diff --git a/Installing.md b/Installing.md
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@@ -1,3 +1,12 @@
 ## [![](https://i.imgur.com/ou0wy1S.png)](https://github.com/theAsmodai/metamod-r/wiki/English-version) Back
 Check out [list of supported games](https://github.com/theAsmodai/metamod-r/wiki/Supported-games) and make sure that there is your game in the list. _Don't be upset if it's not. After installation you can check the performance of **Metamod-r** with your `unsupported` mod after fine tuning by this [article](https://github.com/theAsmodai/metamod-r/wiki/Settings). There is a possibility that the game will start._
+
+# Compatibility
+
+Do not forget that **Metamod-r** is compatible only with the following server versions and operating systems.
+
+| Original | ReHLDS | OS
+|---------| -------|  -------|  
+| `6xxx`, `7xxx` | `API 3.1+` | ![](https://i.imgur.com/AzhAYR4.png) ![](https://i.imgur.com/t23p9tU.png) |
+
 ![](https://i.imgur.com/ptx3MZx.png)
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