Ark of Lights is a Terraria mod that Adds Items, Buffs, NPCs, and Mechanics.
OpenSource in Github
New Mechanics that Ark of Ligths add are Alchemy/Chemistry system,
adding alot of Progression and Sub-items to play with.
Allowing longer but easier progression, and this extends to Hardmode.
Added a few(Working on it) NPCs into the game.
One of them is Albedo which is from **** getting intact(genshin impact).
He can move in at Mid-Late Hardmode and he will sells you potions that are available at that point of progression.