Using seed 5162020 gets you a crimson/corruption world. - Terraria

May 17, 2020 - Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. The world is your canvas and the ground itself is your paint.

Steam Community :: Guide :: Terraria Best World Seeds List! (Rare Glitches, Updated Seeds)

Secret world seeds - Terraria Wiki

Secret world seeds - Terraria Wiki

Using seed 5162020 gets you a crimson/corruption world. : r/Terraria

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i need help what are some really good seeds you know of? : r/Terraria

Secret World Seeds - The Official Terraria Wiki, PDF, Wiki

PC - SHARE YOUR MAP SEED [PC 1.3.4 & beyond], Page 14