Updated for Terraria 1.4.5

Terraria 1.4.5 tools: boss order, NPC happiness and crafting trees

TerraCraft Tools answers the questions you have mid-game in Terraria 1.4.5: which boss to fight next (all 33 bosses in a checklist that remembers your progress), where each of the 26 happiness NPCs is happiest and whether they sell a pylon, how many raw materials a crafting tree really needs, what an item turns into in Shimmer, and how much damage a hit does after defense. Everything loads fast on a phone, and every number comes from the Terraria Wiki's data, checked 14 October 2026 against patch 1.4.5.8.

Terraria 1.4.5 · patch 1.4.5.8
No sign-up, no pop-ups
Every number from the wiki's data
Progress saved in your browser

Tools

Most usedBoss order checkerAll 33 bosses as a progression timeline. Tick what you beat; it tells you the next boss, its summon item and its HP in Classic, Expert and Master.

Open the checker

New: town plannerNPC happinessPrice and pylon for any NPC, biome and neighbours, plus a drag-and-drop town planner for all 26 NPCs.

Plan your towns Crafting treesEvery step and the raw totals, times any quantity.

See the trees Shimmer calculator287 transmutations and where the Aether spawns.

Transmute Damage calculatorHit damage, crits, DPS and damage taken per mode.

Calculate Class setupsMelee, ranged, mage and summoner gear for five stages, with weapon damage.

Pick a class

World seedsAll 9 special seeds and the 37 secret seeds new in 1.4.5, with codes.Browse seeds

In the game

Reference

All bossesHP in every mode for all 33.Open

Town NPCsHow to unlock each NPC and where to house them.Open

NPC happiness chartEvery biome and neighbour preference.Open

Hardmode boss orderThe 10 Hardmode bosses step by step.Open

Progression in one line

The usual pre-Hardmode order is King Slime → Eye of Cthulhu → Eater of Worlds or Brain of Cthulhu → Queen Bee → Skeletron → Deerclops → Wall of Flesh. Killing the Wall of Flesh starts Hardmode; the main Hardmode path then runs Queen Slime → The Twins → The Destroyer → Skeletron Prime → Plantera → Golem → Duke Fishron → Empress of Light → Lunatic Cultist → Moon Lord. The boss order checker adds the 14 event bosses and Mechdusa and keeps your ticks in this browser.

The wikis hold everything, but mid-game you usually need one number fast. We turn the wiki's facts into calculators and short answer pages, written in our own words, with the game version and data date on every page.

Data: Terraria 1.4.5 facts from the Terraria Wiki (terraria.wiki.gg, CC BY-NC-SA 4.0), checked 14 October 2026 against patch 1.4.5.8. Text and tools are our own. Wrong number? Tell us.