Guide:Mod progression

This is a Guide page. This means the page will walk you through a specific task, strategy, or enemy/boss fight. This guide was last updated for version 2.0.1.003.

This guide is intended to give a rough progression outline through the Calamity Mod. The mod adds several new points of progression and makes several changes to the base game's mechanics, which will be mentioned throughout this guide.

Pre-Hardmode

Getting Started

Starting

• The player starts with the Starter Bag, which contains weapons for each class in the game and various Potions. Difficulty modes can be enabled at the Difficulty Indicator:
  • Revengeance Mode and Death Mode are difficulty settings intended to be much more challenging than Expert Mode, introducing mechanics such as the Rage Meter and Adrenaline Meter, and new boss mechanics.
• Certain mechanics of the mod can be changed in the configuration options file.

Pre-boss exploration

• Aside from mining for Ores, Wulfrum Metal Scraps and Energy Cores are the first materials the player should look for to create armor, weapons, and useful tools to facilitate early-game exploring.
• All Biomes and the majority of Events have unique content added to each of them, so be sure to check through them for items that may be useful.
• Several new structures spawn across the world:
  • Planetoids spawn in Space, providing items that were otherwise available only in the Caverns. These structures can benefit the player greatly, especially if explored early.
    • The main Planetoid contains the Space Arsenal Lab that contains Cinderplate and chests with Herb Bags, Planter Boxes, Dubious Plating and Mysterious Circuitry. This allows the player to set up an early herb farm.
    • Ore planetoids can be generated, providing the player with a large amount of a random ore, which is useful for early crafting.
      • Ore planetoids are sometimes generated with an Enchanted Shrine, which can yield the Enchanted Sword or Terragrim.
    • Biome planetoids can be useful for obtaining items before exploring their respective biomes, most notably Bezoars, Sharpening Stations, and Glowing Mushrooms.
    • Life Crystal planetoids are guaranteed to generate with a Life Crystal inside of them and typically contain a vein of Amethyst or Topaz.
      • These planetoids will allow the player to obtain a large amount of Life Crystals early, helping them to increase their maximum life very quickly.
  • Shrines appear in different biomes, each with a unique accessory or mount for the player.
  • An Evil Island spawns in the sky above either the Dungeon or the Jungle, comprised of blocks and ore from the World Evil that is opposite to the one chosen during world generation, as well as its Biome Chest.
• Certain enemies drop vanilla items for convenience:
  • Crawlers can be found in the Underground and Cavern layers, dropping their respective gems.
  • A complete list containing all the other available items may be found here.
• NPCs also sell new items, including their dropped weapon if they have one.
• Blood Moon enemies drop Blood Orbs, which are a universal material for crafting potions, but require the Alchemy Table from the Dungeon in order to be used.

Mechanics

• The mod also adds a new Rogue class, which utilizes a unique stealth mechanic to deal extra damage.
• Several items, as well as modifiers, have been rebalanced throughout progression.
• All other changed mechanics can be referred to here.

Early boss progression

• After obtaining as much loot as they can, the player should head to the Desert or Underground Desert and fight the Desert Scourge.
  • Cnidrions are large dry seahorse-like enemies who fire a barrage of water bolts. While they are easy to kill by hiding as their bolts cannot penetrate blocks, be wary as they can fall from above and trap the player in confined areas.
  • Stormlions should be slain as they drop Stormlion Mandibles, which are necessary for the boss's summoning item.
• When the Desert Scourge is defeated, the player should make new weapons and armor with Sea Remains.
• The player may also visit the Sunken Sea for more loot.
  • In the Sunken Sea, most enemies are somewhat passive and will not attack the player unless provoked. The Giant Clam is a powerful miniboss that resides in this biome. The Sea King will spawn upon its defeat.
  • The Sea King sells many useful weapons and grants the Amidias' Blessing buff allowing for unlimited underwater breathing.
• Although not immediately useful, it is recommended that the player looks for the Sunken Sea Bio-center Lab with the Cyan Seeking Mechanism and takes the loot within.
  • The Lab Turrets can be dangerous and are immune to normal weaponry, though they can be destroyed with a pickaxe. The player should build a barrier to block their line of fire while they explore the lab.
  • The Schematic (Sunken Sea) will unlock powerful weapon recipes for later.
  • The player should also look for Power Cell Factories to place near their base so they can start producing Draedon Power Cells for later.
  • The player should also take two Charging Stations. One to create a Codebreaker with and another to recharge any chargeable weapons the player crafts.
• After the Eye of Cthulhu is defeated, Acid Rain may occur naturally, and the player is free to challenge its first tier in the Sulphurous Sea.
  • While the event is rather difficult, the Sulphuric Scales dropped by various enemies in the event can be used to craft powerful weapons as well as Sulphurous Armor.
  • While at the Sulphurous Sea, the player can loot Rusty Chests in the caverns beneath it.
    • The player should be cautious to ensure they don't accidentally enter the Abyss at this point, as they are not yet properly equipped to handle the enemies within.
• While optional, Crabulon is recommended to be fought at this point.
  • If a Glowing Mushroom biome has not been discovered yet, a Mushroom Planetoid can alternatively be used to build a small arena for him.
  • Aside from the usual weapons, Crabulon also drops a Mushroom Plasma Root in Revengeance Mode, which increases the duration of the Rage Mode buff by 1 second.
• After defeating the Eater of Worlds/Brain of Cthulhu (and optionally, Queen Bee and the Old One's Army), The Hive Mind/The Perforators can be challenged.
  • The two are initially summoned by destroying either a Hive Tumor or Perforator Cyst depending on the boss.
  • Defeating either one will cause Disenchanted Aerialite Ore found on Floating Islands to convert into mineable Aerialite Ore and cause Aero Slimes to start spawning. This is used for the Aerialite set, which will also require Feathers, Sunplate Blocks, and the Sky Mill to craft.
• The player can now craft the recipes contained within the Sunken Sea Schematic.

Late boss progression

• The next goal of the player should be to fight Skeletron and visit the Dungeon.
  • The Bandit NPC can now spawn, selling various Rogue weapons and accessories.
    • The Bandit also provides a refund service that returns a fraction of the money the player has spent at the Goblin Tinkerer on reforging.
• After rescuing the Mechanic, the player can buy Wire to craft the second Codebreaker component, the Decryption Computer which decodes the Encrypted Schematic (Planetoid) and unlocks various early-Hardmode weapons.
  • The Encrypted Schematic (Planetoid) is in the Space Bio-center Lab inside the main Planetoid, which can be located with the Yellow Seeking Mechanism.
• The Abyss is a large biome that replaces the Ocean on the Dungeon-side of the world. While optional, it contains valuable loot that will be useful against the next pair of bosses.
  • The player should build a house with a bed near the area for the sake of convenience, or use a Magic Conch to instantly teleport to either side of the world.
  • The entrance to the biome is located at the very bottom of the Sulphurous Sea.
  • Due to the constant breath loss and difficulty to see, the player is recommended to bring Light Pets to reduce the darkness in the Abyss and items to facilitate exploring in water, such as the Arctic Diving Gear and Gills Potions.
    • Abyss Torches can also be found in Abyssal Treasures and can be placed underwater to emit more light.
  • The Ancient Treasure Chests will be opened once Skeletron is defeated, each containing several weapons, accessories, and other helpful tools.
    • Equipping the accessories found in these Ancient Treasure Chests is recommended, as they will make further exploration a lot easier, such as the Iron Boots and the Depths Charm.
  • Entering the deeper parts is not recommended due to the multiple powerful enemies that may spawn in the area.
• The player can attempt to explore the Brimstone Crag at this point, though they should be wary of the powerful enemies that spawn in this biome.
• Afterwards, the player can challenge The Slime God.
  • While this boss can be skipped and fought later, the loot and the crafted Statigel set is valuable in the upcoming fight against the Wall of Flesh.
  • The boss also drops the Electrolyte Gel Pack in Revengeance Mode, which increases the damage of Adrenaline Mode by 15% and increases how much damage reduction the player gains when hit while the meter is full by 5%.
• The last step is to prepare for and defeat the Wall of Flesh, then enter Hardmode.
  • Aside from new weapons, the boss also drops a Rogue Emblem for the rogue class.

Hardmode

• If the early Hardmode progression rework is enabled in the configuration options, Cobalt Ore and Palladium Ore will spawn upon defeating the Wall of Flesh.
  • Breaking Demon Altars or Crimson Altars will yield Souls of Night.
  • The Mythril Anvil and Orichalcum Anvil are unavailable until the defeat of one Mechanical Boss.
  • Many recipes have been moved to the regular Anvil to make exploring and fighting enemies at this stage easier.
  • A full documentation of the early Hardmode progression rework can be found here.
• The Drunk Princess NPC will move in if the player has Fabsol's Vodka in their inventory.
• The Cloud Elemental and Earth Elemental now spawn in Space and the Cavern layers, respectively, serving as hazards to the unsuspecting player.
• New enemies spawn in the Sunken Sea, and the Giant Clam miniboss is buffed, gaining new attacks and dropping various weapons and Mollusk Husks.
• The Astral Infection spawns into the world, featuring powerful enemies which drop Stardust, which may be used for the Comet Shard, which increases mana by 50 as well as other items.
• Essences of Sunlight, Havoc, and Eleum are now available in Space, the Brimstone Crag and the Snow biome respectively, all of which can be used to craft new gear.
• Life Fruits begin spawning immediately upon entering Hardmode.
• The Brimstone Crag is intended to be explored at this point.
• The Cosmolight is now obtainable, allowing the player to change the time to the next dawn, noon, dusk, or midnight.
• Several vanilla bosses have been made non-linear in progression:
  • Plantera can be fought early by crafting the Portabulb.
    • Plantera's Bulb also spawns before all mechanical bosses have been defeated.
  • The Temple Key can now be crafted before Plantera is defeated, and Golem can be summoned early as well with the Old Power Cell.
  • The Lunatic Cultist can be summoned pre-Golem via the Eidolon Tablet.

Early-Hardmode boss progression

• Three new bosses become available: Cryogen, Aquatic Scourge and Brimstone Elemental. The three are intended to be fought between each Mechanical Boss fight. These bosses are not required for progression, but the gear they drop and unlock can aid the upcoming fights. Note that the Brimstone Elemental requires the defeat of one mechanical boss.
  • Defeating Cryogen spawns Cryonic Ore in the Ice biome for the Daedalus set. Note that an Adamantite or Titanium Pickaxe is needed to mine the ore, requiring the defeat of 2 mechanical bosses.
    • The Archmage NPC also spawns and sells various items and weapons.
  • Defeating Aquatic Scourge unlocks the second tier of the Acid Rain.
    • This tier unlocks new weapons for the player to aid in the upcoming fights.
  • The second tier of the Old One's Army may also be fought, as the Sentry accessories are recommended for Summoners.
• The player may optionally fight the Queen Slime at this point, which drops several useful items as well as the Hallowed Key and Souls of Light.
• If the early Hardmode progression rework is enabled, Mechanical Bosses will no longer drop Hallowed Bars at first and defeating Mechanical Bosses will cause various ores to spawn in the world.
  • Mythril Ore and Orichalcum Ore will spawn upon the defeat of the first Mechanical Boss, allowing the player to craft a Mythril or Orichalcum Anvil.
  • Adamantite Ore and Titanium Ore will spawn upon the defeat of the second Mechanical Boss.
  • Hallowed Ore will spawn in the underground Hallow following the defeat of the final Mechanical Boss, and all Mechanical Bosses will drop Hallowed Bars from that point onward.
• As soon as Mythril or Orichalcum Bars are available, the next Codebreaker component, the Long Ranged Sensor Array, can be crafted to decrypt the Encrypted Schematic (Jungle).
  • The Encrypted Schematic (Jungle) is in the Jungle Bio-center Lab, which can be located with the Green Seeking Mechanism and unlocks various recipes for late-Hardmode.
• The souls dropped by the Mechanical Bosses along with Mythril or Orichalcum Bars can be used to craft the weapons from the Planetoid Schematic.
• The Blood Orange may be crafted following the defeat of the 3 Mechanical Bosses. When consumed, it permanently increases the player's life by 25.
• After all six bosses have been defeated, the player is recommended to fight either Calamitas Clone or Plantera.
• After defeating Calamitas Clone, Solar Veils will drop from certain enemies during a Solar Eclipse and the middle area of the Abyss may now be explored, in order to hunt for Depth Cells, Lumenyl, and dig for Planty Mush.
  • The player must be very careful within this area of the Abyss, as enemies can very easily overpower them, and the lack of significant lighting can make escaping the Abyss difficult under pressure.
  • The materials here are used in gear both now and later on.
  • As the breath loss increases as the player goes deeper into the Abyss, accessories such as the Abyssal Diving Gear and the Aquatic Emblem are highly recommended from this point onward.

Post-Plantera boss progression

• Cores of Sunlight, Havoc, and Eleum can now be made by combining essences with Ectoplasm.
  • If Calamitas Clone has been defeated, Cores of Calamity can also be made, which are an essential crafting material.
• Perennial Ore will spawn underground upon Plantera's defeat.
• The Great Sand Shark may now spawn during a Sandstorm or be challenged using the Sandstorm's Core, providing Grand Scales that are used to craft items.
• The Armored Digger may appear in the Cavern layer, posing as a possibly dangerous threat.
• Solar Veils are now dropped by certain enemies during a Solar Eclipse, even if the player has not defeated Calamitas Clone.
• The next bosses to fight are Leviathan and Anahita and Astrum Aureus.
• Defeating Astrum Aureus causes the Astral enemies to gain increased stats and drop unique weapons.
  • The Astral Biome Chest also unlocks in the Dungeon, providing the Rogue class its own unique weapon, the Heavenfallen Stardisk.
  • In Revengeance Mode the Starlight Fuel Cell is dropped, which increases the damage of Adrenaline Mode by 15% and increases how much damage reduction the player gains when hit while the meter is full by 5%.
• After Golem is defeated, the player may visit the Abyss again to mine for Scoria Ore for the Hydrothermic set.
  • Once the player has collected Scoria Bars, they can now make Life Alloys, which are an essential crafing material.
    • They can be crafted with Cryonic Bars, Perennial Bars, and Scoria Bars.
  • The Miracle Fruit may also be crafted, increasing the player's health by 25.
  • The Rift Reeler becomes available, which is exceptionally useful for obtaining potion ingredients and other useful items.
  • Several plague-related enemies including the Plaguebringer miniboss also begin to spawn in the Jungle, providing Plague Cell Canisters.
• The player can now create an Advanced Display, the next Codebreaker component, and decrypt the Encrypted Schematic (Underworld).
  • The Encrypted Schematic (Underworld) is in the Underworld Bio-center Lab, which can be located with the Red Seeking Mechanism and contains post-Providence recipes.
• The player may then fight The Plaguebringer Goliath, Empress of Light, Duke Fishron, Ravager and the Lunatic Cultist afterwards.
  • The Plaguebringer Goliath drops Infected Armor Plating, which can be used to craft the weapons in the Jungle Schematic.
  • Ravager drops the Infernal Blood in Revengeance Mode, increasing the duration of the Rage Mode buff by 1 second, as well as Fleshy Geodes, extremely useful items for crafting.
  • Although the first four are not strictly necessary for mod progression, they are recommended to be fought in the order of Calamity's boss progression and the Boss Checklist Mod.
• Before fighting the Moon Lord, the player can use a Titan Heart at the Astral Beacon to summon and fight Astrum Deus.
  • Defeating Astrum Deus allows the player to mine the Astral Ore at the meteor in the biome and craft weapons as well as the Ethereal Core, boosting the player's mana by 50.

Post-Moon Lord

• Upon defeating the Moon Lord, several things will occur:
  • Moon Lord drops a Celestial Onion, which increases the player's accessory slots by one, like the Demon Heart.
    • Moon Lord's death additionally generates new Planetoids made of a large amount of Luminite and Exodium Cluster.
  • Several items can now be crafted with Luminite:
    • Many elemental themed weapons for all five classes can be obtained, along with new accessories.
    • Empyrean armor can be made as a Rogue alternative to the Lunar Fragment armors.
  • Several Profaned enemies will begin to spawn in both the Hallow and Underworld biomes. These enemies drop Unholy Essences, which can be used to craft many new items.
  • Phantom Spirits will begin to spawn in the Dungeon, similarly to Dungeon Spirits, that drop Polterplasm which can be crafted into Supreme Mana Potions.
  • The Profaned Guardians, Dragonfolly, and Polterghast can now be challenged, although it is recommended that Polterghast be fought later on.
    • Defeating the Dragonfolly will grant access to Effulgent Feathers, which can be crafted into the Blessed Phoenix Egg that is used to summon Yharon, Dragon of Rebirth, although it is highly recommended that the Player waits to fight him until The Devourer of Gods has been defeated.
    • The Red Lightning Container is dropped by the Dragonfolly in Revengeance Mode which is the third and final Rage upgrade, increasing the duration of the Rage Mode buff by 1 second.
  • The Rune of Kos can be crafted that is used to summon the three Sentinels of the Devourer, although it is also recommended that they are fought post-Providence.
  • The Cosmic Worm can be alternately crafted to summon The Devourer of Gods, though it's highly recommended that it should be fought after Polterghast (and optionally The Old Duke) are defeated.
• Once The Profaned Guardians are defeated, they will drop a Profaned Core, which is used to summon Providence, the Profaned Goddess.
• Providence, the Profaned Goddess can drop different loot depending on if she was summoned within The Hallow or within The Underworld.
  • Optionally the player can challenge Providence at night time, which will make the fight significantly harder but have additional drops.

Post-Providence, the Profaned Goddess

• Uelibloom Ore is now available, allowing the Player to obtain Tarragon armor.
• The items in the Underworld Schematic can now be crafted, including the next Codebreaker component, the Voltage Regulation System, which allows the decryption of the final schematic, Encrypted Schematic (Ice).
  • The Encrypted Schematic (Ice) is in the Ice Bio-center Lab, which can be located with the White Seeking Mechanism and contains recipes for post-Devourer of Gods weapons and the last Codebreaker component.
• An Elderberry can now be crafted which further again increases the player's max life by 25.
• Ravager, as well as enemies in the Brimstone Crag, become buffed and will now drop Bloodstone, allowing the player to create some of the items in the Bloodstone set.
  • The Brimrose can now be crafted with Bloodstone and Unholy Cores, which is a powerful mount that allows for infinite flight.
  • The Ravager will also now drop the Bloodflare Core and Necromantic Geodes, an upgraded version of the Fleshy Geode.
• Providence will drop the Rune of Kos, which is used to fight the three Sentinels of the Devourer.
  • Storm Weaver is fought in Space.
  • Ceaseless Void is fought in the Dungeon.
  • Signus, Envoy of the Devourer is fought in the Underworld.
• Polterghast is now recommended to be fought, and upon its death, the abyssal mini-bosses will now drop new items, allowing the player to obtain several powerful weapons and accessories.
  • After defeating Polterghast, the player can fight the 3rd tier of Acid Rain and challenge The Old Duke.
  • Polterghast will drop the final Adrenaline upgrade in Revengeance Mode, the Ectoheart, which increases the damage of Adrenaline Mode by 15% and increases how much damage reduction the player gains when hit while the meter is full by 5%.
  • Polterghast will also drop Ruinous Souls, which is used to craft Bloodflare armor, Omega Blue armor, several additional weapons, and the Phantom Heart, which is the final mana upgrade.
• The player can find the Terminus item at the bottom of the Abyss, which starts the Boss Rush event, although it is recommended that this be challenged once Supreme Witch, Calamitas and the Exo Mechs have been defeated.
• Upon defeating all three Sentinels of the Devourer, the Cosmic Worm can now be crafted, which is used to summon The Devourer of Gods.

Post-The Devourer of Gods

• After defeating The Devourer of Gods, many things will happen:
  • Combining Cosmilite Bars, Luminite Bars, Galactica Singularities, Exodium Clusters, and a Hardmode Anvil, the Cosmic Anvil can be crafted, which will grant the player access to the many high tiers of items available in the Calamity Mod.
  • The Frost Moon, the Pumpkin Moon and the Solar Eclipse are immensely buffed, with certain enemies now dropping Endothermic Energy, Nightmare Fuel and Darksun Fragments respectively.
    • Ascendant Spirit Essence, which is an essential crafting material, can be crafted with these three materials along with Polterplasm.
    • After fighting one of the buffed events, several items can be crafted with Cosmilite Bars and Endothermic Energy/Nightmare Fuel or Darksun Fragments which can help when fighting the second buffed event, and then the third buffed event.
    • With this, God Slayer armor, Silva armor, the weapons in the Ice Schematic, as well as several other powerful accessories and weapons can now be crafted.
• The player can now use the Ascendant Spirit Essence to craft Omega Healing Potions.
• Now, Yharon, Dragon of Rebirth should be challenged.

Post-Yharon, Dragon of Rebirth

• Yharon will drop Drew's Wings, allowing the player to trade off sprinting abilities with a massive boost to flight time and acceleration.
  • If the player wishes to have sprinting abilities, they can make the Celestial Tracers.
• Auric Ore is now available underground, allowing the player to obtain Auric Tesla armor as well as many new weapons.
  • A Dragonfruit can now be crafted which is the final health upgrade, increasing the player's max life by 25.
• The Murasama, a powerful true Melee weapon located in the Underworld Bio-center Lab, can now be swung.
• The final Codebreaker component, the Auric Quantum Cooling Cell can be crafted, allowing the player to contact Draedon and challenge the Exo Mechs.
• The player can craft the Altar of the Accursed and use Ashes of Calamity on it to summon Supreme Witch, Calamitas.

Post-Supreme Witch, Calamitas/Exo Mechs

• The Brimstone Witch NPC can spawn once Supreme Witch, Calamitas is defeated. She can enchant the player's weapons to give them new and powerful effects.
• Upon defeating the Exo Mechs, Exo Prisms will be dropped and Miracle Matter can be crafted, allowing the to player combine the Ancient Manipulator, Cosmic Anvil, Hardmode Forge, and Tinkerer's Workshop to obtain Draedon's Forge and craft several Exo-Weapons.
• Materials dropped by both Supreme Witch, Calamitas and the Exo Mechs allow for Shadowspec Bars to be crafted, used to craft endgame-tier items, allowing the player to obtain Demonshade armor, it is at this point that the player should be strong enough to face off against the Boss Rush.
  • Upon defeating the Boss Rush, the player can obtain a special reward, with most playthroughs ending at this point.
• While optional, the player can head to the Abyss and attempt to fight the Primordial Wyrm.

The Endgame

After the player defeats the Boss Rush (and optionally the Primordial Wyrm), they are in the endgame now. At this point, the player has several options of where to keep going, including playing other mods or starting over their adventure with the Calamity Mod as a different class.

Some things you can try:

• Start a new playthrough in higher difficulty (Normal Mode < Expert Mode < Master Mode < Revengeance Mode < Death Mode), and Infernum Mode, which is a community mod maintained by Dominic Karma that increases the difficulty of the game.
• Change the health of bosses in the mod's config.
• Attempt no-hitting all bosses in Revengeance Mode or Death Mode.
• Complete all Angler fishing quests added by the Calamity Mod.
• Construct buildings or settings from the Lore such as the Sea Kingdom or the Archmage's castle.
• Try to beat Revengeance Mode or Death Mode without rage or Adrenaline.
• Beat multiple bosses at once.
• Learn speedrunning.
• Create pixel art of content added by the Calamity Mod.
• Acquire every single weapon and tool.
• Obtain every single armor and vanity set.
• Gather up every single accessory.
• Collect every single Trophy, Boss Mask and Banner.
• Collect every Relic if playing on Master Mode or Revengeance Mode.
• Gather up every single Music Box.
• Mine out every single ore that the Calamity Mod adds.
• Suggest ideas in the Calamity Mod Discord.
• Find bugs and glitches so the mod developers can fix them for everyone's benefit.
• Create a wardrobe of different costumes that resemble certain characters.
• Dig out every single block in a world.
• Prepare for future updates.
• Contribute to the Wiki!

The Calamity Mod is an ever-changing project, with more content to come in the future for both the current progression of the Mod and beyond Supreme Witch, Calamitas. The player can prepare themselves for when the mod updates to add bosses and/or events such as Yharim himself.

See Also

• Game progression Guide on the Vanilla wiki