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 · Pure Optimization
A 2D sandbox where preparation and gear tiering carry boss fights.

Optimization · Practiced Mastery
The original open-exploration adventure where hidden secrets and dungeon knowledge are everything.
Terraria leans Optimization (Pure Optimization); The Legend of Zelda leans Optimization (Practiced Mastery).
The Legend of Zelda leans a little harder on execution, though the gap is small.
Terraria
Boss fights require dodging and aim under pressure.
The Legend of Zelda
Tight sword-poking against aggressive enemies
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Terraria
Bosses use scripted attacks; no adaptation.
The Legend of Zelda
Enemies move on fixed or random patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Terraria
World seeds and loot drops randomized.
The Legend of Zelda
Hidden caves and burn-every-bush secrets
Terraria leans a little harder on optimization, though the gap is small.
Terraria
Gear progression and arena prep solve every boss.
The Legend of Zelda
Dungeon order, item routing, and secret knowledge
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.