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

Optimization · Pure Optimization
A 2D sandbox of procedurally generated planets driven by crafting progression.

Optimization · Pure Optimization
A grand strategy game set in a fictional matriarchal world.
Starbound leans Optimization (Pure Optimization); Terra Feminarum 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.
Starbound
Light platforming and combat, generous margins
Terra Feminarum
light strategic-map movement control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Starbound
Procedural NPCs follow simple fixed behaviours
Terra Feminarum
AI factions follow fixed strategic logic
Starbound leans a little harder on variance, though the gap is small.
Starbound
Procedural planets and loot keep early exploration unknown
Terra Feminarum
battle outcomes and events randomized
Starbound leans a little harder on optimization, though the gap is small.
Starbound
Gear tiers, farming, and progression routes dominate
Terra Feminarum
empire management and strategy dominate play
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.