head to head
Detroit: Become Human asks more than A Bird Story, and the gap is variance.

Execution · Light / Casual
An interactive wordless short story with essentially no skill test.

Optimization · Light / Casual
A branching story that tests choice exploration more than any skill.
A Bird Story leans Execution (Light / Casual); Detroit: Become Human leans Optimization (Light / Casual).
Detroit: Become Human leans a little harder on execution, though the gap is small.
A Bird Story
Walking through scenes is the only input
Detroit: Become Human
Quick-time events demand only basic reaction timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
A Bird Story
No opponent of any kind
Detroit: Become Human
Branching script, no adaptive adversary
Detroit: Become Human leans clearly harder on variance.
A Bird Story
Wholly linear with nothing hidden mechanically
Detroit: Become Human
Branch consequences are hidden information until explored
Detroit: Become Human leans clearly harder on optimization.
A Bird Story
Nothing to solve; it is a told story
Detroit: Become Human
Flowchart completion is a light solvable puzzle
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.