diff --git a/compatibilitytool/compatibilitytool.vdf b/compatibilitytool/compatibilitytool.vdf
new file mode 100644
index 0000000..f19cb63
--- /dev/null
+++ b/compatibilitytool/compatibilitytool.vdf
@@ -0,0 +1,14 @@
+"compatibilitytools"
+{
+  "compat_tools"
+  {
+	"Proton-Astra" // Internal name of this tool
+	{
+	  "install_path" "."
+	  "display_name" "Astra"
+
+	  "from_oslist"  "windows"
+	  "to_oslist"    "linux"
+	}
+  }
+}
diff --git a/compatibilitytool/toolmanifest.vdf b/compatibilitytool/toolmanifest.vdf
new file mode 100644
index 0000000..26f7fd5
--- /dev/null
+++ b/compatibilitytool/toolmanifest.vdf
@@ -0,0 +1,5 @@
+"manifest"
+{
+  "commandline" "/astra run"
+  "commandline_waitforexitandrun" "/astra waitforexitandrun"
+}