diff --git a/README.md b/README.md
index 07e76e7..4accd2b 100644
--- a/README.md
+++ b/README.md
@@ -2,16 +2,11 @@
 
 ## Concept
 
-The "water meter" is always visible, and ticks down each time you take an action. When it hits zero, you die.
+"Fun value", inspired by Undertale, activates different secrets at different times.
 
-This will probably see some iteration.
-
-## Link
+## Links
 
 https://python-tcod.readthedocs.io/en/latest/
 
-I'm working from this:
+https://rogueliketutorials.com/
 
-https://rogueliketutorials.com/tutorials/tcod/v2/part-4/
-
-FUN value, 0-255?
\ No newline at end of file
diff --git a/source/engine.py b/source/engine.py
index fcdfe78..6b20dcc 100644
--- a/source/engine.py
+++ b/source/engine.py
@@ -4,13 +4,15 @@ from tcod.context import Context
 from tcod.console import Console
 
 from entity import Entity
+from floor_map import FloorMap #TODO: replace with "DungeonMap"
 
 class Engine:
-	def __init__(self):
+	def __init__(self, floor_map: FloorMap):
 		from event_handler import EventHandler
 		self.event_handler = EventHandler(self)
 
 		self.player = Entity(0, 0, "@", (255, 255, 255))
+		self.floor_map = floor_map
 
 	def handle_events(self, events: Iterable[Any]) -> None:
 		for event in events:
@@ -22,11 +24,7 @@ class Engine:
 			action.apply(Engine)
 	
 	def render(self, context: Context, console: Console) -> None:
-		#TODO: render map
-
-		#TODO: render entities
-		# for entity in self.entities:
-		# 	console.print(entity.x, entity.y, entity.char, fg=entity.color)
+		self.floor_map.render(console)
 
 		console.print(self.player.x, self.player.y, self.player.char, fg=self.player.color)
 
diff --git a/source/floor_map.py b/source/floor_map.py
new file mode 100644
index 0000000..fcf0143
--- /dev/null
+++ b/source/floor_map.py
@@ -0,0 +1,17 @@
+import numpy as np
+
+from tcod.console import Console
+
+import tile_types
+
+class FloorMap:
+	def __init__(self, width: int, height: int):
+		self.width = width
+		self.height = height
+		self.tiles = np.full((width, height), fill_value=tile_types.wall, order="F")
+	
+	def in_bounds(self, x: int, y: int) -> bool:
+		return 0 <= x < self.width and 0 <= y < self.height
+	
+	def render(self, console: Console) -> None:
+		console.rgb[0:self.width, 0:self.height] = self.tiles["dark"]
\ No newline at end of file
diff --git a/source/main.py b/source/main.py
index 4b9773e..4b2e9be 100755
--- a/source/main.py
+++ b/source/main.py
@@ -1,6 +1,8 @@
 #!./bin/python
 import tcod
 
+from floor_map import FloorMap #TODO: replace with "DungeonMap"
+
 from engine import Engine
 
 def main() -> None:
@@ -8,8 +10,8 @@ def main() -> None:
 	tileset = tcod.tileset.load_tilesheet("assets/dejavu10x10_gs_tc.png", 32, 8, tcod.tileset.CHARMAP_TCOD)
 
 	context = tcod.context.new(
-		columns = 40,
-		rows = 20,
+		columns = 80,
+		rows = 45,
 		tileset = tileset,
 		title = "Stepwise Roguelike",
 		vsync = True
@@ -17,15 +19,15 @@ def main() -> None:
 
 	w, h = context.recommended_console_size(min_columns=10, min_rows=10)
 
-	print(w, h)
-
 	console = tcod.console.Console(
 		width = w,
 		height = h,
 		order = "F"
 	)
 
-	engine = Engine()
+	floor_map = FloorMap(80, 45) # same as context settings
+
+	engine = Engine(floor_map)
 
 	# game loop
 	while True:
diff --git a/source/tile_types.py b/source/tile_types.py
new file mode 100644
index 0000000..9b310b5
--- /dev/null
+++ b/source/tile_types.py
@@ -0,0 +1,39 @@
+from typing import Tuple
+
+import numpy as np
+
+#datatypes
+graphics_dt = np.dtype(
+	[
+		("ch", np.int32),
+		("fg", "3B"),
+		("bg", "3B"),
+	]
+)
+
+tile_dt = np.dtype(
+	[
+		("walkable", np.bool),
+		("transparent", np.bool),
+		("light", graphics_dt), #when this tile is in FOV
+		("dark", graphics_dt), #when this tile is *not* in FOV
+	]
+)
+
+def new_tile(*, walkable: np.bool, transparent: np.bool, light: graphics_dt, dark: graphics_dt):
+	return np.array((walkable, transparent, light, dark), dtype = tile_dt)
+
+#list of tile types
+wall = new_tile(
+	walkable=False,
+	transparent=False,
+	light=(ord('#'), (200, 200, 200), (0, 0, 0)),
+	dark =(ord('#'), (100, 100, 100), (0, 0, 0)),
+)
+
+floor = new_tile(
+	walkable=True,
+	transparent=True,
+	light=(ord('.'), (200, 200, 200), (0, 0, 0)),
+	dark =(ord('.'), (100, 100, 100), (0, 0, 0)),
+)