some precision but timing is lenient.
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Line Rider 2: Unbound
Solo physics sandbox with no opponent
Portal 2
No opponent; puzzles are static.
Variance1 vs 0
Line Rider 2: Unbound leans a little harder on variance, though the gap is small.
Line Rider 2: Unbound
Deterministic physics, nothing random
Portal 2
Puzzles are deterministic with no randomness.
Optimization8 vs 9
Portal 2 leans a little harder on optimization, though the gap is small.
Line Rider 2: Unbound
Designing tracks that produce desired sled physics is the puzzle
Portal 2
Solving the puzzle's logic IS the entire game.
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.