Packaging & Pak Pipeline

Once you’ve edited assets or data, you package them into a mod container the game loads. This section covers the pack/unpack workflow and the rules that decide which mod wins when two touch the same file.

In this section

• Pak pipeline - packing and unpacking, cooking, and the _P suffix that controls load order.
• Load order & conflicts - why two mods collide and how to reason about which one applies.

The packing tools live in Tools & Setup. If you’re distributing to players through a mod manager, also see Unreal Shimloader.