mochi-Risk_of_Vampire icon

Risk of Vampire

Introduce new mode. Inspired by Vampire Survivors.

Last updated 4 months ago
Total downloads 6173
Total rating 3 
Categories Survivors of the Void Gamemodes Server-side Client-side Mods
Dependency string mochi-Risk_of_Vampire-2.1.2
Dependants 0 other mods depend on this mod

This mod requires the following mods to function

bbepis-BepInExPack-5.4.19 icon

Unified BepInEx all-in-one modding pack - plugin framework, detour library

Preferred version: 5.4.19
tristanmcpherson-R2API-4.0.11 icon

A modding API for Risk of Rain 2

Preferred version: 4.0.11


Risk Of Vampire

This is mod for Risk of Rain2(Steam)

日本語は英語のあとに続きます。(See below for the Japanese version.)


A mod inspired by Vampire Survivors(Steam). With a number of changes, we aim to make the game a little more strategic.

When you open the chest, the item selection orb will appear. Two item choices will be drawn from {possessed items + one random item}, and you can choose from those options. By collecting the items you want in the first stage, those items will be given priority in subsequent chests. It will lead to success that select items strategically.

From Ver2.0, "Limited item slot" system is introduced. When the item slot limit is reached, only the possessed items will come out from the chests. Fill the slots with only the items you want.

To reduce the boredom of the early stages of Monsoon, we are increasing the number of early enemy spawns.
It has increased the amount of coins needed to open the chest. Besides that, we have made some difficulty adjustments.

I am adding items to the settings and changing the default values. If you update this mod, please check the settings and try default values.

If you have any problems or want to make adjustments, please contact GitHub or Risk of Rain2 modding Discord( My discord tag is mochi#9204.

Limited item slot system (Ver2.0.0 or higher)

The item slot limit has been introduced with reference to Vampire Survivors. By default, the slot limit for white item types is 5, and the slot limit for green item is 3. Game chat will display the count of owned items and slot limits.

After filling the limited slot, only the items you have will come out from the chest. Fill the slots with only the items you want.

Difficulty adjustment

It's easy because you can choose the item. Therefore, we have added more difficult difficulty levels than Monsoon.

  • When the difficulty level of vanilla is 100%, 200%, 300%
  • Difficulty 400%
  • Difficulty 450%
  • Difficulty 500%
  • Difficulty 550%
  • Difficulty 600%
  • Difficulty 650%
  • Difficulty 700%
  • In these difficulty levels, the difficulty level increase in stage change is lowered, and the difficulty level increase in time is increased.

Configurable changes

  • OSP Thureshold: One Shot Protection is set to 80% (adjustable), so you won't take more than 80% damage.
  • Invulnerable Time: After OSP is activated, you are invincible for 0.5second (adjustable).
  • Max Heal per Second: You can limit the amount of heal per second. If set to 1, it will behave the same as vanilla. Less than 1 is the act like you are having Corpse Bloom. The default is 1, which remains vanilla. If you exceed the maximum heal amount per second, you can carry over heal amount up to 200%.
  • Money Scaling: Scaling the price to open a chest.
  • Possessed Item Chance: The probability that your item will be added to the Item Picker lottery candidates. The higher it is, the easier it is for your items to appear as candidates.
  • The spawn rate of Scrapper, MultiShop, 3D Printer, Void Item Pod, and Altar of Luck can now be adjusted. It is also possible to set it does not appear. The total spawn amount combined with these can also be adjusted.
  • The upper limit of the item slot. It can be set for each white item and green item.
  • You can reload Config with F5 key.

Other changes

  • An item selection orb appears instead of an item from the box
  • Item selection orb options is selected from the items you have. Game make choice at the moment you open the orb. The options are determined by the item of the person who opened the orb.
  • The amount of HP increase for each Lv of the character is increased by 1.5 times. When the level goes up, HP will reach about (Original * 1.5).
  • The number of monster spawns is 1.25 times on enemy Lv 1-3.
  • Scaling the amount of money needed to open the box has increased significantly from 1.25 to 1.45


It is available. In multiplayer, we are developing with the assumption that everyone will include this mod. Please install this mod in host and clients. We have confirmed that people with this mod can multiplay without any problems.


Vampire Survivors(Steam)にインスパイアされたModです。多数の変更により、もう少し戦略性の高いゲームに変えることを目標としています。



Monsoonでの序盤の退屈さを軽減するために、序盤の敵のスポーン数を増やしています。 チェストを開けるのに必要なコインの量を、かなり増やしています。それ以外にも、いくつか難易度調整を行っています。


なにか問題がある場合や、調整が欲しい場合はGitHubかRisk_of_Rain2(JP) Discord( までお願いします。開発者のDiscord Tagはmochi#9204です。


Vampire Survivorsを参考にアイテムの枠上限が導入されました。デフォルトで白アイテム枠の上限が5, 緑アイテム枠の上限が3です。チャットに保持アイテムと枠の上限が表示されます。




  • バニラの難易度を100%, 200%, 300%とした場合
  • 難易度 400%
  • 難易度 450%
  • 難易度 500%
  • 難易度 550%
  • 難易度 600%
  • 難易度 650%
  • 難易度 700%
  • これらの難易度では、ステージ移動での難易度上昇を下げ、時間での難易度上昇を上げています。


  • OSP Thureshold: One Shot Protectionを80%(調整可)にしてあるので、80%以上のダメージを食らうことがありません。
  • Invulnerable Time: OSP発動後は、0.5秒(調整可)無敵です。
  • Max Heal per Second: 秒間ヒール量に制限をかけられます。1に設定するとバニラと同じ動作になります。1未満はコープスブルームの動作となります。デフォルトは1でバニラのままです。秒間ヒール量の上限を超えた場合、ヒールの持ち越しは200%までです。
  • Money Scaling: チェストを開ける値段のスケーリング。
  • Possessed Item Chance: 所持アイテムがItem Pickerの抽選候補に加えられる確率。高くするほど、所持アイテムが候補に出やすくなります。
  • Scrapper, MultiShop, 3D Printer, 運の祭壇, Void Item Podの出現率が調整可能になりました。出現しなくなる設定も可能です。これらを合わせた総出現量も調整可能です。
  • アイテム枠の上限。白アイテムと緑アイテムそれぞれに設定可能です。
  • F5キーでConfigを再読み込みできます。


  • 箱からアイテムの代わりにアイテム選択オーブが出現
  • アイテム選択オーブの選択肢が、手持ちのアイテムから選ばれるように変更。アイテム選択オーブを開けた瞬間に、開けた人のアイテムによって中身が決まります。
  • キャラクターのLvごとのHP上昇量を1.5倍。レベルが上がりきったとき、HPは約1.5倍になります
  • 敵のLv1~3でモンスターのスポーン数1.25倍
  • 箱を開けるのに必要なお金の量のスケーリングを1.25から1.45へかなり上昇


利用可能です。マルチプレイでは、全員がこのModを入れることを想定して開発しています。全員Modを入れてご利用ください。 Modが入った人同士で問題なく動くことを確認しています。



  • Add 4 more difficulty.
  • the difficulty level increase in stage change is lowered, and the difficulty level increase in time is increased.
  • You can now adjust the number of spawn of the Void pods.
  • Fixed so that only Void items can be seen from the Void keybox.


  • Fixed the lottery algorithm. The rarity of item picker choices is now unified.


  • Fix item picker's lock algorithm. Please update.


  • Boss drops and luck shrine drops are converted to void potentials(item picker).


  • Limited item slot system is introduced.


  • Configs are now synced during multiplayer. Always refer to the host's config.
  • Green and red items are now guaranteed when you open the large and legendary chests.
  • The spawn rate of Scrapper, MultiShop, 3D Printer, and Altar of Luck can now be adjusted.


  • Update Readme and config description.


  • Used items(Item tagged with No Tier) have been excluded from the lottery candidates.


  • Add Ephemeral Coins mod as dependency mod for game balance.


  • The probability that a boss item will be added to item picker has been reduced to 1/10.
  • Lunar items are no longer added to candidates.


  • Update Readme


  • First Release.

Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2022-3-22 2.1.2 2217 Version 2.1.2 Install
2022-3-22 2.1.1 27 Version 2.1.1 Install
2022-3-20 2.1.0 709 Version 2.1.0 Install
2022-3-19 2.0.3 337 Version 2.0.3 Install
2022-3-19 2.0.2 420 Version 2.0.2 Install
2022-3-18 2.0.1 114 Version 2.0.1 Install
2022-3-14 1.0.9 816 Version 1.0.9 Install
2022-3-13 1.0.8 543 Version 1.0.8 Install
2022-3-13 1.0.7 31 Version 1.0.7 Install
2022-3-13 1.0.6 101 Version 1.0.6 Install
2022-3-13 1.0.5 65 Version 1.0.5 Install
2022-3-13 1.0.4 43 Version 1.0.4 Install
2022-3-13 1.0.3 37 Version 1.0.3 Install
2022-3-13 1.0.2 50 Version 1.0.2 Install
2022-3-11 1.0.1 534 Version 1.0.1 Install
2022-3-11 1.0.0 129 Version 1.0.0 Install