RimWorld Mods

Dynamic Flooding Mod

Author of the Dynamic Flooding Mod: TrueBlueSwablu

Rain can cause rivers, coasts, and lakes to flood. Puddles may also form from rain. This acts like another ‘layer’ like snow.

Dynamic Flooding Mod features

Flood effects

  • Water will restrict movement and damage exposed items.
  • Water will gradually recede after rain ends.
  • Water can be blocked by buildings.
  • Unlimited flooding: Long periods of rain may flood large sections of the map.
  • Flooding will provide a bonus to mature plants, but damage immature (<0.25% growth) plants.

Wet Soil

Rain can also cause the soil to become wet, increasing the fertility and decreasing movement of all soil tiles. This can be added in mod options. Inspired by NPS.

Performance Impact

Very little to none with just flooding enabled. This mod is intended to be lightweight.

Compatibility notes

Should not break with any other mods as the flood is just a layer like snow. Can safely be added to saves. Can be removed from saves if there is no flood present.


Sandstorms by NightmareCorporation.
This mod draws upon a lot of the codebase from Sandstorms and would not be possible without it. I don’t like sand. It’s coarse and rough and it gets everywhere. But the mod is pretty great.

Nature’s Pretty Sweet by tkkntkkns.
Inspiration of this mod. This mod tries to be a standalone/performance friendly implementation.


Version 1.5
Dynamic Flooding Mod is not updated to RimWorld 1.5

Older versions:

Hm, you're using an ad blocker...

We get it, ads are not what you’re here for. But ads help us keep the lights on. We deliver up-to-date mods, guides and plenty of RimWorld content at no cost to you. So, please, add us to your ad blocker’s whitelist to continue browsing the RimWorld Base. 

Please whitelist us on your ad blocker and

Get a lifetime ad-free experience with the purchase of any RimWorld merchandise from our store. 

Still seeing this message after making a purchase? Click here to fix it

Get your RimWorld T-Shirt!

Dress in RimWorld style. For you or your loved ones!