diff --git a/Seeing-why-the-game-is-frozen-(Windows).md b/Seeing-why-the-game-is-frozen.md
similarity index 65%
rename from Seeing-why-the-game-is-frozen-(Windows).md
rename to Seeing-why-the-game-is-frozen.md
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--- a/Seeing-why-the-game-is-frozen-(Windows).md
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@@ -1,3 +1,11 @@
+# Linux
+
+In Terminal:
+1. `ps -ef | grep ClassiCube` - to find PID / process ID of ClassiCube (first number in an output line)
+2. `sudo eu-stack -id -p [PID]` - to print stacktrace for that process
+
+# Windows
+
 1. Get process hacker https://processhacker.sourceforge.io/ 
 2. Double click the **second / child** ClassiCube.exe in processes list 
 3. Go to Threads tab