diff --git a/src/languages/ruchy.js b/src/languages/ruchy.js
new file mode 100644
index 0000000000..c6c13e8066
--- /dev/null
+++ b/src/languages/ruchy.js
@@ -0,0 +1,201 @@
+/*
+Language: Ruchy
+Description: Ruchy is a systems programming language with built-in actor model support and functional programming features
+Author: Ruchy Language Team
+Website: https://ruchy-lang.org
+Category: system
+*/
+
+export default function(hljs) {
+  // Keywords organized by category for better maintainability
+  const KEYWORDS = {
+    keyword: [
+      // Control flow
+      'if', 'else', 'match', 'case', 'for', 'while', 'loop', 'break', 'continue', 'return',
+      // Declarations
+      'fn', 'let', 'mut', 'const', 'static', 'struct', 'enum', 'trait', 'impl', 'type', 'mod', 'use',
+      // Modifiers
+      'pub', 'async', 'await', 'unsafe', 'extern', 'move', 'ref', 'box',
+      // Actor keywords (Ruchy-specific)
+      'actor', 'spawn', 'send',
+      // Special identifiers
+      'self', 'Self', 'super', 'crate', 'as', 'in', 'where'
+    ].join(' '),
+    
+    type: [
+      // Primitive types
+      'bool', 'char', 'str',
+      // Integer types
+      'i8', 'i16', 'i32', 'i64', 'i128', 'isize',
+      'u8', 'u16', 'u32', 'u64', 'u128', 'usize',
+      // Float types
+      'f32', 'f64',
+      // Standard library types
+      'String', 'Vec', 'HashMap', 'HashSet', 'Result', 'Option',
+      'Box', 'Rc', 'Arc'
+    ].join(' '),
+    
+    literal: 'true false Some None Ok Err'
+  };
+
+  const OPERATORS = {
+    className: 'operator',
+    variants: [
+      // Pipeline operator (Ruchy-specific)
+      { begin: '>>' },
+      // Actor operators (Ruchy-specific)
+      { begin: '<-|<\\?' },
+      // Regular operators
+      { begin: '[=!<>+\\-*/%&|^~:?]+' },
+      { begin: '\\.\\.=?' },
+      { begin: '=>' },
+      { begin: '->' },
+      { begin: '::' }
+    ]
+  };
+
+  const LIFETIME = {
+    className: 'symbol',
+    begin: '\'[a-z_]\\w*'
+  };
+
+  const FUNCTION_DEFINITION = {
+    className: 'function',
+    beginKeywords: 'fn',
+    end: '\\(',
+    excludeEnd: true,
+    contains: [hljs.UNDERSCORE_TITLE_MODE]
+  };
+
+  const ACTOR_DEFINITION = {
+    className: 'class',
+    beginKeywords: 'actor',
+    end: '\\{',
+    excludeEnd: true,
+    contains: [hljs.UNDERSCORE_TITLE_MODE]
+  };
+
+  const TYPE_DEFINITION = {
+    className: 'class',
+    beginKeywords: 'struct enum trait type',
+    end: '[\\{\\(;]',
+    excludeEnd: true,
+    contains: [hljs.UNDERSCORE_TITLE_MODE]
+  };
+
+  const MACRO_INVOCATION = {
+    className: 'built_in',
+    begin: '\\w+!'
+  };
+
+  const ATTRIBUTE = {
+    className: 'meta',
+    begin: '#!?\\[[^\\]]*\\]'
+  };
+
+  const NUMBER = {
+    className: 'number',
+    variants: [
+      // Binary literals
+      { begin: '\\b0b[01_]+(?:[iu](?:8|16|32|64|128|size))?\\b' },
+      // Octal literals
+      { begin: '\\b0o[0-7_]+(?:[iu](?:8|16|32|64|128|size))?\\b' },
+      // Hexadecimal literals
+      { begin: '\\b0x[0-9a-fA-F_]+(?:[iu](?:8|16|32|64|128|size))?\\b' },
+      // Float literals
+      { begin: '\\b\\d[\\d_]*\\.\\d[\\d_]*(?:[eE][+-]?\\d[\\d_]+)?(?:f32|f64)?\\b' },
+      { begin: '\\b\\d[\\d_]*(?:[eE][+-]?\\d[\\d_]+)(?:f32|f64)?\\b' },
+      { begin: '\\b\\d[\\d_]*(?:f32|f64)\\b' },
+      // Integer literals with type suffixes
+      { begin: '\\b\\d[\\d_]*(?:[iu](?:8|16|32|64|128|size))?\\b' }
+    ]
+  };
+
+  const RAW_STRING = {
+    className: 'string',
+    begin: 'r#*"',
+    end: '"#*',
+    contains: []
+  };
+
+  const STRING = {
+    className: 'string',
+    begin: '"',
+    end: '"',
+    contains: [
+      hljs.BACKSLASH_ESCAPE,
+      {
+        className: 'subst',
+        begin: '\\$\\{',
+        end: '\\}',
+        contains: []
+      }
+    ]
+  };
+
+  const CHAR = {
+    className: 'string',
+    begin: '\'[^\']*\''
+  };
+
+  const COMMENT_DOC = {
+    className: 'comment',
+    variants: [
+      { begin: '///', end: '$' },
+      { begin: '/\\*\\*', end: '\\*/' }
+    ],
+    contains: [
+      {
+        className: 'doctag',
+        begin: '@\\w+'
+      }
+    ]
+  };
+
+  const COMMENT = {
+    className: 'comment',
+    variants: [
+      { begin: '//', end: '$' },
+      { begin: '/\\*', end: '\\*/' }
+    ],
+    contains: [
+      {
+        className: 'keyword',
+        begin: '\\b(?:TODO|FIXME|NOTE|HACK|XXX|BUG|DEBT|WORKAROUND)\\b'
+      }
+    ]
+  };
+
+  // Set up recursive references for string interpolation
+  STRING.contains[1].contains = [
+    hljs.UNDERSCORE_IDENT_MODE,
+    NUMBER,
+    OPERATORS
+  ];
+
+  return {
+    name: 'Ruchy',
+    aliases: ['rhy'],
+    keywords: KEYWORDS,
+    illegal: '</',
+    contains: [
+      COMMENT_DOC,
+      COMMENT,
+      LIFETIME,
+      FUNCTION_DEFINITION,
+      ACTOR_DEFINITION,
+      TYPE_DEFINITION,
+      MACRO_INVOCATION,
+      ATTRIBUTE,
+      RAW_STRING,
+      STRING,
+      CHAR,
+      NUMBER,
+      OPERATORS,
+      {
+        className: 'punctuation',
+        begin: '[{}\\[\\];():]'
+      }
+    ]
+  };
+}
\ No newline at end of file
diff --git a/test/detect/ruchy/default.txt b/test/detect/ruchy/default.txt
new file mode 100644
index 0000000000..b50d08d08e
--- /dev/null
+++ b/test/detect/ruchy/default.txt
@@ -0,0 +1,92 @@
+// Ruchy language demonstration for highlight.js testing
+
+/// Documentation comment for the MessageProcessor actor
+/// This actor handles message processing with state management
+actor MessageProcessor {
+    state: Vec<String>,
+    counter: i32,
+
+    fn new() -> Self {
+        Self { 
+            state: Vec::new(),
+            counter: 0 
+        }
+    }
+
+    fn handle(&mut self, message: String) -> String {
+        self.counter += 1;
+        self.state.push(message.clone());
+        
+        // Pipeline operator demonstration
+        let result = message 
+            >> |s| s.to_uppercase()
+            >> |s| format!("Processed #{}: {}", self.counter, s)
+            >> |s| s.trim().to_string();
+            
+        result
+    }
+}
+
+struct Config {
+    name: String,
+    timeout: f64,
+    enabled: bool,
+}
+
+enum MessageType {
+    Text(String),
+    Binary(Vec<u8>),
+    Empty,
+}
+
+trait Processor {
+    fn process(&mut self, data: &str) -> Result<String, String>;
+}
+
+impl Processor for MessageProcessor {
+    fn process(&mut self, data: &str) -> Result<String, String> {
+        match data {
+            "" => Err("Empty input".to_string()),
+            s if s.len() > 1000 => Err("Input too large".to_string()),
+            _ => Ok(self.handle(data.to_string())),
+        }
+    }
+}
+
+#[async]
+fn main() {
+    // Create and spawn an actor
+    let processor = spawn(MessageProcessor::new());
+    
+    // Send messages using actor operators
+    processor <- "Hello".to_string();
+    processor <- "World".to_string();
+    
+    // Ask for response
+    let response = processor <? "Status".to_string();
+    println!("Response: {}", response);
+    
+    // Numeric literals demonstration
+    let binary = 0b1010_1010u8;
+    let hex = 0xFF_FF_FFu32;
+    let float = 3.14159f64;
+    
+    // String interpolation
+    let message = "Result: ${response}, Binary: ${binary}";
+    
+    // Pattern matching
+    let result = match MessageType::Text("hello".to_string()) {
+        MessageType::Text(s) => s.to_uppercase(),
+        MessageType::Binary(_) => "Binary data".to_string(),
+        MessageType::Empty => "No data".to_string(),
+    };
+    
+    println!("{}", result);
+}
+
+// FIXME: This is a technical debt comment
+// TODO: Implement error handling
+/* 
+   Multi-line comment with HACK keyword
+   DEBT: Refactor this code
+*/
\ No newline at end of file
diff --git a/test/markup/ruchy/default.txt b/test/markup/ruchy/default.txt
new file mode 100644
index 0000000000..758e9e6e32
--- /dev/null
+++ b/test/markup/ruchy/default.txt
@@ -0,0 +1,27 @@
+// Actor model example
+actor Counter {
+    let mut count: i32 = 0;
+    
+    receive Increment(n) -> {
+        count += n;
+        println!("Count is now: {}", count);
+    }
+    
+    receive GetCount -> count
+}
+
+fn main() {
+    let counter = spawn!(Counter);
+    
+    counter <- Increment(5);
+    counter <- Increment(10);
+    
+    let result = counter <? GetCount;
+    
+    // Pipeline operator
+    data 
+        >> validate
+        >> transform 
+        >> persist
+        >> log_result;
+}
\ No newline at end of file