Weather

The Spirit Mod adds 3 new weather events, with each weather event adding either special effects to the biome or reducing enemy spawns completely.

Aurora Borealis
Aurora's are an event that have a chance of occurring each night in Space and the Snow biome. Its own track will only play while in the Snow biome.

Algae Bloom
Algae Bloom is an event that has a chance of occurring when near the Ocean. It causes Algae to form, lighting up the water and background, and reduces all nearby spawnrates.

Calm Nights
Calm Nights are events that have a chance of occurring each night while in the Forest biome. During the event, spawnrates are reduced and the Calm Night track plays during the event.