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The Death Note is a tower you can build in World 3 from the Construction Table. The Death Note keeps track of how many mobs you have killed across all your characters and gives bonuses to collecting resources from mobs.
The Death Note is the 3rd unlockable building at the Construction Table and requires Explosive Salts and Forest Soul items to build it. Upon unlocking it, it will automatically start tracking your kills.
Death Note - Multikill and Damage Tiers
The Death Note is split into lists of mobs for each World. Each mob contributes towards that world's Multikill bonus.
Depending on how many kills you have of each mob, you'll gain a certain amount of points.
| Kills | Points |
|---|---|
| 25,000 | 1 Point |
| 100,000 | 2 Points |
| 250,000 | 3 Points |
| 500,000 | 4 Points |
| 1,000,000 | 5 Points |
| 5,000,000 | 7 Points |
| 100,000,000 | 10 Points |
| 1,000,000,000 | 20 Points |
1 Point contributes 1% of Multikill for that World per Damage Tier.
Your Damage Tier is based on how much extra damage you deal to mobs. You can view this in the AFK Menu when on a map with mobs.
For example, if you had a Damage Tier of 35 on the Green Mushrooms map, you're Multikill Bonus for World 1 would be multiplied by x35!
Multikill then effects a mob's common drop resource; so if killing a Green Mushroom drops 1-3 Spore Caps per kill, and you have a Multikill bonus of 1000%, it will now drop 10-30 per kill.
Multikill is extremely important for increasing your Printer Sampling Sizes.
Your Multikill also contributes towards your Death Note Kill Count.
Death Note Bonuses
There are several ways to increase the Death Note bonuses.
| Name | Boost | From | Notes |
|---|---|---|---|
 Rift Jocund |
2x Kills for Opening Portals and Deathnote | Pet Companions | Access from World 1 |
 KILL PER KILL |
+% extra Kills for Deathnote and opening portals to new maps. Shoutout to my Idle Skilling players who remember 'Kill Per Kill'! | Alchemy | Access from World 2 |
 |
1.20x Kill per Kill, making monster kills worth more for portals and Deathnote | Bonus Ballot | Access from World 2 |
General Multikill Bonuses
Since Multikill also contributes to increasing the Death Note kill count, these Multikill Bonuses are available in IdleOn:
| Name | Boost | From | Notes |
|---|---|---|---|
 Multikill Stamp |
% Base Multikill Rate | Stamps | Access from World 1 |
 Multikill Per Tier |
Multikill Per Tier | Arcade | Access from World 1 |
| Cullingo | +15% Total Multikill | Star Signs | Access from World 1 |
 Just Passing By |
+2% Multikill bonus for all characters | World 2 Achievements | Access from World 2 |
 Wazzzzam! |
+6% Multikill bonus for all characters | World 2 Achievements | Access from World 2 |
 MR MASSACRE |
+% Multikill per damage tier. Remember, damage tier is shown by the Purple Bar in AFK info, and multikill is bigtime for resources | Alchemy | Access from World 2 |
| SLOWERGY DRINK | +% Base Multikill per Multikill Tier for all worlds. Stack them skulls! | Alchemy | Access from World 2 |
 Utilitarian Capsule |
% Printer Sample Size, % Multikill per Tier, % Cash from Mobs | Post Office | Access from World 2 |
 Clammie Card |
% Multikill per tier | Cards | Access from World 4 |
 Suggma Card |
% Multikill per tier | Cards | Access from World 5 |
 Woodlin Spirit Card |
% Multikill per tier | Cards | Access from World 6 |
 Sovereign Emperor Card |
% Multikill per tier | Cards | Access from World 6 |
| The Salt Lick | +% Multikill Rate for all worlds. All of them! | The Salt Lick | Access from World 3 |
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