Lifeless Mode

Lifeless Mode is a difficulty greater than Expert Mode. The only way to activate it is to fail to kill the Septuplets before daytime and survive the waves of Dungeon Guardians, and then somehow defeat trilllions upon trillions of Walls of Flesh without getting your computer melted.

In Lifeless Mode, boss health, damage and defense is increased by 9999%. Boss and Enemy AI are completely merciless, and NPCs are completey worthless.

King Slime
Health - 279 972

Damage - 6399

Defence - 999

King Slime moves as fast as the dungeon guardian, and rapidly shoots out flamethrower projectiles at the player during the fight. If he is defeated, instead of spawning blue slimes, multiple King Slimes are spawned.

Its lifeless treasure bag contains the Unroyal Gel, which increases slime spawn rate by 500% and slime's damage by 1000%.

Eye of Cthulhu
Health - 363 963

Damage - 1499

Defence - 1199

The Eye does its charge attacks as soon as it spawns. If the player dies to its charge attack, it rapidly kills all of the Town NPCs. The town npcs will not be able to spawn again if that happens.

Its lifeless treasure bag will drop the Shield of Sadness. It gives the player -999 defense and attempting to charge will result in 100,000 dungeon guardians spawning.

Eater of Worlds
Head Health - 6499

Body Health - 14998

Tail health - 21997

Total Health - 1 047 795

Damage - 4799

Defence - 999

The Eater of World's speed is increased by 500%.It rapidly absorbs Ebonstone Blocks, which add 500 extra segments to the boss.If the player dies to the Eater of Worlds, it will eat every block in the world.

Its lifeless treasure bag drops the Bloody Scarf, which increases damage from enemies by 1700000%.

Brain of Cthulhu
Creeper Health - 19998

Second Form Health - 169983

Total Health - 569 943 to 769 923 (with creepers)

Defence - 1399

Damage - 5399

The Brain of Cthulhu teleports every few seconds, and the Creepers directly attack the player rather than circling its master. When the brain is in its second form, its confusion effect will be clear from the beginning, and if the player hits one of the fake BOCs, a second Brain of Cthulhu will spawn.

Its lifeless treasure bag contains a Brain of Death, which will cause the screen to shake rapidly and other things that will result in the player getting nauseous in real life.

Queen Bee
Health - 469 953

Defence - 1999

Damage - 5399

The Queen Bee never stops to shoot stingers at the player, and instead rapidly charges Eye of Cthulhu style. If the player manages to dodge the attack, their movement speed will be decreased by 10%. This effect will stack up, and by the end of the fight the Player will be as slow as a snail.

Its lifeless treasure bag will contain a Hive Destroyer, which will make all friendly bees that cause damage to enemies (Bee Gun, Beenades, etc.) to turn on the player and deal millions of damage.

Skeletron
Health - 879 912

Defence - 999

Damage - 6999

Skeletron will spawn with 10 hands instead of 2. Skeletron's head can't be damaged until all the arms are killed. His charges are as fast as the Dungeon Guardian's. Instead of shooting out magical skulls, Skeletron will shoot out Dungeon Guardian heads. If Skeletron is not defeated before daytime, the entire dungeon will blow up. Heading underground anywhere from that point on will result in dungeon guardians spawning.

The Book of Skulls will shoot out Dungeon Guardian heads which will attack the player.

Its lifeless treasure bag will contain a Bone Gauntlet. Equiping the gauntlet will result in half of your NPCs dying, and they will not be able to return.

Wall of Flesh
Health - 1 119 888

Damage - 14998

Defence - 1799

The Wall of Flesh reaches maximum speed as soon as it spawns. The Hungry will be able to reach all across the screen, so running away from the WoF won't help the player. When fighting the WoF, the effects of Obsidian Skin, Water walking potions and lava charm/waders will be negated. However, the player will fall through any block that is not ash.

Its lifeless treasure bag contains a Death Heart, which decreases the player's maximum health by 50 and deletes every accessory slot.

The Destroyer
Health - 11 998 800

Damage - 27997

Defence - 3499

The Destroyer works similar to the Eater of Worlds, but absorb any type of block. When a block is absorbed, its health is increased by 500%. Its lazer attacks are rapid and never stop. Probes are replaced with Skeletron Prime heads.

Its lifeless treasure bag contains a Mechanical Nuke part.

The Twins
Retinazer Health - 2 999 700

Spazmatism Health - 3 449 655

Total Health - 6 449 355

Damage - 8999

Defence - 2999

Retinazer's lazers, similar to the Destroyer's, never stop. Both of the Twins start in their second form, and Spazmatism never stops shooting its Cursed Flames, which have a far greater reach than in Normal mode.

Its lifeless treasure bag contains another Mechanical Nuke part.

Skeletron Prime
Health - 6 999 300

Damage - 15798

Defence - 4799

Skeletron Prime, similar to its doppelganger will spin eternally. The Prime Cannon's bombs will be able to destroy the environment, like a normal bomb. The Prime Lazer Cannon will not stop shooting at the player. The Prime Vice will be able to grab the player and toss them across the map. If Prime is not defeated before daytime, it will kill the player, and the player will be permanently deleted, even if they aren't on hardcore or not.

Its lifeless treasure bag contains the final Mechanical Nuke part.

The Mechanical Nuke is a special non-consumable bomb which will completely destroy the world when used. It will also summon thousands of each of the Mech Bosses.

Plantera
Health - 4 199 580

Damage - 11998

Defence - 1399

Plantera will start in its second form, and will be much faster than usual. It will rapidly shoot stinger projectiles at the player which will likely kill them in one hit. When a hook is killed, another Plantera is spawned.

Its lifeless treasure bag will contain a Vemon Sack, which will rapidly poison the player.

If you go to the surface, Plantera will kill you in an instant and will cause the Jungle to take over your entire world.

Golem
Health - 5 799 420

Damage - 12798

Defence - 3199

Golem will be able to move through blocks and its fist attack has an infinite reach. Its fist speed is also rapidly increased, dealing thousands of damage very quickly. Leaving the temple or dying to Golem will result in the entire underground jungle exploding.

Its lifeless treasure bag contains a Rusty Stone, which will stop any kind of life regeneration and healing potions will do nothing.

Duke Fishron
Health - 5 999 400

Damage - 15998

Defense - 9999

Duke Fishron will start in its second form, and thousands of sharknados will be summoned across the Player's arena. Duke Fishron's charges never stop, and if the Player leaves the ocean of dies to Duke Fishron, the Ocean will rapidly flood the entire world up to space.

Lunatic Cultist
Health - 3 999 600

Damage - 29997

Defence - 4199

The Lunatic cultist will rapidly move all over the screen, and will perform all of its attacks at the same time. Its lightning and phantasmal dragon will be so rapid the player's brain will not be able to catch up. If the Lunatic Cultist is victorius, the Pillars will spawn regardless.

Pillars
The Lunar Pillars all have 1 999 800 health. To destroy the shield, the player must kill 14998 enemies.

Moon Lord
The Moon Lord does not exist in Lifeless Mode. Instead, one minute after Impending Doom Approaches is on screen, the world rapidly explodes and several dectillion enemies spawn, resulting in your computer literally exploding.

Life Crystal
The Life Crystal only gives the player 2 health. This means that the max health in pre-hardmode is 130 health.

Life Fruit
Life Fruit only give the player 1 health. This means that the max health in Hardmode is 150 health.

Book of Skulls
The Book of Skulls, as mentioned earlier, will shoot out Dungeon Guardian heads which will attack the player.

Nurse
The Nurse becomes extremely greedy in Lifeless Mode.Instead for 0.75 copper per 1 hp, the nurse demands 1 platinum per health point.

Goblin Tinkerer
The Goblin Tinkerer will only be able to give the player negative modifiers, such as Shoddy, Broken and Terrible.

Accessories will not be able to have modifiers in Lifeless Mode.

Angler
The Angler will demand 200 seperate quest fish. Instead of lasting a full day, an angler quest lasts a minute.

Skeleton Merchant
The Skeleton Merchant will become hostile and attack the Player in Lifeless Mode.

Guide
The Guide is extremely unreliable in Lifeless Mode. He will always give you the wrong recipe if you click "Crafting".

Dye Trader
When you give him a Strange Plant, he will poison the player and kill them.

Tax Collector
When pressing Collect in the dialogue menu, the Tax Collector will steal all of your money.