The Awakening (Event)

The Awakening is a War Mode event that starts from Space Biome and spreads to most of the world all the way untill it's over. It gives the player access to a variety of crafting materials, enemies, minibosses, bosses, treasures, etc. The event changes some of the biomes to their much more difficult versions, that have a variety of powerful mobs, minibosses and a boss that has to be defeated so the biome is reverted to it's original state. The biomes that change are Crimson/Corruption, Hallow, Space, Jungle, Dungeon and Underworld.

The event cannot be summoned straight off the War Mode beginning, because it has several conditions to be spawned: If all of that is true, a random time passes before the chat displays a message: "The ancient evil yet has to awaken". That indicates player has to go into underground Crimson/Corruption and find a Flesh/Demon Altar (if all have been destroyed, one spawns after message). This altar, however, emits bright red/violet light. Breaking this altar will cause chat to display a message: "The Awakening has begun!" and exactly that happens. Awakening is beginning.
 * Player has above 100 defense  (120 for expert mode) 
 * The Kraken has been defeated at least once.
 * Less than half of world is stained by Corruption/Crimson and Hallow.

Major biome changes

 * All of biomes, mentioned as changing are changing their outlooks to similiar. Sky and ground turn black, and such elements as grass, tree leaves, ores, cactuses, etc. begin glowing a bright color that depends on biome you're in. Crimson for Crimson, Violet for Corruption, Sky blue for Hallow, Dark gray for Space, Green for Jungle, Orange-Yellow for Underworld and brighter color of dungeon bricks' color for Dungeon. They all start spawning the basic Awakening enemies and the unique enemies that spawn on this one event in certain biomes.
 * Opened chests respawn. Some new chests also spawn.
 * A small ammount (At least 3 for small world, at least 5 for medium world and at least 10 for large world) of chests that require keys spawn.
 * There is a possibility of surprise boss. It is a location-related vanilla boss that has a 5% chance of spawning instead of any 100th enemy. The chat displays a summoning message, however background music doesn't chance and is still music of the awakening. This doesn't count as a biome boss so this doesn't free the location from the Awakening.