Progression checklist
Tick off 17 bosses, 16 events and invasions, 37 town NPCs and 4 upgrades in unlock order.
Next up
- Bosses
King Slime - Events and invasions
Blood Moon - Town NPCs
Guide - Upgrades
Life Crystal
Every step is ticked.
Start of a new worldHidden stage 0 / 37
Open from the start.
Bosses 0 / 7
Use a
Slime Crown. It also comes during Slime Rain after 150 slimes are killed (75 once it is beaten).Hidden until you tick the step before it.
Use a
Suspicious Looking Eye at night. At nightfall it can also come by itself (1 in 3) when a player has 200 max life and more than 10 defense, and 4 or more town NPCs live.Hidden until you tick the step before it.
Use
Worm Food in the Corruption or 
Bloody Spine in the Crimson. Every third 
Shadow Orb or Crimson Heart you break also calls it.Hidden until you tick the step before it.
Use an
Abeemination in the Jungle, or break a Larva.Hidden until you tick the step before it.
Use a
Deer Thing in the Snow biome. It can also come on its own when it rains at night on the snow surface with no town NPCs near.Hidden until you tick the step before it.
Throw a
Guide Voodoo Doll into lava in the lowest 205 tiles of the world while the Guide lives. Killing it starts Hardmode.Hidden until you tick the step before it.
Events and invasions 0 / 7
At nightfall, 1 in 9 when a player has more than 120 max life, never on a new moon. Or use a
Bloody Tear at night.Hidden until you tick the step before it.
At dawn once a
Shadow Orb or Crimson Heart was broken: 1 in 3 until the first win. Or use a 
Goblin Battle Standard. Needs a player with 200 max life.Hidden until you tick the step before it.
- Slime Rain
Starts at random in the morning when it is not raining. It is twice as likely before
King Slime is beaten.Hidden until you tick the step before it.
Starts at random in strong wind: 1 in 64,800 per tick before Hardmode, 1 in 43,200 in Hardmode.
Hidden until you tick the step before it.
At dawn, 1 in 10 when the
Party Girl lives in town with 5 town NPCs who can join a party.Hidden until you tick the step before it.
- Lantern Night
The night after the first win over most bosses and events. After
Moon Lord it can also start by itself.Hidden until you tick the step before it.
Town NPCs 0 / 21
A player carries bullets or a weapon that fires bullets.
Hidden until you tick the step before it.
A player carries an explosive, and the
Merchant lives in town.Hidden until you tick the step before it.
Find the
Webbed Stylist in a 
Spider Nest and talk to her.Hidden until you tick the step before it.
After the
Goblin Invasion is beaten, find the 
Bound Goblin in the caverns and talk to him.Hidden until you tick the step before it.
A player carries or wears a dye, and 4 or more town NPCs live.
Hidden until you tick the step before it.
20 or more town NPCs live: then 1 in 40 per check.
Hidden until you tick the step before it.
Kill a
Clumsy Balloon Slime. It floats in the sky layer until the Clumsy Slime is unlocked.Hidden until you tick the step before it.
Drop a
Copper Helmet or a 
Copper Shortsword onto a slime.Hidden until you tick the step before it.
Upgrades 0 / 2
After Eye of CthulhuHidden stage 0 / 1
Starts when 
Eye of Cthulhu dies.
Town NPCs 0 / 1
After
Eye of Cthulhu, 
Eater of Worlds or 
Brain of Cthulhu, or 
Skeletron is beaten.Hidden until you tick the step before it.
After the Eater of Worlds or the Brain of CthulhuHidden stage 0 / 3
Starts when Eater of Worlds or Brain of Cthulhu dies.
Events and invasions 0 / 2
Put an
Eternia Crystal on an 
Eternia Crystal Stand. The 
Tavernkeep sells the crystal. Tier 2 comes after any mechanical boss, tier 3 after 
Golem.Hidden until you tick the step before it.
After
Eater of Worlds or Brain of Cthulhu is beaten: the first kill always brings one, later kills 1 in 2. Each nightfall after that also rolls 1 in 50.Hidden until you tick the step before it.
Town NPCs 0 / 1
After
Eater of Worlds or Brain of Cthulhu is beaten, find the 
Unconscious Man and talk to him.Hidden until you tick the step before it.
After SkeletronHidden stage 0 / 3
Starts when Skeletron dies.
Town NPCs 0 / 3
After
Skeletron is beaten, find the 
Bound Mechanic in the 
The Dungeon and talk to her.Hidden until you tick the step before it.
After
Skeletron is beaten, open an 
Old Shaking Chest below the cavern layer with a 
Golden Key.Hidden until you tick the step before it.
HardmodeHidden stage 0 / 13
Starts when the 
Wall of Flesh dies.
Bosses 0 / 5
Retinazer and 
SpazmatismUse a
Mechanical Eye at night. After an altar is smashed, each nightfall also has a 1 in 10 roll to call an unbeaten mechanical boss.Hidden until you tick the step before it.
Use a
Mechanical Worm at night. After an altar is smashed, each nightfall also has a 1 in 10 roll to call an unbeaten mechanical boss.Hidden until you tick the step before it.
Use a
Mechanical Skull at night. After an altar is smashed, each nightfall also has a 1 in 10 roll to call an unbeaten mechanical boss.Hidden until you tick the step before it.
Fish with a
Truffle Worm as bait within 380 tiles of a world edge, in water of more than 1000 tiles. 
Truffle Worm appear in Hardmode on mushroom grass below the surface.Hidden until you tick the step before it.
Events and invasions 0 / 2
At dawn in Hardmode once an altar is smashed: 1 in 30 until the first win, then 1 in 60. Or use a
Pirate Map, which drops in the Hardmode Ocean.Hidden until you tick the step before it.
Use a
Snow Globe. Snow Globes come out of 
Present in Hardmode.Hidden until you tick the step before it.
Town NPCs 0 / 5
In Hardmode, find the
Bound Wizard in the caverns and talk to him.Hidden until you tick the step before it.
In Hardmode, hit a
Tortured Soul in the Underworld with 
Purification Powder.Hidden until you tick the step before it.
In Hardmode, a free house in a mushroom area with at least 100 mushroom tiles. The first time, the house must be above the surface line.
Hidden until you tick the step before it.
After the
Frost Legion is beaten, from 15 to 31 December.Hidden until you tick the step before it.
Upgrades 0 / 1
Expert and Master only, from the
Treasure Bag (Wall of Flesh): one more accessory slot (6 in Expert, 7 in Master). Classic and Journey have 5.Hidden until you tick the step before it.
After Queen SlimeHidden stage 0 / 1
Starts when 
Queen Slime dies.
Town NPCs 0 / 1
Use or shimmer a
Sparkle Slime Balloon. Queen Slime drops it.Hidden until you tick the step before it.
After one mechanical bossHidden stage 0 / 3
Starts when Retinazer, 
The Destroyer or 
Skeletron Prime dies.
Events and invasions 0 / 1
At dawn after any mechanical boss: 1 in 20. Or use a
Solar Tablet in the day.Hidden until you tick the step before it.
Town NPCs 0 / 1
Upgrades 0 / 1
+5 max life each, from 400 up to 500. It grows in the Jungle in Hardmode once any mechanical boss is beaten.
Hidden until you tick the step before it.
After all three mechanical bossesHidden stage 0 / 1
Starts when Retinazer, The Destroyer and Skeletron Prime are all dead. Bulbs that call 
Plantera then grow on Jungle grass.
Bosses 0 / 1
No summon item. Break a Plantera Bulb; bulbs grow on Jungle grass once all three mechanical bosses are dead.
Hidden until you tick the step before it.
After PlanteraHidden stage 0 / 6
Starts when Plantera dies.
Bosses 0 / 2
Use a
Lihzahrd Power Cell on the 
Lihzahrd Altar. The Temple doors open with a 
Temple Key, which Plantera drops.Hidden until you tick the step before it.
No summon item. Kill a
Prismatic Lacewing. It appears after Plantera on the surface Hallow in the first half of the night.Hidden until you tick the step before it.
Events and invasions 0 / 2
Use a
Pumpkin Moon Medallion at night. It is made with 
Ectoplasm, which the 
Dungeon Spirit drops in the dungeon after Plantera.Hidden until you tick the step before it.
Use a
Naughty Present at night. It is made with Ectoplasm, which the Dungeon Spirit drops in the dungeon after Plantera.Hidden until you tick the step before it.
Town NPCs 0 / 2
24 town NPCs live in town: every move-in NPC on this list except
Santa Claus, the pets and the town slimes.Hidden until you tick the step before it.
After GolemHidden stage 0 / 2
Starts when Golem dies.
Bosses 0 / 1
Events and invasions 0 / 1
Starts when a
Martian Probe escapes. Probes appear after Golem in the outer third of the world.Hidden until you tick the step before it.
After Lunatic CultistHidden stage 0 / 2
Starts when the 
Lunatic Cultist dies. Four pillars rise.
Bosses 0 / 1
It comes 1 minute after all four pillars die. Or use a
Celestial Sigil after Golem.Hidden until you tick the step before it.
Events and invasions 0 / 1
- Lunar Events
Solar Pillar 
Vortex Pillar 
Nebula Pillar 
Stardust PillarThe four pillars rise when the
Lunatic Cultist dies. Moon Lord comes when all four are dead.Hidden until you tick the step before it.