diff --git a/justfile b/justfile
new file mode 100644
index 0000000..2e3ffeb
--- /dev/null
+++ b/justfile
@@ -0,0 +1,2 @@
+picotron:
+    picotron&
diff --git a/picotron/wolfenstein.p64 b/picotron/wolfenstein.p64
new file mode 100644
index 0000000..3d9a4db
--- /dev/null
+++ b/picotron/wolfenstein.p64
@@ -0,0 +1,47 @@
+picotron cartridge // www.picotron.net
+version 2
+
+:: gfx/
+:: gfx/0.gfx
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQyIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIscmV2aXNpb249NjJdXWx6NACnAAAALDEAAPMUe1swXT17Ym1wPXB4dQBD
+IBAQBPDwLGZsYWdzPTAscGFuX3gIAMp5PTAsem9vbT04fSwxAB-2MQAdH-cxAB0v-xkyAB4fEDIA
+HdbwFGiAeHAYMChgGEAYBACRMBhwaIBYkBjQAgAv8ApWAB0f8DEA------------------------
+---------------------------------------hUG09OH19
+:: gfx/.info.pod
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIsc3RvcmVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIl1d
+:: map/
+:: map/0.map
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQyIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIscmV2aXNpb249NjddXWx6NAC2AAAAXBAAAPAIe3tibXA9dXNlcmRhdGEo
+ImkxNiIsMzIDAJ8iMDAwMTAwMDIIAA4PAQBHD1wAES8xMAEARw9cAA4PAAFULzMwAAF3EzQEAA8A
+AVkOgAAPAAFnDAEADwABXQwBAA8AAVEvNTAAAecfMggADg8BAP-------------O8QkiKSxoaWRk
+ZW49ZmFsc2UscGFuX3g9MjAJAOJ5PS04LHRpbGVfaD0xNgoAEHcKAKB6b29tPTAuNX19
+:: map/.info.pod
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIsc3RvcmVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIl1d
+:: sfx/
+:: sfx/0.sfx
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQyIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIscmV2aXNpb249NTBdXWx6NAARAQAAUggAAPAncHh1AAMoAAAEAAQPQBAC
+DgABoAEgAqAOAA8QAA3wygECAwQFBgcAD-_QCAkKCw8MDw0PDg8PEADwAA0PEQ8SDxMPFA8VDxYP
+FxMA8QEPGA8ZDxoPGw8cDx0PHg8fFADxACAPIQ8iDyMPJA8lDyYPJxQA8QAoDykPKg8rDywPLQ8u
+Dy8UAPEAMA8xDzIPMw80DzUPNg83FAD-BTgPOQ86DzsPPA89Dz4PPwAP--D-AQDr-ydaARAGDyAQ
+ASABIAHwAAIQAgwQASAPISABMA9A8MMPKA--8MYP_AoP-w_AD-cPDQHwCQEQBgwwAP85H-8BANy-
+_A9AAA1A--_w8HAKAP--ZB--AQD-mVD-----IA==
+:: sfx/.info.pod
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIsc3RvcmVkPSIyMDI0LTAzLTIwIDExOjU3OjQxIl1d
+:: main.lua
+--[[pod_format="raw",created="2024-03-20 11:57:42",modified="2024-09-23 11:33:27",revision=74]]
+include("/cartridges/wolfenstein_src/main.lua")
+
+:: .info.pod
+b64$LS1bW3BvZCxjcmVhdGVkPSIyMDI0LTA4LTEyIDExOjQ2OjM4Iixtb2RpZmllZD0iMjAyNC0w
+OS0yMyAxMTozMzoyNyIscnVudGltZT0xMSxzdG9yZWQ9IjIwMjQtMDMtMjUgMTI6NTc6NDAiLHdv
+cmtzcGFjZXM9e3tsb2NhdGlvbj0ibWFpbi5sdWEjMiIsd29ya3NwYWNlX2luZGV4PTF9LHtsb2Nh
+dGlvbj0iZ2Z4LzAuZ2Z4Iix3b3Jrc3BhY2VfaW5kZXg9Mn0se2xvY2F0aW9uPSJtYXAvMC5tYXAi
+LHdvcmtzcGFjZV9pbmRleD0zfSx7bG9jYXRpb249InNmeC8wLnNmeCIsd29ya3NwYWNlX2luZGV4
+PTR9fV1d
+:: [eoc]
diff --git a/picotron/wolfenstein_src/main.lua b/picotron/wolfenstein_src/main.lua
new file mode 100644
index 0000000..31a8f05
--- /dev/null
+++ b/picotron/wolfenstein_src/main.lua
@@ -0,0 +1,27 @@
+player = {
+	x = nil,
+	y = nil
+}
+
+col_bg = 1
+col_ground = 6
+
+function _init()
+	for i=0,31 do
+		for j=0,31 do
+			if mget(i,j) == 5 then -- player id
+				player.x = i
+				player.y = j
+				break
+			end
+		end
+		if (player.x) break
+	end
+	print("player: ("..player.x..", "..player.y..")")
+end
+
+function _draw()
+	cls(col_bg)
+	rectfill(0, 135, 480, 270, col_ground)
+	-- map()
+end