Leveled is a mod that adds leveling elements to Terraria.
Players can level up from gaining experience through defeating enemies, mining pre-hardmode ores, fishing, or fishing quests. Players start weak, but get much stronger as they level up.
As players level up, they gain SP(Status Points) that they can apply to a unique stat advancement system in Leveled called the "Power Flower," and gain abilities and attribute bonuses.
Enemies and NPCs have been tuned for the player modifications to keep balance.
Enemies and players start at lower HP, ATK, and DEF values, but rise as their level increases.
Balance is the main goal of the mod. The second is trying to keep as close to a Vanilla experience as possible while adding leveling elements.