Now before everyone yells it's too complicated or whatever, just hear me out. My suggestion is dimensions which would work similarly to a pre-existing mod... Super Terraria World! If you don't know what I am talking about then let me explain, in Super Terraria World, there are portals that lead to Instances which are worlds generated but are much smaller than the any world option and are of one biome like the Forest Portal would lead you to a world that only has the Forest biome and the Crimson Portal would lead you to a world that only has the Crimson Biome. In order to enter them, you would press the "Up" button. In order for you to get the portal, kill a biome Goblin that is of that biome's portal, like if you want a Crimson portal, kill a Crimson Goblin. The portals look like this: Please disregard the parrot in that picture My version would work like this: Instead of killing a goblin for the portal, you would kill a Fractured Reality Seam which spawns in the space biome after the Moon Lord is defeated, it cannot harm the player but the player can harm them. They would have the same appearance as a recolored Ancient Light. Their spawning would be toggle with a drop from the Moon Lord called the Dimensional Mender and Ripper which has no cost and has no other purpose than toggling the spawning of the Fractured Reality Seam, it can also be used in a world that the Moon Lord wasn't defeat. Once one of these Seams have been destroyed, a portal will open. The portal works similar to a NPC as it opens like them with the menu saying,"A mysterious dimension..." and has three options, Enter which allows you to enter the portal. Dispel which allows you to get rid of it, it doesn't work if a player is currently in the dimension. And of course Close which closes the menu. The entering of the portal would work exactly as Super Terraria World. However there are differences with the worlds. First, the worlds would be set to Expert Mode permanently due to the fact you need to defeat the Moon Lord in the first place so it would be like an endgame. Second, your world stats are transferred over to that world but not back, meaning if you were in Hardmode in your original world or a certain boss has been defeated, the world would act the same. However, if you decide to defeat a boss in this world, it will not transfer that data back to the original world. Upon dying in the dimensional world, as long as there no other players in the world, it will be deleted and you will be sent back to your spawn point. If you would leave of your own will (in your menu would have "Leave Dimension" just like Super Terraria World that allows you to leave at any point.) then the world will not be deleted, you will be place right next to the portal, and will stay around, but it is able to despawn and when it does, the world would be deleted. Now you might be asking about the world evil and it can be both. Let's say you have a Crimson world, you can get a portal to both Corruption and Crimson in the same world. Biomes for Portals! Forest Biome Just the same as the real version but higher chance of large trees spawning in it and now and then you might find a ruined house. Wonder who lived in that. Desert Biome Again the same but guaranteed Pyramid! Dungeon Biome Available after Skeletron is defeated.You would spawn right in the dungeon. Bring your Biome keys though as there is no way to get them here and all variants of the Biome Chests will spawn here. Corruption and Crimson! Now you can get those Vampire Knives you Corruption world players! The color of the Dungeon's brick depends on RNG Lihzahrd Temple Available after Golem is defeated. It is simply a world turned into a Lihzahrd temple. More Lihzahrd Altars to summon Golem can be found here. Jungle Usually looks the same with the exception of the few pygmy houses with a tiki totem to take. If you have already defeated the three Mech bosses then Plantera's bulb will spawn here, however if you kill Plantera in the dimension, it will not be counted in the original world. The Mobile exclusive Jungle Sanctum would be found here with the same things as the original. Meteorite You're on the surface of a Meteor, a lot of ore here for you, just don't touch it because it's going to burn. You will spawn on a Meteorite Brick Platform Still WIP, please wait for next update of this. Event Portals These are portals for events that have at least occurred once. Martian City: Xenopolis Look upon the glory of tech! However, get ready because the Martian Invasion event begins because the Martians don't like you and they want you to leave their world. Goblin Town: Goblin Kingdom A medieval town, the Goblin Army will attack you here because they hate trespassers. Frozen Hangout: Sub-Zero Safehouse The Frost Legions lives here, careful as these Gangstas are after trespassers! Shipwrecked Island: Booty Island They are here, and coming for your BOOTY! Treasure booty that is. SLIME WORLD The world of Slime Rancher, Just Kidding, There is just a lot slimes trying to kill you Pumpkin Patch:Haunted Harvest Halloween is closer than you think, a haunted house also spawns here with some Halloween exclusive items like Goody Bags Arctic Wasteland: Frozen Wasteland The Christmas Spirit is here, and it's angry. A few igloos spawn with many items like the Fish (summons pet Penguin), Ice Mirror,and Presents! LUNAR WORLDS Portals to these worlds appears after the Lunar Apocalypse, the Pillars of that world will be near in that world. Lunar World:Solar A burning world, fire is more of a hazard here and healing is crucial for survival here Lunar World:Vortex A weird Desert but it's infested with these Aliens, be careful. Lunar World:Nebula Looks like a cluster of sky islands, the nebulan creatures are taking the power of the ability to float here, speed to escape them is very useful here. Lunar World:Stardust A lot of planetoids here, and star creatures too. OTHER PORTALS Aperture Science Has some portal guns for some extra cash and a Companion Cube can be found here, free of charge! WIP Other things before you go Town NPCs and Other Portals cannot spawn within the dimension There can be a Maximum of Three (3) portals in a world at a time. This is just a suggestion Thanks to @Yello_Xplorer for the names of the worlds OH GEEZ that was a lot of typing! Comments, Concerns, Criticism?