head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
The expanded sequel sending the SMERSH operative on more elaborate WWII infiltration missions.

Optimization · Pure Optimization
A 2D sandbox where preparation and gear tiering carry boss fights.
Death to Spies: Moment of Truth leans Optimization (Pure Optimization); Terraria leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Death to Spies: Moment of Truth
Stealth inputs are forgiving once the plan exists
Terraria
Boss fights require dodging and aim under pressure.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Death to Spies: Moment of Truth
Guards never learn from your previous attempts
Terraria
Bosses use scripted attacks; no adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Death to Spies: Moment of Truth
Initial uncertainty about patrols and objective placement
Terraria
World seeds and loot drops randomized.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Death to Spies: Moment of Truth
Perfect routes through clockwork levels are fully solvable
Terraria
Gear progression and arena prep solve every boss.
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.