"Stealth Improved" adds a complete player stealth system to Hytale that vanilla doesn't have. Crouch to enter stealth — mobs evaluate whether they can actually detect you based on view cone, light level, and how much noise you're making.

How it works

Vanilla Hytale has no player stealth. Mobs spot you based purely on their view cone and line of sight regardless of light or movement. StealthImproved hooks directly into the vanilla attitude pipeline — the same system mobs use to decide whether to attack — and suppresses aggro only when you genuinely wouldn't be detected.

View cone detection: mobs only spot you if you're in their forward arc
Light-level awareness: darker areas reduce detection range
Sprint noise: running while crouching expands detection range and removes the cone check, mobs hear you coming from any direction
Instant detect zone: get within 4 blocks of a mob and it hears you regardless of light or direction.
Backstab: attacking from behind while hidden multiplies damage
Concealment meter: live HUD showing your detection level so you always know how exposed you are

Fully configurable

stealth.json config file is written to your server data folder on first launch. Every value is tunable from: detection ranges, FOV angle, light sensitivity, backstab multiplier, sprint noise bonus, and concealment drain rates