# 3.1 Create Custom World (via Subscene)

You don’t create a brand-new world — you create a subscene on top of an existing world (e.g., Everon) and put all your content there. This keeps the base world intact while letting you add your own entities. :contentReference[oaicite:0]


# Steps (Everon example)

  1. Load a world

    • In Workbench, open World EditorLoad World and pick the terrain you want (e.g., Everon (ArmaReforger/worlds/Eden/Eden.ent)).
  2. Create a subscene

    • File → New World → choose Sub-scene (of current world)OK.
    • Save it in your addon, e.g. YourMod/Worlds/Life.ent.
  3. Create a mission header

    • Create a new mission .conf in your addon (e.g., YourMod/Missions/Life_Mission.conf) and set its World to the world you used in step 1 (e.g., Everon).
    • Use this mission header for testing on a dedicated server (you can copy GUID by right clicking on the config and copying the GUID).