File: Rimworld.v1.4.3613.incl.all.dlc.zip ... | Trusted |

: Ensure the folders for Royalty , Ideology , and Biotech are present in the Data directory. You can verify their status in the Mods menu within the game's main screen.

: Massive content additions that feel like official DLC. File: RimWorld.v1.4.3613.Incl.ALL.DLC.zip ...

If your goal is to code a new feature for this version of the game: : Ensure the folders for Royalty , Ideology

If you are trying to "develop" or add features to this specific build: : Ensure the folders for Royalty

Depending on whether you are looking to set up this specific version or develop new content for it, here is how to proceed: Setting Up the Environment

: Improves pawn AI behavior for cleaning and hauling.

: A highly recommended Mod Manager to handle load orders and dependencies without launching the game.