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

Execution · Pure Mechanics
Open-world racing testing car control and line discipline with light tuning underneath.

Execution · Pure Mechanics
Zero-gravity physics game about wrestling floppy cosmonaut limbs through space-station chores.
Forza Horizon 2 leans Execution (Pure Mechanics); Heavenly Bodies 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.
Forza Horizon 2
Racing lines, braking points and car control lead everything
Heavenly Bodies
Deliberately awkward limb-by-limb zero-g control
Forza Horizon 2 leans a little harder on reads, though the gap is small.
Forza Horizon 2
Drivatar AI mimics styles but stays effectively scripted
Heavenly Bodies
No opposition
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 2
Weather shifts grip slightly; courses are fully known
Heavenly Bodies
Fixed scenario layouts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 2
Car tuning and route knowledge reward preparation
Heavenly Bodies
Task order and clever anchor points
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.