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Idle Slayer Wiki

Looking for help with Divinities? Check out our Divinity Tier List.

This page attempts to categorize all the Ascension Upgrades as a general guide to what is worth buying when.

I assume a mix of active and idle play here. If you never turn off your game or only seldomly open it to check in you may want to skip some of my recommendations. Read descriptions before you buy something to avoid wasting SP. You cannot really screw up your purchasing order though and everything is useful in its own way. Experiment!

Last updated: v4.0.5

Visualization (v4.0.0)



Tier 1

These upgrades are all very cheap, enjoy that early game.

(Corresponding Color in Visualization: White)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Permanent Slayer.png Permanent Slayer 4 SP Permanently unlocks the Start Adventure and Enemy Realm upgrades, so enemies can spawn from the start of any Ascension.
Soul Gatherer Bundle.png Soul Gatherer Bundle 6 SP Permanently unlocks Souls Flask and Soul Gatherer upgrades.
Permanent Quests.png Permanent Quests 5 SP All Quests bundles are unlocked permanently across all Ascensions.
Soul Reaper.png Soul Reaper 10 SP Increase the amount of Souls that you gather by 1% for every Slayer Point you got since you started playing the game.
True Idle Slayer.png True Idle Slayer 5 SP You slay 50% more enemies while the game is closed.
Boost Kill.png Boost Kill 10 SP You gain double Souls for every kill while using the Boost.
Mining Jewels.png Mining Jewels 10 SP Gain 5% bonus CpS.
Bullet Time.png Souls Bonus 5 SP Increase the active time of Random Events by 40%.
Reinvest.png Reinvest 15 SP Each Coin you pick up gives you 25% of your current CpS.
Sword Edge.png Sword Edge 25 SP You gain +1% Souls while the game is closed for every Sword level.
Ancient Slayer.png Ancient Slayer 35 SP Your Ascension CpS Bonus is boosted by 250%.
Monolith.png Monolith 15 SP Increase Soul gain while the game is closed by 20%.
Idle Earrings I.png Idle Earrings I 20 SP Increase CpS while the game is closed by 25%.
Random Box Magnet.png Random Box Magnet 15 SP Random Boxes will hover on top of your head for a few seconds.
Special Random Box Magnet.png Special Random Box Magnet 25 SP Special Random Boxes will hover on top of your head for a few seconds.
ASHPD.png Portals 25 SP You gain the ability to open Portals to new Dimensions.
Skill cooldown: 8 hours.


Tier 2

This stuff is still pretty inexpensive and really helps you out.

(Corresponding Color in Visualization: Light Red)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Red Ore.png Red Ore 30 SP Gain 10% bonus CpS.
Boost Coin.png Boost Coin 25 SP You gain double Coins while using the Boost.
Cheap Cooldown.png Cheap Cooldown 25 SP Every Coin you pick up will decrease your Boost cooldown by 2%.
Bullet Time.png Slowmo Bonus 40 SP Increase the active time of Random Events by 40%.
Augmented Soul Gatherer.png Augmented Soul Gatherer 50 SP Increase the amount of Souls received for slaying an enemy ingame by 125%.
Blue Ore.png Blue Ore 20 SP Gain 10% bonus CpS.
Green Ore.png Green Ore 35 SP Gain 8% bonus CpS.
Yellow Ore.png Yellow Ore 50 SP Gain 10% bonus CpS.
Soul Gem.png Soul Gem 25 SP Gain 20% Souls bonus.


Tier 3

Did you notice that really expensive belt? It is time. Make a beeline for Minions to start collecting free SP as soon as possible.

(Corresponding Color in Visualization: Yellow)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Legendary Belt.png Legendary Belt 800 SP Increase your bonus CpS by +5% per Achievement unlocked.
Soul Slash.png Soul Slash 450 SP Increase your bonus Souls by +0.1% per achievement unlocked.
Axe Edge.png Axe Edge 600 SP You gain +1% Souls while the game is closed for every Axe level.
Minions.png Minions 1,200 SP Unlocks the Minions tab and the White Knight.


Tier 4

You've just bought your first upgrade costing over 1,000 SP. Look back at all the cheap stuff you ignored so far above Legendary Belt. You should get some of that.

(Corresponding Color in Visualization: Lime Green)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Money Laundering.png Money Laundering 25 SP Each Coin you pick up gives you 10% of your current CpS.
Idle Earrings II.png Idle Earrings II 25 SP Increase CpS while the game is closed by 25%.
Purple Ore.png Purple Ore 40 SP Gain 10% bonus CpS.
Cheap Darkness.png Cheap Darkness 30 SP All enemy evolutions are 50% cheaper.
Dagger Edge.png Dagger Edge 75 SP You gain +1% Souls while the game is closed for every Dagger level.
Stocks Buyer.png Stocks Buyer 50 SP Each Coin you pick up gives you 15% of your current CpS.
Every Day Counts.png Every Day Counts 50 SP You gain 1% bonus CpS for each day that passed since you started playing. (100 days maximum)
Bullet Time.png Bullet Time 250 SP Increase the active time of Random Events by 40%.
Idle Earrings III.png Idle Earrings III 100 SP Increase CpS while the game is closed by 15%.
ASHPD.png Portal Traveler 200 SP Decrease the Portal skill cooldown to 4 hours.
This will also replenish your current portal cooldown.
Idle Earrings IV.png Idle Earrings IV 250 SP Increase CpS while the game is closed by 20%.
Idle Earrings of Death.png Idle Earrings of Death 250 SP You slay 20% more enemies while the game is closed.


Tier 5

Stop! Hammer Bow Time!

Depending on how active you are you may or may not want to skip the bow bundle for now. It is really good for active players, but you do need to constantly fire it yourself. There is no autofire.

(Corresponding Color in Visualization: Royal Blue)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Bow bundle:

Image Name Cost Description
Sacred Book of Projectiles.png Sacred Book of Projectiles 1,000 SP Unlock the ability to use the Bow. Press the screen while being airborne to fire an arrow.
New upgrades for your Bow will appear by leveling up the bow as well.
Bring Hell.png Bring Hell 600 SP Increase the chance of spawning enemies by 20%.
Stability.png Stability 4,000 SP Unlocks the ability to fire arrows while using the Boost.
ASHPD.png Mystic Valley 1,200 SP Unlock the Mystic Valley Dimension. Use the Portal to get there!
Warning: Not every enemy can be slayed with the sword in this Dimension!
Enchanted Arrows.png Enchanted Arrows 600 SP Allows you to kill spiritual foes such as Wildfires by using the bow.
Triple Shot.png Triple Shot 3,000 SP Fire three arrows instead of a single one.


Tier 6

Your White Knight looks a bit lonely, go get him a friend!

(Corresponding Color in Visualization: Light Blue)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Dark Wand.png Dark Wand 2,000 SP Gain 10% bonus CpS.
Dark Wizard.png Dark Wizard 2,500 SP Unlock the Dark Wizard Minion.
Doesnt Matter to Me.png Doesn't Matter to Me 150 SP Get a permanent 3% chance of spawning a Ruby instead of a Coin.
A Ruby has a value of 15 coins.
Map.png Map 150 SP The destination name will be displayed on top of every Portal.
Ethereal Wand.png Ethereal Wand 500 SP Gain 5% bonus CpS.
Dual Randomness.png Dual Randomness 300 SP Unlock the Dual Randomness Random Event. It will spawn two Random Boxes next to each other.
This event can be chained infinitely if you're lucky!
Coins In The Box.png Coins In The Box 350 SP Quintuples the coins that a Random Box can give you.
Royalties.png Royalties 400 SP Each Coin you pick up gives you 5% of your current CpS.
Lunar Idle Earrings.png Lunar Idle Earrings 950 SP Increase CpS while the game is closed by 15%.
Solar Idle Earrings.png Solar Idle Earrings 1,000 SP You slay 20% more enemies while the game is closed.
Book of Efficiency I.png Book of Efficiency I 500 SP Doubling your offline Coin gains also grants 25% extra offline Slayer Points gains.


Tier 7

By now you have enough total SP to make Soul Reaper II worth getting.

(Corresponding Color in Visualization: Orange)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Silver Money Amulet.png Silver Money Amulet 1,600 SP Gain 10% bonus CpS.
Golden Money Amulet.png Golden Money Amulet 2,000 SP Gain 12% bonus CpS.
Soul Reaper II.png Soul Reaper II 1,000 SP Increase the amount of Souls that you gather by 0.25% for every Slayer Point you got since you started playing the game.
Soul Amulet.png Soul Amulet 3,000 SP Your Ascension CpS Bonus is boosted by 100%.


Tier 8

There are more Minions we need to get!

(Corresponding Color in Visualization: Dark Green)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Rock And Stone.png Rock And Stone 15,000 SP Unlock the Stone Golem Minion.
Embrace The Fear.png Embrace The Fear 6,500 SP All enemy evolutions are 25% cheaper.
Skeleton.png Skeleton 8,000 SP Unlock the Skeleton Minion.
Book of Efficiency II.png Book of Efficiency II 5,000 SP Doubling your offline Coin gains also grants 25% extra offline Slayer Points gains.
Sword Edge II.png Sword Edge II 1,850 SP You gain +0.5% Souls while the game is closed for every Sword level.
Doomed.png Doomed 2,500 SP Increase the chance of spawning enemies by 30%.
Saved.png Saved 2,500 SP You slay 25% more enemies while the game is closed.


Tier 9

Jumps in Cost are so large now you mostly end up buying things in order from least to most expensive anyways - this tier is just here for completions sake. A major exception is the Factory, since that dimension is amazing for soul gathering purposes.

(Corresponding Color in Visualization: Dark Red)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Wall Breaker.png Wall Breaker 3,500 SP Increase CpS while the game is closed by 50%.
Permanent Supply Boxes.png Permanent Supply Boxes 4,000 SP After buying a food box, it will remain unlocked permanently.
King of The Sea.png King of The Sea 6,500 SP Get a permanent 2% chance of spawning a Sapphire instead of a Coin.
A Sapphire has a value of 25 Coins.
Terra Idle Earrings.png Terra Idle Earrings 7,500 SP Increase CpS while the game is closed by 35%.
ASHPD.png ASHPD 5,000 SP Decrease the Portal skill cooldown to 2 hours.
This will also replenish your current portal cooldown.
Safety First.png Safety First 8,000 SP Some pitfalls in the Bonus Stage will be covered to prevent you from falling.
Chest Hunt Saver.png Chest Hunt Saver 5,000 SP A Saver will spawn in a Chest during the Chest Hunt Minigame. If you find it, it will repel the next Mimic.
Bullet Time.png Roll The Dice 16,500 SP Random Boxes will appear 20% more frequently.
Tornado of Souls.png Tornado of Souls 20,000 SP Gain 15% Souls bonus.
Bullet Time.png Premium Time 25,000 SP Increase the active time of Random Events by 20%.
Knight Services.png Knight Services 7,500 SP Get 0.5% CpS Bonus per every level of the Minion White Knight.
High Alchemy.png High Alchemy 12,000 SP Get 1% CpS Bonus per every level of the Minion Dark Wizard.
Gemstone Rush.png Gemstone Rush 10,000 SP Unlock the Gemstone Rush Random Event which increases the spawn rate of unlocked gemstones for a while.
Bag.png Bag 10,000 SP Unlock the Bag where you can store Materials you gather to craft new Items.
Materials can only be gathered while actively playing and from defeating certain enemies.
Blue Sparkle.png Blue Sparkle 6,000 SP Increase the spawn rate of Sapphires by 3%.
ASHPD.png Factory 140,000 SP Unlock the Factory Dimension. Use the Portal to get there!
Warning: Not every enemy can be slayed with the sword in this dimension!
Human After All.png Human After All 60,000 SP Unlock the Goo Mutant Minion.
Oblivion Idle Earrings.png Oblivion Idle Earrings 23,000 SP Increase CpS while the game is closed by 40%.
Augmented Boost Kill.png Augmented Boost Kill 100,000 SP Makes the Boost Kill ascension upgrade 100% more effective.
Super Chest Souls.png Super Chest Souls 35,000 SP Increase Chest Hunt Souls by 250%.
Soul Silver.png Soul Silver 35,000 SP Increase the amount of Silver Random Boxes when activated by +1.
Book of Efficiency III.png Book of Efficiency III 50,000 SP Doubling your offline Coin gains also grants 25% extra offline Slayer Points gains.
Idle Earrings of Unity.png Idle Earrings of Unity 45,000 SP Increase CpS while the game is closed by 50%.
Boost Blood.png Boost Blood 50,000 SP Enemies will drop 25% more Coins for slaying them.
Mega Horde.png Mega Horde 175,000 SP Upgrades the Horde Random Event to include nonflying enemies.
Blessing of Kratos.png Blessing of Kratos 95,000 SP Gain 10% bonus CpS.
Divinities.png Divinities 200,000 SP Unlock the Divinities tab. Here you can reset your Minions back to level 1 to earn Divinity Points and buy Divinities with them.
Critical Culling.png Critical Culling 150,000 SP Unlock Critical Culling which gives you 15% chance of getting double souls every time you kill an enemy.
Critical Culling also works while idle.
Muscle Memory.png Muscle Memory 35,000 SP Every upgrade that increases the attack speed of the Bow remains unlocked across every Ascension.
Bonus Rewards.png Bonus Rewards+ 1,250,000 SP At the end of every section of the platformer Bonus Stage, a normal Random Box will appear.
Critical Training.png Critical Training 350,000 SP Increase the chance of doing critical hits by 4%.
Critical Study.png Critical Study 350,000 SP Increase the chance of doing critical hits by 4%.
Critical Practice.png Critical Practice 350,000 SP Increase the chance of doing critical hits by 4%.
Book of Efficiency IV.png Book of Efficiency IV 500,000 SP Doubling your offline Coin gains also grants 50% extra offline Slayer Points gains.
Mega Chest Souls.png Mega Chest Souls 1,500,000 SP Increase Chest Hunt Souls by 250%.
The Chosen One.png The Chosen One 650,000 SP Allows you to prestige Minions individually, but it only grants 80% Divinity Points if you do it that way.


Tier 10

A new world is opening up! It is Ultra Ascension Time! The optimal time for your first UA is at around 6 Ultra Slayer Points. Buying up Tiers 1-9 before Ultra Ascension will have you end up approximately at your 6th USP depending on how many missions your Minions have completed for you. All Upgrades beyond that will come slowly over following runs.

(Corresponding Color in Visualization: Dark Blue)
Note: The upgrades listed below are listed in suggested purchase order; from top to bottom.

Image Name Cost Description
Ultra Ascension.png Ultra Ascension 1,000,000 SP Unlock the Ultra Ascension. Ultra Ascending is similar to Ascending but also resets the Skill Tree, Quests, Minions and Slayer Points. Your first Ultra Ascension also makes new Ascension Upgrades visible on the Skill Tree.
Perfect Prestige.png Perfect Prestige 2,500,000 SP You'll get 100% Divinity Points for prestiging a Minion individually.
Book of Efficiency V.png Book of Efficiency V 5,000,000 SP Doubling your offline Coin gains also grants 30% extra offline Slayer Points gains.
Galas Bone.png Gala's Bone 600,000 SP Get 0.5% CpS Bonus per every level of the Minion Skeleton.
Advanced Cooking.png Advanced Cooking 2,000,000 SP Gain 5% bonus CpS.
Ramen.png Ramen 3,500,000 SP Gain 10% bonus CpS.
Stew.png Stew 4,000,000 SP Gain 12% bonus CpS.
Careful Slayer.png Careful Slayer 12,500,000 SP Increase the drop chance of Materials by 3%.
ASHPD.png Portal Dominum 5,000,000 SP You gain the ability to choose the destination of the Portal.
Climbing Boots.png Climbing Boots 750,000 SP Unlock the ability to perform Wall Jumps in Bonus Stages.
Master Chest Souls.png Master Chest Souls 1.50e8
150 M SP
Increase Chest Hunt Souls by 175%.
Gold Hammer.png Gold Hammer 1.80e8
180 M SP
Increase the duration of Craftable Temporary Items by 30%.


Last Tier

Do you really still need a tier list at this point? Buy this stuff approximately in this order I guess. How you prioritize some of these upgrades obviously depends on where exactly you aim to Ultra Ascend. E.g. don't buy Slash The Life *instead* of Eternal Rage, but buy it first if you intend to get both in the same UA. Also don't prioritize ultra over astral upgrades if you intend to UA soon.

(Corresponding Color in Visualization: Grey)

Image Name Cost Description
Astral Blessing.png Stones of Time 5 SP Unlock the Stones of Time where you can get great benefits for the obtained Ultra Slayer Points.
ASHPD.png Hot Desert 5 SP Unlock the Hot Desert Dimension. Use Portals to get there!
Orange Ore.png Orange Ore 5 SP Gain 6% bonus CpS.
Pink Ore.png Pink Ore 5 SP Gain 6% bonus CpS.
Ancient Quests.png Ancient Quests 5 SP Unlock a new Quest bundle.
Dangerous While Alone.png Dangerous While Alone 35 SP Every time you slay an enemy while the game is closed you get a +1.5% chance of slaying an unlocked Giant of the current Dimension instead of a normal enemy.
Blessing of Cronus.png Blessing of Cronus 50 SP Enable previously unlocked Divinities.
3 Rows.png 3 Rows 350,000 SP Spawn 3 rows of Coins instead of 2 when completing sections of the Bonus Stage.
Rage Mode.png Rage Mode 30,000,000 SP Unlock the Rage Mode ability. Go super fast and slay everything that's in front of you instantly. While you are in Rage Mode, you get x100 Souls!
Already Enraged.png Already Enraged 10 SP Increase Rage Mode ability duration by +10%.
Outrage.png Outrage 20 SP Increase the Souls multiplier while in Rage Mode by +10x.
Fury.png Fury 10 SP Unlock the Fury Random Event which reduces Rage Mode cooldown by 50%.
Giant Horde.png Giant Horde 50,000,000 SP Upgrades the Horde Random Event to include Giants.
Souls Surge I.png Souls Surge I 3.00e9 / 3 B SP Gain 20% Souls bonus.
Reincarnation.png Reincarnation 2.50e9 / 2.5 B SP Increase the chance of spawning enemies by 25%.
Souls Surge II.png Souls Surge II 5.00e9 / 5 B SP Gain 25% Souls bonus.
Astral Slayer.png Astral Slayer 1.00e9 / 1 B SP Unlock Astral Ascension Upgrades which are Ascension Upgrades that remain unlocked across Ultra Ascensions.
Village Key.png Village Key 2.00e7 / 20 M SP Unlock a new Craftable Temporary Item.
Astral Blessing.png Astral Blessing 6.00e7 / 60 M SP Keep the Stones of Time unlocked even after Ultra Ascending.
Slash The Life.png Slash The Life 3.00e9 / 3 B SP Increase the chance of doing critical hits by 3%.
Eternal Rage.png Eternal Rage 4.50e9 / 4.5 B SP Keep the Rage Mode unlocked even after Ultra Ascending.
Stone of Hope.png Stone of Hope 2.50e10 / 25 B SP Unlock a new Stone of Time.
Mastery of Multipliers.png Mastery of Multipliers 1.00e9 / 1 B SP Increase the 9x Random Event multiplier to 10x.
Platform Beginner.png Flawless 1.00e10 / 10 B SP Get two more Random Boxes at the end of the Bonus Stage if you don't fall off in any section.
Rare Soul Vase.png Rare Soul Vase 7.00e8 / 700 M SP Increase Soul gain while the game is closed by 15%.
Magic Beetle Box.png Magic Beetle Box 3.00e10 / 30 B SP Unlock a bunch of magic beetle upgrades.
Uncontrolled Anger.png Uncontrolled Anger 1.00e10 / 10 B SP Increase Rage Mode ability duration by +20%.
Endless Aggression.png Endless Aggression 1.50e10 / 15 B SP Increase Rage Mode ability duration by +25%.
BadTempered.png Bad-Tempered 5.00e10 / 50 B SP Increase the Souls multiplier while in Rage Mode by +50x.
Triple Silvers.png Triple Silvers 2.00e10 / 20 B SP Spawn 3 Silver Random Boxes instead of 2 with the Tria Randomness event.
Chemical X.png Chemical X 9.00e9 / 9 B SP Get 0.25% CpS Bonus for every level of the Minion Goo Mutant.
Magical Temporary Item.png Magical Temporary Item 8.50e9 / 8.5 B SP Craftable Temporary Items will also work on the Bonus Stage.
Leadership Master.png Leadership Master 1.00e8 / 100 M SP Unlock the ability to send all your Minions on missions and to claim all the rewards at once.
Command Conquer.png Command & Conquer 7.50e8 / 750 M SP Decrease Minion mission costs by 95%.
Provisions.png Provisions 1.50e11 / 150 B SP Get +1 additional Minion levels after claiming the reward.
Silk Master.png Silk Master 5.00e10 / 50 B SP Permanently unlock the Gloves and the Cape.
Gem Seller.png Gem Seller 5.50e10 / 55 B SP Gems will count towards Pick Up Coins Quests.
Gem Buyer.png Gem Buyer 8.50e10 / 85 B Coins will count towards Pick Up Gems Quests.
Unique Soul Vase.png Unique Soul Vase 6.50e10 / 65 B SP Increase Soul gain while the game is closed by 50%.
Ancient Treasures.png Ancient Treasures 5.00e11 / 500 B SP Unlock multiple new Permanent Craftable Items.
Wanders Path.png Wander's Path 1.00e12 / 1 T SP Get a 400% Souls bonus from Giants.
Collateral.png Collateral 1.50e12 1.5 T SP Quests which require you to kill enemies will increment by +2 per kill (In-game only).
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