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

: Massive content additions that feel like official DLC.

If you are trying to "develop" or add features to this specific build: File: RimWorld.v1.4.3613.Incl.ALL.DLC.zip ...

If you are looking for "must-have" features to add via existing mods for this build, consider: : Massive content additions that feel like official DLC

: Extract the .zip contents to a folder. This version is often used for stability in long-running modded playthroughs before the jump to version 1.5. : A library almost every feature mod uses

: A library almost every feature mod uses to "patch" or modify existing game methods at runtime. Recommended QoL Features for 1.4

: Since this is version 1.4, you must use mods specifically tagged for 1.4. You can find these on the RimWorld Steam Workshop by filtering for that version, or on Nexus Mods . Developing New Features (Modding)

If your goal is to code a new feature for this version of the game: