Rein-StutterStunter icon


Eliminates game stuttering from garbage collection. Read the readme please.

Last updated 4 months ago
Total downloads 32588
Total rating 44 
Dependency string Rein-StutterStunter-2.1.1
Dependants 15 other mods depend on this mod

This mod requires the following mods to function

bbepis-BepInExPack-5.3.1 icon

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

Preferred version: 5.3.1

This Mod should not be used with under 6-8gb of RAM

This isn't a suggestion, or a joke. Don't do it. You open yourself up to crashes, and I'm not going to listen when you are sad your god run died due to this. If you want to understand why, read on below.

What it does

This mod addresses the stuttering that the game experiences periodically. Not everyone gets the stutters, but they tend to be made worse by the presence of mods.

With this mod installed you should be getting absolutely no stuttering outside of situations where your CPU/GPU are at maximum load.

Below I will explain how this all works for anyone interested.

What are the stutters?

A stutter is one (or more) lost frames that occur at somewhat regular intervals. Different computers will get the issue at different rates and severities.

Generally it will feel similar to dropped frames in a video. a few frames here and there every few seconds.

Regardless, if you get them they are quite irritating and distracting.

What causes the stutters?

Stutters are caused by something called garbage collection. Some brief history:

In the olden days programmers would allocate ram to store a value, and that ram would stay allocated until they released it.
This meant that if someone was doing things poorly, it was possible to a memory leak, where more and more memory is reserved and never released until the system ran out of ram.

Obviously, that was a problem. Pretty quickly people put together languages that would automatically detect when memory wasn't in use and release it.
The process of going through all the reserved memory and releasing what isn't needed is called garbage collection.

Here is the catch, garbage collection is not fast. There can be a lot of things to sort through, and the process of deciding what should be released and what should not isn't simple.

How does this mod fix the issue?

Garbage collection is a very necessecary step, and simply skipping it would be an awful idea. At the same time, garbage collection is the root cause of stuttering, and there isn't much we can do to make the game not stutter when garbage is collected.

However, the stutter is only really an issue if it happens while we are playing. If it occured during load screens, and while the game is paused then it would barely be noticeable.

That is what this mod does. While you are in a stage it tells the game to stop collecting garbage, and while a new stage is loading it allows the game to collect.

However, this means that while you are playing the game is actually leaking memory. On paper, it might be possible to use up enough memory between stages for problems to arise.

In practice though, the amount of memory leaked is tiny, and considering we rarely spend more than 15 minutes on a single stage the odds of running out of ram are quite low.

That isn't enough though. In addition to performing garbage collection when stages are loading, this mod also performs it while the pause menu is open.
In addition, the mod also tracks memory usage and will notify you in chat if it passes a warning threshold. If it passes a cap, it will notify you again and eventually force a garbage collection during gameplay.

As of right now the thresholds are not configurable, due to the potential for things to go wrong if bad values are entered.



  • Fixed collection not running properly between stages


  • Works with 1.0
  • Refactored to improve performance
  • Solved some weird bugs


  • Removed r2api dependency
  • Works with artifacts update.
  • Some cleanup.


  • Hidden Realms update compatibility
  • Removed the post processing config option (it was stupid lol)
  • Moved the hooks to a more logical location (Stage.OnEnable and Stage.OnDisable)


  • R2API and Bepinex update compatibility
  • Added 3 new config options that should not be touched, but are there for people who know what they are doing.


  • 10/10 update compatiblity.


  • This totally existed


  • Added config option for logging


  • Release

Available versions

Please note that the install buttons only work if you have compatible client software installed. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2020-9-5 2.1.1 14203 Install
2020-8-23 2.1.0 3307 Install
2020-3-31 2.0.0 5762 Install
2019-12-19 1.0.5 4566 Install