diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Aqua Server
-An multipurpose game server power by Spring Boot.
+Multipurpose game server powered by Spring Boot.
 
 ### Supported Game:
 * CHUNITHM Paradise Lost (and below)
@@ -7,9 +7,11 @@ An multipurpose game server power by Spring Boot.
 * Project DIVA Arcade Future Tone
 * O.N.G.E.K.I. bright (and below)
 
+For more information, please see [game specific notes](docs/game_specific_notes.md).
+
 ### Notes:
 * Some game may require additional patches and these will not provided in this project and repository. You already found this, so you know where to find related resources too.
-* This repository may contain untested, experimental support for few game which I can't test properly. If you couldn't find your wanted game in the above list, do not expect worthwhile support.
+* This repository may contain untested, experimental implementation for few games which I can't test properly. If you couldn't find your wanted game in the above list, do not expect support.
 
 ### Usage:
 Requirements:
@@ -18,7 +20,7 @@ Requirements:
 
 Run `java -jar aqua.jar` or use the `start.bat` if you are using windows.
 
-By default, aqua will use sqlite and save user data in data/db.sqlite.
+By default, Aqua will use sqlite and save user data in data/db.sqlite.
 
 If you want to MySQL (or MariaDB), edit configuration then it will auto create the table and import some initial data.
 
diff --git a/docs/game_specific_notes.md b/docs/game_specific_notes.md
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@@ -0,0 +1,60 @@
+# Game specific notes
+For best viewing experience, please use a markdown viewer that supports Github or Gitlab Flavored Markdown syntax.
+
+This document is for detailed game specific notes, if any.
+
+## Overview
+
+|       Name      | Game ID | Latest supported version | Latest supported option | Actively supported | Requires patch |
+| ---             | ---     | ---                      | ---                     | ---                | ---            |
+|Chunithm         |SDBT     |Paradise Lost             |A032                     |Yes                 |Yes (Paradise)  |
+|Maimai DX        |SDEZ     |Universe                  |D051                     |Yes                 |Yes             |
+|O.N.G.E.K.I      |SDDT     |Bright                    |A016                     |Yes                 |Yes             |
+|Maimai           |SDEY     |Finale                    |?                        |No                  |?               |
+|Project DIVA AFT |SBZV     |?                         |?                        |No                  |?               |
+|Initial D Zero   |SDDF     |?                         |?                        |No                  |?               |
+
+* Actively supported: if yes, it will likely receive future bug fixes and new version support.
+* Requires patch: if yes, game needs to be patched in order to work with Aqua server.
+* Latest supported option: this may or may not include all options up to latest.
+
+## Chunithm
+Only JP variant is supported.
+
+### Required patches
+This section only applies to Paradise and up.
+* No TLS
+* No encryption
+
+### Additional notes
+* Workaround for profile version mismatch is implemented, but not recommended.
+
+## Maimai DX
+Only JP variant is supported.
+
+### Required patches
+* No TLS
+* No certificate pinning
+* No URI obfuscation
+* No encryption
+
+### Non-working features
+* KOP related
+* User portrait
+* DX Pass
+* Tournament mode
+
+### Additional notes
+* From version 0.0.25, Aqua reports endpoint as `http://ALLNET_HOST/`. The final endpoint that game connects must be `http://ALLNET_HOST/Maimai2Servlet/`.
+
+## O.N.G.E.K.I
+
+### Required patches
+* No TLS
+* No certificate pinning
+* No URI obfuscation
+* No encryption
+
+### Non-working features
+* KOP related
+* Physical cards
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