head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Execution · Pure Mechanics
Zero-gravity physics game about wrestling floppy cosmonaut limbs through space-station chores.

Execution · Pure Mechanics
A physics comedy about an octopus in a suit flailing through fatherhood without blowing his cover.
Heavenly Bodies leans Execution (Pure Mechanics); Octodad: Dadliest Catch leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Heavenly Bodies
Deliberately awkward limb-by-limb zero-g control
Octodad: Dadliest Catch
Deliberately clumsy limb controls are the whole challenge
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Heavenly Bodies
No opposition
Octodad: Dadliest Catch
No opponents, just suspicion meters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Heavenly Bodies
Fixed scenario layouts
Octodad: Dadliest Catch
Physics wobble adds slapstick unpredictability
Heavenly Bodies leans a little harder on optimization, though the gap is small.
Heavenly Bodies
Task order and clever anchor points
Octodad: Dadliest Catch
Simple objectives, little system depth
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.