head to head
Garry's Mod asks more than Detroit: Become Human, and the gap is reads.

Optimization · Light / Casual
A branching story that tests choice exploration more than any skill.

Reads · Light / Casual
Source-engine sandbox whose community modes range from building to social deduction.
Detroit: Become Human leans Optimization (Light / Casual); Garry's Mod leans Reads (Light / Casual).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Detroit: Become Human
Quick-time events demand only basic reaction timing
Garry's Mod
Varies by mode; base sandbox is undemanding
Garry's Mod leans clearly harder on reads.
Detroit: Become Human
Branching script, no adaptive adversary
Garry's Mod
Social deduction modes like TTT involve humans
Garry's Mod leans a little harder on variance, though the gap is small.
Detroit: Become Human
Branch consequences are hidden information until explored
Garry's Mod
Hidden roles and player chaos in popular modes
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Detroit: Become Human
Flowchart completion is a light solvable puzzle
Garry's Mod
Contraption building rewards systems knowledge
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.