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

Optimization · Practiced Mastery
An open-world hero shooter where you hot-swap a squad of three agents to dismantle a supervillain organisation.

Execution · Practiced Mastery
Landmark scripted FPS following Gordon Freeman through the Black Mesa disaster.
Agents of Mayhem leans Optimization (Practiced Mastery); Half-Life leans Execution (Practiced Mastery).
Half-Life leans a little harder on execution, though the gap is small.
Agents of Mayhem
Triple-jump shooting demands moderate aim and movement
Half-Life
Combat aim and infamous platforming sections
Agents of Mayhem leans a little harder on reads, though the gap is small.
Agents of Mayhem
LEGION troops follow predictable scripts
Half-Life
Marines flank by script, not by modelling you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Agents of Mayhem
Procedural lair layouts add mild uncertainty
Half-Life
Set pieces surprise only on first run
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Agents of Mayhem
Agent-swap squad composition and gadget builds reward theorycrafting
Half-Life
Resource routing and encounter knowledge for speedruns
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.