> ## Documentation Index > Fetch the complete documentation index at: https://docs.rpgmobs.frotty27.com/llms.txt > Use this file to discover all available pages before exploring further. # Spawning Tab > Configuring progression style and spawn chances through the Admin UI. The Spawning tab controls how and where elites appear in the current world. Spawning Tab ## Progression Style Cycle button to select the progression style: * **ENVIRONMENT** - tiers tied to Hytale zone difficulty * **DISTANCE\_FROM\_SPAWN** - tiers scale with distance from world origin * **NONE** - random tier assignment ## Spawn Chances 5 weight fields (T1–T5) controlling the probability of each tier. Higher values mean that tier appears more often. Set a tier to `0` to prevent it from spawning. ## Environment Tier Rules When using `ENVIRONMENT` progression, a list of zone rules appears. Each zone entry has: * **Zone name** (e.g., Env\_Zone1, Env\_Zone2) * **Enabled** toggle - set to OFF to prevent elites in that zone * **Per-tier spawn weights** - 5 fields controlling tier distribution for that zone ## Distance Bonuses When using `DISTANCE_FROM_SPAWN` progression: * **Distance per Tier** - blocks of distance before the next tier unlocks * **Bonus Interval** - block interval for applying stat bonuses * **Health / Damage Bonus per Interval** - bonus added each interval * **Health / Damage Bonus Cap** - maximum bonus from distance ## Tier Restrictions Per-mob tier restrictions let you control which tiers specific mobs can spawn as. Each entry has: * **Key** - a mob rule key (e.g., `Goblin_Duke`) or category key (e.g., `category:Goblins`) * **5 tier toggles** (T1–T5) - which tiers are allowed for this mob (ON = can spawn as that tier) * **Expandable spawn chance weights** - click to expand and set per-tier spawn weights for finer control Click **+ Add** to add a new tier restriction entry. ## Loot Overrides Per-mob loot template assignments let you force a specific loot template for a mob rule. Each entry maps a mob rule key to a loot template name. Click **+ Add** to add a new loot override entry. **YAML reference:** See [Spawning](/config/spawning) for the underlying `spawning.yml` fields, and [Overlays](/config/instances) for `tierOverrides` and `lootOverrides` overlay fields.