Simple Spawn Swapper
This mod was made to make it easy for modders to spawn custom creatures around in story mode by letting you swap some of the normal creature spawn with the new creatures.
0: Create your own mod folder Mod Directories [rainworldmodding.miraheze.org]
1: Create a txt file in your mod’s main folder (Next to the modinfo.json)
2: Name that txt file "SpawnSwaps"
3: Inside that txt file write a line in this format "PinkLizard-RedLizard(100%)"
4: The first creature name is what will be replaced and the second name is what it will be replaced with
5: The number with the % is the odds that it will swap a spawn for the new type
6: You can optionally add a priority number at the end so that it will be used before a different swap, "PinkLizard-RedLizard(100%)1" the default priority is 5