Planet Gravity

Every world in Nerospace pulls with its own gravity. The Overworld feels normal, the Orbital Station is almost weightless, and the planets sit somewhere in between — so how high you jump, how fast you fall, and how far a thrown item flies all change depending on where you are.

Gravity at a glance#

Values are relative to normal Overworld gravity (1.0×). These are the current defaults and are fully adjustable with the gravityMultiplier config option.

Lower gravity means a higher jump and a slower fall, so you also take less fall damage — a long drop on Glacira that would hurt on the Overworld is survivable.

What it affects#

Gravity applies to everything that falls, not just you:

• You and mobs — movement, jump height, and fall speed/damage all scale. Native creatures bound around their low-gravity worlds the same way you do.
• Dropped items, arrows, falling blocks, TNT, and XP orbs — they hang and drift on low-gravity worlds and settle faster on heavy ones.
• Meteors — a falling meteor descends more slowly on a low-gravity world, drawing out its fiery arc.

Because gravity is applied through the game's own gravity stat (for you and mobs), movement stays smooth and responsive — no lag or rubber-banding when you cross between worlds.

Per-biome variation#

A planet's gravity is its baseline, but individual biomes can pull lighter or heavier than their world's default — a crater floor might be near-weightless while a dense basin feels almost normal. Biome gravity is data-driven (datapack biome tags: gravity_micro, gravity_low, gravity_high), so packs can tune or add zones without code.

Terraforming restores normal gravity#

Reclaimed ground pulls its weight. As a Terraformer converts a dead, low-gravity planet into living land, that terraformed ground returns to normal, Earth-like gravity — so a fully terraformed base feels like home even on a moon that started out floaty. (An explicit biome gravity tag, if a pack sets one, takes priority over this.)

Configuration#

• gravityMultiplier (0.1–10, default 1.0) — a global scale on all gravity. Set it below 1 for an even floatier game everywhere, or above 1 for a heavier one.

Checking gravity in-game#

The creative/op command /nerospace gravity reports the gravity in effect where you're standing — the value, where it comes from (biome, terraformed ground, or the planet default), and your current gravity stat. Handy for tuning a pack or filing a bug report.

Details#

• Source priority: biome gravity tag → terraformed ground (normal) → planet default → normal, then scaled by gravityMultiplier.
• Affects: players, living mobs, dropped items, arrows, falling blocks, primed TNT, XP orbs, and falling meteors.
• Biome tags: nerospace:gravity_micro, nerospace:gravity_low, nerospace:gravity_high.