diff --git a/res/e4/main.lua b/res/e4/main.lua
new file mode 100644
index 000000000..813e0f55a
--- /dev/null
+++ b/res/e4/main.lua
@@ -0,0 +1,61 @@
+require "multis"
+require "e3a.frost"
+
+function process(orders)
+  local confirmed_multis = { }
+  local suspected_multis = { }
+  
+  if open_game(get_turn())~=0 then
+    print("could not read game")
+    return -1
+  end
+  init_summary()
+
+  -- run the turn:
+  if read_orders(orders) ~= 0 then
+    print("could not read " .. orders)
+    return -1
+  end
+
+  -- plan_monsters()
+  local mon = get_faction(666)
+  if mon ~= nil then
+    mon.lastturn = get_turn()
+  end
+
+  if nmr_check(config.maxnmrs or 30)~=0 then
+    return -1
+  end
+
+  process_orders()
+  if xmas2009~=nil then
+    xmas2009()
+  end
+
+  -- create new monsters:
+  spawn_dragons()
+  spawn_undead()
+
+  if get_turn()>=config.kill_after then
+    kill_nonstarters()
+  end
+  -- post-turn updates:
+  update_guards()
+  update_scores()
+  frost.update()
+
+  local localechange = { en = { "L46o" } }
+  change_locales(localechange)
+
+  -- use newfactions file to place out new players
+  -- autoseed(config.basepath .. "/newfactions", false)
+
+  write_files(config.locales)
+
+  file = "" .. get_turn() .. ".dat"
+  if eressea.write_game(file)~=0 then
+    print("could not write game")
+    return -1
+  end
+  return 0
+end
diff --git a/res/e4/modules.lua b/res/e4/modules.lua
new file mode 100644
index 000000000..39a1d7ca0
--- /dev/null
+++ b/res/e4/modules.lua
@@ -0,0 +1,4 @@
+require "spells"
+require "e3a.rules"
+require "e3a.markets"
+require "e3a.frost"