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Prerequisites

Before installing SpawnLogger, ensure you have the following:

MegaBonk

The base game must be installed and working

BepInEx 6.x

BepInEx IL2CPP version for Unity games
SpawnLogger requires BepInEx 6.x for IL2CPP (not the standard Mono version). Make sure you download the correct BepInEx build for Unity IL2CPP games.

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Installation steps

1

Install BepInEx

If you haven’t already installed BepInEx:
  1. Download BepInEx 6.x IL2CPP for Unity
  2. Extract the BepInEx folder to your MegaBonk game directory
  3. Run the game once to generate BepInEx configuration files
  4. Close the game after it reaches the main menu
Your MegaBonk directory should contain folders like BepInEx, MegaBonk_Data, and the game executable after extraction.
2

Download SpawnLogger

Obtain the SpawnLogger DLL file:
  • Download the latest SpawnLogger.dll from the releases page
  • Or compile from source if you’re building it yourself
The mod is currently at version 0.5.3.
3

Install the mod

Copy the mod file to the BepInEx plugins directory:
  1. Navigate to <MegaBonk Directory>/BepInEx/plugins/
  2. If the plugins folder doesn’t exist, create it
  3. Copy SpawnLogger.dll into the plugins folder
Your final path should look like:
MegaBonk/
├── BepInEx/
│   ├── plugins/
│   │   └── SpawnLogger.dll  ← mod goes here
│   ├── core/
│   └── config/
└── MegaBonk.exe
4

Launch the game

Start MegaBonk normally through Steam or your game launcher.BepInEx will automatically:
  • Load when the game starts
  • Initialize SpawnLogger
  • Apply Harmony patches to the game

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Verify installation

To confirm SpawnLogger is working correctly:
1

Check the BepInEx console

When the game launches, a console window should appear (if you haven’t disabled it). Look for these messages:
[Info   : BepInEx] Loading [SpawnLogger 0.5.3]
[Info   : SpawnLogger] Loading SpawnLogger v0.5.3 by Antiparty
[Info   : SpawnLogger] SpawnLogger loaded successfully!
The console window can be disabled in BepInEx settings, so don’t worry if you don’t see it. Check the log file instead.
2

Check the log file

If the console isn’t visible, check the log file:
  1. Navigate to <MegaBonk Directory>/BepInEx/LogOutput.log
  2. Open the file in a text editor
  3. Search for “SpawnLogger” to find the initialization messages
You should see the loading confirmation and successful patch application.
3

Start a game round

The ultimate verification is seeing the overlay in action:
  1. Start a new game or continue an existing save
  2. Begin a round and wait for objects to spawn
  3. Look for the overlay in the bottom-left corner of the screen
When chests spawn, you should see the tracker appear automatically.

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Troubleshooting

Symptoms: No SpawnLogger messages in the log fileSolutions:
  • Verify you’re using BepInEx 6.x IL2CPP (not the Mono version)
  • Ensure SpawnLogger.dll is in the correct plugins folder
  • Check that BepInEx itself is loading (you should see BepInEx messages in the log)
  • Try running the game as administrator
Symptoms: Mod loads but no overlay is visibleSolutions:
  • Make sure you’re in an active round (not in menus)
  • Wait for chests to spawn - the overlay appears when chests are detected
  • Check the log file for any error messages related to overlay creation
  • Verify your game resolution isn’t conflicting with the overlay position
Symptoms: Numbers don’t match what you see in-gameSolutions:
  • The mod resets between rounds - ensure you’re checking during active gameplay
  • Some objects may spawn outside your view but still be counted
  • Check the console/log for tracking messages to see what’s being detected
  • Try starting a fresh round to reset all counters
Symptoms: MegaBonk crashes when loading modsSolutions:
  • Ensure all dependencies are installed (BepInEx, Harmony)
  • Check for conflicts with other mods in the plugins folder
  • Review the LogOutput.log file for specific error messages
  • Try removing other mods temporarily to isolate the issue
If you encounter persistent issues, check the BepInEx log file at BepInEx/LogOutput.log for detailed error messages. The log will show exactly what went wrong during mod initialization.

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Next steps

Now that SpawnLogger is installed, head to the quickstart guide to learn how to use the overlay and understand what each counter represents.

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