diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fa328e..5405cb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - **levels:** assets are now loaded from an asset file
 
+- **levels:** World is now a gamecore World2D derivative
+
 ### Removed
 
 - **main:** All functions already provided by gamecore have been removed.
diff --git a/imperium-porcorum.love/scenes/levels/entities/parent.lua b/imperium-porcorum.love/scenes/levels/entities/parent.lua
index 8f5b4e1..95f3578 100644
--- a/imperium-porcorum.love/scenes/levels/entities/parent.lua
+++ b/imperium-porcorum.love/scenes/levels/entities/parent.lua
@@ -45,11 +45,11 @@ function Entity:update(dt)
 end
 
 function Entity:register()
-  self.world:addEntity(self, self.x, self.y, self.w, self.h)
+  self.world:registerActor(self)
 end
 
 function Entity:destroy()
-  self.world:removeEntity(self)
+  self.world:removeActor(self)
 end
 
 function Entity:canBounce(bounce)
@@ -105,7 +105,7 @@ function Entity:getCenter()
 end
 
 function Entity:purge()
-  self.world:removeEntity(self)
+  self:remove()
 end
 
 function Entity:setFilter()
@@ -124,7 +124,7 @@ function Entity:move(dt)
   self.onGround = false
   local xsp, ysp = self.xsp * dt, self.ysp * dt
   local cols, cols_len
-  self.x, self.y, cols, cols_len = self.world:moveEntity(self, self.x + xsp, self.y + ysp, self.filter)
+  self.x, self.y, cols, cols_len = self.world:moveActor(self, self.x + xsp, self.y + ysp, self.filter)
 
   for i=1, cols_len do
     local col = cols[i]
diff --git a/imperium-porcorum.love/scenes/levels/players.lua b/imperium-porcorum.love/scenes/levels/players.lua
index ae33112..899b130 100644
--- a/imperium-porcorum.love/scenes/levels/players.lua
+++ b/imperium-porcorum.love/scenes/levels/players.lua
@@ -43,7 +43,7 @@ function PlayerManager:spawnPlayer(playerID)
 end
 
 function PlayerManager:getPlayers()
-  local itemList = self.scene.world:getEntities()
+  local itemList = self.scene.world:getActors()
   local playerList = {}
 
   for i,v in ipairs(itemList) do
@@ -56,7 +56,7 @@ function PlayerManager:getPlayers()
 end
 
 function PlayerManager:getPlayerByID(id)
-  local itemList = self.scene.world:getEntities()
+  local itemList = self.scene.world:getActors()
   local player
 
   if (id == nil) then
diff --git a/imperium-porcorum.love/scenes/levels/world.lua b/imperium-porcorum.love/scenes/levels/world.lua
index b14c396..0b37aba 100644
--- a/imperium-porcorum.love/scenes/levels/world.lua
+++ b/imperium-porcorum.love/scenes/levels/world.lua
@@ -1,9 +1,9 @@
-local World = Object:extend()
+local World2D = require "core.modules.world.world2D"
+local World = World2D:extend()
 
 local Obj = require "scenes.levels.entities"
 
 local Sti   = require "libs.sti"
-local Bump  = require "libs.bump"
 
 -- INIT FUNCTIONS
 -- All functions to init the world and the map
@@ -12,7 +12,7 @@ function World:new(scene, mapfile)
   self.scene  = scene
   self.map = Sti("assets/maps/" .. mapfile .. ".lua")
   self.obj = Obj
-  self.entities = Bump.newWorld(50)
+  self:initActors()
   self.backcolor = self.map.backgroundcolor or {0, 0, 0}
 
   self.activeObjects = 0
@@ -91,33 +91,6 @@ function World:addCollision(x, y, w, h, name)
   self.obj.Collision(self.scene, x, y, w, h, name)
 end
 
--- ENTITY MANAGEMENT FUNCTIONS
--- All BUMP2D wrappers
-
-function World:addEntity(entity)
-  return self.entities:add(entity, entity.x, entity.y, entity.w, entity.h)
-end
-
-function World:moveEntity(entity, x, y, filter)
-  return self.entities:move(entity, x, y, filter)
-end
-
-function World:removeEntity(entity)
-  return self.entities:remove(entity)
-end
-
-function World:queryRect(x, y, w, h)
-  return self.entities:queryRect(x, y, w, h)
-end
-
-function World:countEntities()
-  return self.entities:countItems()
-end
-
-function World:getEntities()
-  return self.entities:getItems()
-end
-
 -- MAP FUNCTIONS
 -- All map wrappers