diff --git a/luprex/core/lua/teppygame.lua b/luprex/core/lua/teppygame.lua
new file mode 100644
index 00000000..278775dc
--- /dev/null
+++ b/luprex/core/lua/teppygame.lua
@@ -0,0 +1,41 @@
+maketangible('grass')
+
+if global.once("build grass") then
+  for y=0,4 do for x=0,y%2==1 and 3 or 4 do
+    tangible.build{class="grass",x=y%2==1 and 2*x+1 or 2*x+1,y=2*y+1,z=0,plane="main",graphic="grass"}
+    end end
+  end
+
+if global.once("walkable") then global.walkable={} end
+if global.once("walkable main") then global.walkable["main"]={} end
+
+
+function walkable(pl,x,y)
+  if not global.walkable then return false end
+  if not global.walkable[pl] then return false end
+  if not global.walkable[pl][y] then return false end
+  return global.walkable[pl][y][x] or false
+  end
+
+function setwalkable(pl,x,y,val)
+  if not global.walkable[pl][y] then global.walkable[pl][y]={} end
+  global.walkable[pl][y][x]=val
+  end
+
+if global.once("walkablexy") then for y=0,4 do for x=0,4 do setwalkable("main",x,y,true) end end end
+
+function player.move(actor,place,dx,dy)
+  local _,pl,x,y,_,_=tangible.animstate(actor)
+  print("Checking walkable "..pl.." "..x.." "..y.." is "..(walkable(pl,x+dx,y+dy) and "true" or "false"))
+  if not walkable(pl,x+dx,y+dy) then print("Not walkable") else
+    tangible.animate(place, {action="walk", dx=dx,dy=dy})
+    local lis=tangible.near(actor,1,false,true)
+    if #lis==0 then print("The area is empty")
+    else for _,t in pairs(lis) do
+      print("There is a "..tangible.getclass(t).." here")
+      end end
+    end
+  _,pl,x,y,_,_=tangible.animstate(actor)
+  print("Your location is "..x.." "..y)
+end
+