diff --git a/CHANGELOG.md b/CHANGELOG.md
index 910768d..2c48280 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ Games:
 - [Quake 2](https://store.steampowered.com/app/2320/Quake_II/) support.
 - [Quake 1](https://store.steampowered.com/app/2310/Quake/) support.
 - [Quake 3: Arena](https://store.steampowered.com/app/2200/Quake_III_Arena/) support.
+- [Hell Let Loose](https://store.steampowered.com/app/686810/Hell_Let_Loose/) support.
 
 ### Breaking:
 - Every function that used `&str` for the address has been changed to `&IpAddr` (thanks [@Douile](https://github.com/Douile) for the re-re-write).
diff --git a/GAMES.md b/GAMES.md
index df3f171..9278b83 100644
--- a/GAMES.md
+++ b/GAMES.md
@@ -53,6 +53,7 @@ Beware of the `Notes` column, as it contains information about query port offset
 | Quake 2                            | QUAKE2   | Quake 2                      |                                                                                                                                                                           |
 | Quake 1                            | QUAKE1   | Quake 1                      |                                                                                                                                                                           |
 | Quake 3: Arena                     | QUAKE3A  | Quake 3                      |                                                                                                                                                                           |
+| Hell Let Loose                     | HLL      | Valve Protocol               | Query port is 26420. Note that on this port it might not send players data, as there might be another query port that does send players data.                             |
 
 ## Planned to add support:
 _
diff --git a/examples/master_querant.rs b/examples/master_querant.rs
index 8485144..b5a1ae7 100644
--- a/examples/master_querant.rs
+++ b/examples/master_querant.rs
@@ -2,7 +2,7 @@ use gamedig::protocols::{gamespy, quake};
 use gamedig::protocols::minecraft::LegacyGroup;
 use gamedig::protocols::valve;
 use gamedig::protocols::valve::Engine;
-use gamedig::{aliens, aoc, arma2oa, ase, asrd, avorion, bat1944, bb2, bf1942, bm, bo, ccure, cosu, cs, cscz, csgo, css, dod, dods, doi, dst, ffow, gm, hl2dm, hldms, ins, insmic, inss, l4d, l4d2, mc, ohd, onset, pz, ror2, rust, sc, sdtd, ss, tf, tf2, tfc, ts, unturned, ut, vr, GDResult, cw, quake2, quake1, quake3a};
+use gamedig::{aliens, aoc, arma2oa, ase, asrd, avorion, bat1944, bb2, bf1942, bm, bo, ccure, cosu, cs, cscz, csgo, css, dod, dods, doi, dst, ffow, gm, hl2dm, hldms, ins, insmic, inss, l4d, l4d2, mc, ohd, onset, pz, ror2, rust, sc, sdtd, ss, tf, tf2, tfc, ts, unturned, ut, vr, GDResult, cw, quake2, quake1, quake3a, hll};
 use std::env;
 use std::net::IpAddr;
 
@@ -129,6 +129,7 @@ fn main() -> GDResult<()> {
         "quake2" => println!("{:#?}", quake2::query(ip, port)?),
         "quake1" => println!("{:#?}", quake1::query(ip, port)?),
         "quake3a" => println!("{:#?}", quake3a::query(ip, port)?),
+        "hll" => println!("{:#?}", hll::query(ip, port)?),
         _ => panic!("Undefined game: {}", args[1]),
     };
 
diff --git a/src/games/hll.rs b/src/games/hll.rs
new file mode 100644
index 0000000..152f8cf
--- /dev/null
+++ b/src/games/hll.rs
@@ -0,0 +1,17 @@
+use std::net::IpAddr;
+use crate::{
+    protocols::valve::{self, game, SteamApp},
+    GDResult,
+};
+
+pub fn query(address: &IpAddr, port: Option<u16>) -> GDResult<game::Response> {
+    let valve_response = valve::query(
+        address,
+        port.unwrap_or(26420),
+        SteamApp::HLL.as_engine(),
+        None,
+        None,
+    )?;
+
+    Ok(game::Response::new_from_valve_response(valve_response))
+}
diff --git a/src/games/mod.rs b/src/games/mod.rs
index f3ff752..d2d9e1e 100644
--- a/src/games/mod.rs
+++ b/src/games/mod.rs
@@ -100,3 +100,5 @@ pub mod quake2;
 pub mod quake1;
 /// Quake 3: Arena
 pub mod quake3a;
+/// Hell Let Loose
+pub mod hll;
diff --git a/src/protocols/valve/types.rs b/src/protocols/valve/types.rs
index 39d9658..4d18937 100644
--- a/src/protocols/valve/types.rs
+++ b/src/protocols/valve/types.rs
@@ -308,6 +308,8 @@ pub enum SteamApp {
     ONSET,
     /// V Rising
     VR,
+    /// Hell Let Loose
+    HLL,
 }
 
 impl SteamApp {
@@ -355,6 +357,7 @@ impl SteamApp {
             SteamApp::OHD => Engine::new_source_with_dedicated(736590, 950900),
             SteamApp::ONSET => Engine::new_source(1105810),
             SteamApp::VR => Engine::new_source(1604030),
+            SteamApp::HLL => Engine::new_source(686810),
         }
     }
 }