ExponentialItemsReloaded v2.0 (Multi-Mode Scaling Edition)

A modernized Risk of Rain 2 mod that enhances item stacking mechanics with configurable scaling modes.

Credits & Acknowledgements:
Originally developed by CryptidLabs on Thunderstore.
Version 2.0 overhaul by Brollix introduces multi-mode scaling algorithms (Linear, Sqrt / Sublinear, Exponential, and Off), configurable multipliers, and safety protections against uncontrollable stat spikes.

What's New in v2.0?

The original mod only supported pure exponential base-2 stacking (2^n), which quickly ballooned items like Soldier's Syringe (Attack Speed) into game-breaking numbers. Version 2.0 introduces 4 selectable stacking modes:

1. Sqrt Mode (Sublinear Square Root Curve) - Recommended

• Formula: Stack(n) = n + round(A * sqrt(n)) (where A is configurable via Sqrt Factor, default: 2.2).
• How it feels:
  • 1st pickup: 3 stacks (+45% attack speed / early power boost)
  • 2nd pickup: 5 stacks (+75%)
  • 3rd pickup: 7 stacks (+105%)
  • 4th pickup: 8 stacks (+120%)
  • 5th pickup: 10 stacks (+150%)
  • 10th pickup: 17 stacks (+255%)
• Why it's great: Gives an immediate agile start (especially on survivors like Huntress) while gracefully tapering off so you never clip through walls or freeze the game with particle overload.

2. Linear Mode (y = M * x)

• Formula: Each pickup grants a configurable amount (default: M = 2).
• How it feels: 2, 4, 6, 8, 10, 12... stacks.
• Why it's great: Clean, predictable "double loot" progression.

3. Exponential Mode (Base^x)

• Formula: Classic exponential scaling (1, 2, 4, 8, 16, 32...).
• Why it's great: The chaotic sandbox mode for explosive runs.

4. Off Mode (Vanilla 1x)

• Preserves the mod installed while reverting to 1x vanilla behavior.

Configuration

Found in BepInEx/config/com.cryptidlabs.exponentialitemsreloaded.cfg:

[General]

## Stacking calculation mode: Off, Linear, Sqrt, or Exponential
# Setting type: StackingMode
# Default value: Sqrt
# Acceptable values: Off, Linear, Sqrt, Exponential
Stacking Mode = Sqrt

## Multiplier for Linear mode (e.g. 2 gives 2x stacks: 2, 4, 6, 8...)
# Setting type: Int32
# Default value: 2
Linear Multiplier = 2

## Sublinear bonus factor for Sqrt mode (e.g. 2.2 gives 3, 5, 7, 8, 10, 11, 13...)
# Setting type: Single
# Default value: 2.2
Sqrt Factor = 2.2

## If true, custom stacking only applies while Artifact of Exponents is enabled. If false, the mod is always active.
# Setting type: Boolean
# Default value: true
Require Artifact Enabled = true

## Maximum item stack count this mod will try to reach.
# Setting type: Int32
# Default value: 4096
Max Stack Size = 4096

## Exponential base for Exponential mode (e.g. 2 gives 1,2,4,8... 3 gives 1,3,9,27...)
# Setting type: Int32
# Default value: 2
Base Size = 2

[Item Filters]
Affect White Items = true
Affect Green Items = true
Affect Red Items = true
Affect Boss Items = true
Affect Lunar Items = true
Affect Void Items = true
Affect Tierless Items = false
Affect Temporary Items = false
Affect Equipment = false

Building from Source

Requires .NET 8+ / .NET SDK:

dotnet build -c Release

The output DLL will be located at bin/Release/netstandard2.1/ExponentialItemsReloaded.dll.

License

GPL-3.0 / Open Source.

Changelog

All notable changes to ExponentialItemsReloaded V2 will be documented in this file.

[2.0.2] - 2026-10-20

Documentation & Presentation

• Cleaned up README.md for r2modman and Thunderstore: removed redundant configuration dumps, technical build instructions, and repetitive license blocks.
• Added structured CHANGELOG.md.

[2.0.1] - 2026-10-20

Release

• Renamed Thunderstore package to ExponentialItemsReloaded_V2 under brollixTeam.
• Added tags: ai-generated, items, artifacts, tweaks, mods.

[2.0.0] - 2026-10-20

Added

• Multi-Mode Stacking Engine:
  • Sqrt Mode: Sublinear progression formula Stack(n) = n + round(A * sqrt(n)) providing strong early tempo without late-game game crashes.
  • Linear Mode: Configurable multiplicative step (Linear Multiplier, default: 2).
  • Exponential Mode: Classic exponential doubling curve (Base Size, default: 2).
  • Off Mode: Easily revert to vanilla 1x behavior without uninstalling the mod.
• Safety caps: Configurable Max Stack Size ceiling (default: 4096).
• R2API & Modern RoR2 Compatibility: Updated targeting .NET Standard 2.1 and current BepInEx / R2API dependencies.