diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01d0e70..9a1a397 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ Games:
 - Made all of Just Cause 2: Multiplayer Response and Player fields public.
 - [Mindustry](https://mindustrygame.github.io/) support.
 - Eco support (by @CosminPerRam).
+- [Call Of Duty: Black Ops 3](https://store.steampowered.com/agecheck/app/311210/) support.
 
 Crate:
 - Changed the serde feature to only enable serde derive for some types: serde and serde_json is now a dependecy by default.
diff --git a/GAMES.md b/GAMES.md
index a2ab39a..2f74691 100644
--- a/GAMES.md
+++ b/GAMES.md
@@ -79,6 +79,7 @@ Beware of the `Notes` column, as it contains information about query port offset
 | America's Army: Proving Grounds    | AAPG                | Valve                | Query port: 27020. Does not respond to the rules query.                                                                                                                   |
 | Base Defense                       | BASEDEFENSE         | Valve                | Query port: 27015. Does not respond to the rules query.                                                                                                                   |
 | Zombie Panic: Source               | ZPS                 | Valve                | Query port: 27015.                                                                                                                                                        |
+| Call Of Duty: Black Ops 3          | CODBO3              | Valve                | Query port: 27017.                                                                                                                                                        |
 
 ## Planned to add support:
 _
diff --git a/crates/lib/src/games/definitions.rs b/crates/lib/src/games/definitions.rs
index 7fa0dfa..261e6d2 100644
--- a/crates/lib/src/games/definitions.rs
+++ b/crates/lib/src/games/definitions.rs
@@ -62,6 +62,7 @@ pub static GAMES: Map<&'static str, Game> = phf_map! {
     "battlefield1942" => game!("Battlefield 1942", 23000, Protocol::Gamespy(GameSpyVersion::One)),
     "blackmesa" => game!("Black Mesa", 27015, Protocol::Valve(Engine::new(362_890))),
     "ballisticoverkill" => game!("Ballistic Overkill", 27016, Protocol::Valve(Engine::new(296_300))),
+    "codbo3" => game!("Call Of Duty: Black Ops 3", 27017, Protocol::Valve(Engine::new(311_210))),
     "codenamecure" => game!("Codename CURE", 27015, Protocol::Valve(Engine::new(355_180))),
     "colonysurvival" => game!("Colony Survival", 27004, Protocol::Valve(Engine::new(366_090))),
     "conanexiles" => game!("Conan Exiles", 27015, Protocol::Valve(Engine::new(440_900)), GatheringSettings {
diff --git a/crates/lib/src/games/valve.rs b/crates/lib/src/games/valve.rs
index dc9dbbf..2560376 100644
--- a/crates/lib/src/games/valve.rs
+++ b/crates/lib/src/games/valve.rs
@@ -40,6 +40,12 @@ game_query_mod!(
 game_query_mod!(barotrauma, "Barotrauma", Engine::new(602_960), 27016);
 game_query_mod!(blackmesa, "Black Mesa", Engine::new(362_890), 27015);
 game_query_mod!(brainbread2, "BrainBread 2", Engine::new(346_330), 27015);
+game_query_mod!(
+    codbo3,
+    "Call Of Duty: Black Ops 3",
+    Engine::new(311_210),
+    27017
+);
 game_query_mod!(codenamecure, "Codename CURE", Engine::new(355_180), 27015);
 game_query_mod!(
     colonysurvival,