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.

Optimization · Pure Optimization
Immersive sim aboard Talos I where build and route choices dominate.

Optimization · Pure Optimization
A 2D sandbox where preparation and gear tiering carry boss fights.
Prey (2017) 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.
Prey (2017)
Wrench and Gloo timing modest.
Terraria
Boss fights require dodging and aim under pressure.
Prey (2017) leans a little harder on reads, though the gap is small.
Prey (2017)
Typhon AI scripted, not adaptive.
Terraria
Bosses use scripted attacks; no adaptation.
Terraria leans a little harder on variance, though the gap is small.
Prey (2017)
Mimics and resource spawns randomized.
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.
Prey (2017)
Neuromods, builds, station routing deeply 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.