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
A chaotic comedy adventure whose elaborate multi-step puzzles test patience with absurd causal chains.
Bad Piggies leans Optimization (Pure Optimization); Deponia 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
Deponia
Point-and-click with no timing elements
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
Deponia
Comedy adventure with scripted characters throughout
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bad Piggies
Levels are fixed and repeatable
Deponia
Deterministic puzzle world with fixed solutions
Deponia leans a little harder on optimization, though the gap is small.
Bad Piggies
Contraption engineering for three-star solutions is the game
Deponia
Convoluted Rube Goldberg puzzle chains demand careful causal mapping
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.