User blog:Lethal-Hornet/Favourite Fan Ideas Event

So, I was surfing the wiki, and I came across many new 'event' ideas. All of them seemed good, and then I had a though. Why not see what the community thinks about these ideas? These are the events and all about them:

It happens every 80 terrarian days. All NPCs will sell one free item, and a new NPC called the Birthday Guy will spawn. An invasion event that will bring hell-related monsters to invade your world! This event has 30 waves and a variety of different monsters. A pre-hardmode invasion which requires you to have broken at least 4 Shadow Orbs/Pulsating Hearts, The Goblin Army defeated, and 5 campfires anywhere in your world. It is a pretty easy invasion with some good loot! An event that requires you to have beaten the desert-themed boss 'Ant Lyon'. It has a variety of different sand-themed monsters, and, once completed, the Nomad NPC will enter your world! This stormy event has 24 waves of new bosses, monsters and loot! During this event, it will constantly rain, so make sure to pack your umbrellas! A futuristic alien invasion which requires you to close 'Rifts' to stop aliens from coming into your world! A 'Time-stopping' event with some new loot, enemies, and a miniboss!
 * Birthday
 * Demon Invasion
 * Indian Attack
 * Shifting Sands
 * Splitting Sky
 * Time Rift