diff --git a/sim/requirements.txt b/sim/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..42e7cd3c2d45a0c1bec60289f1cefa8ac9269dbd
--- /dev/null
+++ b/sim/requirements.txt
@@ -0,0 +1,4 @@
+pygame
+requests
+wasmer
+wasmer-compiler-cranelift
diff --git a/sim/run.py b/sim/run.py
old mode 100644
new mode 100755
index 2212db87c32a21cf1ab683b6e68df7678a36e555..c84d63afa25676b6e8d28135e6a95665e6d2c7cd
--- a/sim/run.py
+++ b/sim/run.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import importlib
 import importlib.abc
 import importlib.machinery