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 · Practiced Mastery
A co-op puzzle platformer where each player walks a tiny robot by controlling its legs individually.

Execution · Practiced Mastery
Plannable stealth routing punctuated by precise ballistic marksmanship.
Biped leans Execution (Practiced Mastery); Sniper Elite III leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Biped
Per-leg stick control demands real coordination
Sniper Elite III
Ballistic long shots demand steady, compensated aim
Sniper Elite III leans a little harder on reads, though the gap is small.
Biped
Pure co-op; nothing adapts to you
Sniper Elite III
Enemy AI follows mappable alert and search routines
Sniper Elite III leans a little harder on variance, though the gap is small.
Biped
Puzzles are deterministic
Sniper Elite III
Patrol details and wind vary slightly per attempt
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Biped
Solving each two-robot puzzle is the core test
Sniper Elite III
Open maps reward planned routes, sound masking and relocation
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.