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
Tests physics contraption engineering against fixed puzzle levels.

Optimization · Pure Optimization
Short free sokoban puzzler about assembling a harem of sharply dressed demon girls.
Bad Piggies leans Optimization (Pure Optimization); Helltaker leans Optimization (Pure Optimization).
Bad Piggies leans a little harder on execution, though the gap is small.
Bad Piggies
Light steering of contraptions after building
Helltaker
One bullet-dodge finale aside, no dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
No opponent of any kind
Helltaker
No opponent
Bad Piggies leans a little harder on variance, though the gap is small.
Bad Piggies
Levels are fixed and repeatable
Helltaker
Fully deterministic puzzles
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
Contraption engineering for three-star solutions is the game
Helltaker
Each sokoban level has an exact move solution
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.