diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index 7f0c156..2aa3282 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -51,7 +51,12 @@
       "Bash(git config:*)",
       "mcp__plugin_serena_serena__check_onboarding_performed",
       "Bash(powershell:*)",
-      "mcp__plugin_serena_serena__execute_shell_command"
+      "mcp__plugin_serena_serena__execute_shell_command",
+      "mcp__plugin_serena_serena__list_memories",
+      "mcp__plugin_serena_serena__onboarding",
+      "mcp__plugin_serena_serena__write_memory",
+      "mcp__plugin_serena_serena__think_about_whether_you_are_done",
+      "Bash(.gradlew.bat assembleDebug)"
     ]
   }
 }
diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
index 3cc0cd3..72917e2 100644
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@@ -4,10 +4,10 @@
     <selectionStates>
       <SelectionState runConfigName="Unnamed">
         <option name="selectionMode" value="DROPDOWN" />
-        <DropdownSelection timestamp="2026-01-16T22:28:09.607776900Z">
+        <DropdownSelection timestamp="2026-01-17T14:48:23.759734500Z">
           <Target type="DEFAULT_BOOT">
             <handle>
-              <DeviceId pluginId="PhysicalDevice" identifier="serial=3B15B701VS600000" />
+              <DeviceId pluginId="LocalEmulator" identifier="path=C:\Users\polar\.android\avd\Pixel_3a_API_34_extension_level_7_x86_64.avd" />
             </handle>
           </Target>
         </DropdownSelection>
diff --git a/CLAUDE.md b/CLAUDE.md
index 37d7caf..3a77310 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -50,13 +50,14 @@ Boidelo is an Android drinking game app built with Java and Gradle. The architec
 - `com.example.boidelov3.games.boideloclassic` - Original Boidelo game
 - `com.example.boidelov3.games.game89` - 89++ card game
 - `com.example.boidelov3.games.papelito` - Undercover party game
+- `com.example.boidelov3.rules` - Rules viewer for popular party games
 - `com.example.boidelov3.data` - Data models and repositories
 - `com.example.boidelov3.game` - GameEngine (pure Java game logic)
 - `com.example.boidelov3.utils` - Utilities (sound, error handling, security)
 
 ### Entry Points
-- **GameSelectionActivity** (`hub/GameSelectionActivity.java`) - Main hub, displays available games via RecyclerView
-- **MainActivity** (`MainActivity.java`) - Legacy entry for Boidelo Classic, being phased out
+- **GameSelectionActivity** (`hub/GameSelectionActivity.java`) - Main hub, displays available games via RecyclerView. This is the LAUNCHER activity in AndroidManifest.xml.
+- **Legacy Activities** (`Jeux.java`, `JeuxParametres.java`, `EndGameActivity.java`) - Being phased out, do not use for new development
 
 ### Game Flow Pattern
 Each game follows this flow:
@@ -113,12 +114,15 @@ Questions go through several transformations before display:
 - Game-specific tests in subpackages (e.g., `games/papelito/`, `games/game89/`)
 - JUnit 4 framework
 - Mockito 5.7.0 for mocking
+- Robolectric 4.11.1 for Android framework testing
 
 **Test Patterns:**
 - Each game has comprehensive test coverage (15+ tests per game)
 - Tests cover: setup/teardown, edge cases, state transitions, player management, win conditions
 - Defensive copy testing for collections
 
+**Known Issue:** Gradle 8.13 has a bug with unit tests from command line. If tests fail, run from Android Studio or use JDK 17-21.
+
 ### Important Files
 - `app/build.gradle` - Dependencies, build config, BuildConfig fields
 - `local.properties` - Local SDK path and API keys (not in git)
@@ -137,20 +141,22 @@ Questions go through several transformations before display:
 
 ### Game Registration (GameInfo System)
 Games are registered in `GameSelectionActivity.setupGamesList()` via the `GameInfo` class. Each entry includes:
-- Game name (enum value)
-- Display name (string resource)
-- Description (string resource)
-- Icon resource
-- Availability flag
+- Game name (hardcoded string)
+- Description (hardcoded string)
+- Icon resource (drawable resource ID)
+- GameType enum value (BOIDELO_CLASSIC, GAME_89, UNDERCOVER, RULES)
+- Availability flag (boolean)
 
-Games are launched via Intent using `GameType` enum values.
+Games are launched via Intent in `GameSelectionActivity.onItemClick()` using switch statement on `GameType` enum values.
 
 ### Adding a New Game
 1. Create package under `com.example.boidelov3.games.<gamename>`
-2. Implement setup, parameters, and game activities
-3. Create `GameInfo` entry in `GameSelectionActivity.setupGamesList()`
-4. Add game icon/drawable resources
-5. Follow existing patterns for player management and game flow
+2. Implement setup, parameters, and game activities (follow Game Flow Pattern)
+3. Add GameType enum value to `GameInfo.GameType`
+4. Create `GameInfo` entry in `GameSelectionActivity.setupGamesList()`
+5. Add case in `GameSelectionActivity.onItemClick()` switch statement
+6. Add activities to AndroidManifest.xml with `android:screenOrientation="portrait"`
+7. Add game icon/drawable resource following `ic_<gamename>.xml` pattern
 
 ### Dependencies
 - AndroidX AppCompat 1.7.0
@@ -158,9 +164,10 @@ Games are launched via Intent using `GameType` enum values.
 - ConstraintLayout 2.2.0
 - OkHttp 4.12.0
 - Gson 2.11.0
-- pgjdbc-ng 0.8.3 (PostgreSQL - currently unused)
+- pgjdbc-ng 0.8.3 (PostgreSQL - currently unused, backend recommended)
 - JUnit 4.13.2
 - Mockito 5.7.0
+- Robolectric 4.11.1
 - AndroidX Test JUnit 1.2.1
 - Espresso 3.6.1
 
@@ -170,3 +177,54 @@ Games are launched via Intent using `GameType` enum values.
 - `compileSdk`: 35
 - Java 8 compatibility
 - Namespace: `com.example.boidelov3`
+- All game activities use `android:screenOrientation="portrait"` in AndroidManifest.xml
+- Game activities handle config changes with `android:configChanges="orientation|screenSize"`
+
+---
+
+## Code Style and Conventions
+
+### Language Usage
+- **Business logic terms in French:** `gorgees`, `manches`, `caliente` (domain-specific)
+- **Technical terms in English:** `allPlayers`, `questionsWithManches`
+- **UI text in French** (user-facing)
+
+### Constants Management
+All SharedPreferences keys are centralized in `PreferencesKeys.java`:
+```java
+// File names: PREFS_NAME_*
+// Keys: KEY_*
+// Dynamic keys: use getPlayerKey(int playerNumber)
+```
+
+Replace hardcoded strings throughout the codebase with these constants.
+
+### Result<T, E> Pattern
+Type-safe error handling wrapper used throughout:
+```java
+Result<String, Exception> result = repository.loadQuestions();
+if (result.isSuccess()) {
+    String data = result.getData();
+} else {
+    Exception error = result.getError();
+}
+```
+
+### Resource Naming
+- **Layouts:** `activity_<game>_<screen>.xml`, `dialog_<game>_<purpose>.xml`
+- **Drawables:** `ic_<gamename>.xml` pattern
+- **Strings:** Prefix by game (e.g., `papelito_`, `boidelo_`, `game89_`)
+
+### Material Design
+- Use `@color/primary` (#9395D3), `@color/accent` (#B3B7EE)
+- Custom styles: `BoideloButton`, `BoideloTitle`, `BoideloCard`
+- MaterialCardView with rounded corners (16-24dp) and elevation (4-8dp)
+
+---
+
+## Additional Documentation
+
+- `README_ARCHITECTURE.md` - Detailed architecture documentation (French)
+- `STANDARDISATION_ET_TESTS.md` - Standardization work and test coverage (French)
+- `SECURITY_RECOMMENDATIONS.md` - Security guidelines and best practices
+- `PAPELITO_LAYOUTS.md` - Papelito game layout documentation
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4c817d4..7db48ea 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -71,6 +71,17 @@
             android:exported="false"
             android:screenOrientation="portrait" />
 
+        <!-- Rules Activities -->
+        <activity
+            android:name=".rules.RulesListActivity"
+            android:exported="false"
+            android:screenOrientation="portrait" />
+
+        <activity
+            android:name=".rules.RuleDetailActivity"
+            android:exported="false"
+            android:screenOrientation="portrait" />
+
         <!-- Legacy Activities (to be removed) -->
                 <!-- Legacy activities placeholder -->
 
diff --git a/app/src/main/java/com/example/boidelov3/hub/GameSelectionActivity.java b/app/src/main/java/com/example/boidelov3/hub/GameSelectionActivity.java
index 623b17a..fa2e1b9 100644
--- a/app/src/main/java/com/example/boidelov3/hub/GameSelectionActivity.java
+++ b/app/src/main/java/com/example/boidelov3/hub/GameSelectionActivity.java
@@ -81,7 +81,7 @@ public class GameSelectionActivity extends AppCompatActivity implements GameAdap
                 "Découvrez les règles des jeux d'ambiance populaires",
                 R.drawable.ic_rules,
                 GameInfo.GameType.RULES,
-                false  // Coming soon
+                true  // Available now!
         ));
     }
 
@@ -117,9 +117,7 @@ public class GameSelectionActivity extends AppCompatActivity implements GameAdap
                 startActivity(new Intent(this, com.example.boidelov3.games.papelito.PapelitoSetupActivity.class));
                 break;
             case RULES:
-                // À implémenter: RulesListActivity
-                android.widget.Toast.makeText(this, "Règles de jeux - Bientôt disponible!", 
-                    android.widget.Toast.LENGTH_SHORT).show();
+                startActivity(new Intent(this, com.example.boidelov3.rules.RulesListActivity.class));
                 break;
         }
     }
diff --git a/app/src/main/res/drawable/ic_rules.xml b/app/src/main/res/drawable/ic_rules.xml
index a1b9a0f..5c3af1e 100644
--- a/app/src/main/res/drawable/ic_rules.xml
+++ b/app/src/main/res/drawable/ic_rules.xml
@@ -5,6 +5,9 @@
     android:viewportWidth="24"
     android:viewportHeight="24">
     <path
-        android:fillColor="@color/accent"
-        android:pathData="M18,2H6C4.9,2 4,2.9 4,4v16c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2V4c0,-1.1 -0.9,-2 -2,-2zM6,4h5v8l-2.5,-1.5L6,12V4z" />
+        android:fillColor="@color/text_on_primary"
+        android:pathData="M14,2H6C4.9,2 4,2.9 4,4v16c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2V8L14,2zM6,20V4h7v5h5v11H6z"/>
+    <path
+        android:fillColor="@color/text_on_primary"
+        android:pathData="M8,12h8v2H8zM8,16h8v2H8zM8,8h5v2H8z"/>
 </vector>