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
A test of fast, precise shooting and map navigation against scripted but relentless enemies.

Execution · Pure Mechanics
A melee-heavy sci-fi horror game where reactive parry timing and dodge reads dominate over system depth.
Doom (1993) leans Execution (Pure Mechanics); The Callisto Protocol 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.
Doom (1993)
Precise movement and shooting against relentless enemy pressure
The Callisto Protocol
Melee-parry timing and dodge-direction choices are the core skill
The Callisto Protocol leans a little harder on reads, though the gap is small.
Doom (1993)
Enemies follow scripted patrol and attack patterns, not adaptive
The Callisto Protocol
Mutants follow telegraphed scripted attack patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Doom (1993)
Enemy placement is fixed but unknown on first run through levels
The Callisto Protocol
Some loot containers and drop variability add mild uncertainty
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Doom (1993)
Level routing and resource management determine survival efficiency
The Callisto Protocol
Weapon upgrades and credit management have limited depth
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.