diff --git a/src/consts/game_mode.rs b/src/consts/game_mode.rs
new file mode 100644
index 0000000..19d061f
--- /dev/null
+++ b/src/consts/game_mode.rs
@@ -0,0 +1,67 @@
+// This file is automatically generated.
+// Do not directly edit.
+
+use strum_macros::{ EnumString, Display, AsRefStr };
+
+/// League of Legends game mode, such as Classic,
+/// ARAM, URF, One For All, Ascension, etc.
+#[derive(Debug, Copy, Clone)]
+#[derive(Eq, PartialEq, Hash)]
+#[derive(EnumString, Display, AsRefStr)]
+#[repr(u8)]
+pub enum GameMode {
+    /// Classic Summoner's Rift and Twisted Treeline games
+    #[strum(to_string="CLASSIC")]
+    Classic,
+    /// Dominion/Crystal Scar games
+    #[strum(to_string="ODIN")]
+    Odin,
+    /// ARAM games
+    #[strum(to_string="ARAM")]
+    Aram,
+    /// Tutorial games
+    #[strum(to_string="TUTORIAL")]
+    Tutorial,
+    /// URF games
+    #[strum(to_string="URF")]
+    Urf,
+    /// Doom Bot games
+    #[strum(to_string="DOOMBOTSTEEMO")]
+    Doombotsteemo,
+    /// One for All games
+    #[strum(to_string="ONEFORALL")]
+    Oneforall,
+    /// Ascension games
+    #[strum(to_string="ASCENSION")]
+    Ascension,
+    /// Snowdown Showdown games
+    #[strum(to_string="FIRSTBLOOD")]
+    Firstblood,
+    /// Legend of the Poro King games
+    #[strum(to_string="KINGPORO")]
+    Kingporo,
+    /// Nexus Siege games
+    #[strum(to_string="SIEGE")]
+    Siege,
+    /// Blood Hunt Assassin games
+    #[strum(to_string="ASSASSINATE")]
+    Assassinate,
+    /// All Random Summoner's Rift games
+    #[strum(to_string="ARSR")]
+    Arsr,
+    /// Dark Star: Singularity games
+    #[strum(to_string="DARKSTAR")]
+    Darkstar,
+    /// Star Guardian Invasion games
+    #[strum(to_string="STARGUARDIAN")]
+    Starguardian,
+    /// PROJECT: Hunters games
+    #[strum(to_string="PROJECT")]
+    Project,
+    /// Nexus Blitz games
+    #[strum(to_string="GAMEMODEX")]
+    Gamemodex,
+    /// Odyssey: Extraction games
+    #[strum(to_string="ODYSSEY")]
+    Odyssey,
+}
diff --git a/src/consts/mod.rs b/src/consts/mod.rs
index ad95fab..1f5de0d 100644
--- a/src/consts/mod.rs
+++ b/src/consts/mod.rs
@@ -6,6 +6,9 @@ pub use champion::*;
 mod division;
 pub use division::*;
 
+mod game_mode;
+pub use game_mode::*;
+
 mod game_type;
 pub use game_type::*;
 
diff --git a/srcgen/consts/game_mode.rs.dt b/srcgen/consts/game_mode.rs.dt
new file mode 100644
index 0000000..f809515
--- /dev/null
+++ b/srcgen/consts/game_mode.rs.dt
@@ -0,0 +1,24 @@
+{{
+    const dotUtils = require('./dotUtils.js');
+    const gameModes = require('./.gameModes.json');
+}}{{= dotUtils.preamble() }}
+
+use strum_macros::{ EnumString, Display, AsRefStr };
+
+/// League of Legends game mode, such as Classic,
+/// ARAM, URF, One For All, Ascension, etc.
+#[derive(Debug, Copy, Clone)]
+#[derive(Eq, PartialEq, Hash)]
+#[derive(EnumString, Display, AsRefStr)]
+#[repr(u8)]
+pub enum GameMode {
+{{
+    for (const { gameMode, description } of gameModes) {
+}}
+    /// {{= description }}
+    #[strum(to_string="{{= gameMode }}")]
+    {{= dotUtils.changeCase.pascalCase(gameMode) }},
+{{
+    }
+}}
+}
diff --git a/srcgen/index.js b/srcgen/index.js
index faf2651..e354ed6 100644
--- a/srcgen/index.js
+++ b/srcgen/index.js
@@ -26,6 +26,10 @@ const files = [
   [
     'http://static.developer.riotgames.com/docs/lol/gameTypes.json',
     '.gameTypes.json'
+  ],
+  [
+    'http://static.developer.riotgames.com/docs/lol/gameModes.json',
+    '.gameModes.json'
   ]
 ]