diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f6873e..cae349d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ Who knows what the future holds...
 Games:
 - [Don't Starve Together](https://store.steampowered.com/app/322330/Dont_Starve_Together/) support.
 - [Colony Survival](https://store.steampowered.com/app/366090/Colony_Survival/) support.
+- [Onset](https://store.steampowered.com/app/1105810/Onset/) support.
 
 ### Breaking:
 Nothing.
diff --git a/GAMES.md b/GAMES.md
index 17e9fd0..b3ce845 100644
--- a/GAMES.md
+++ b/GAMES.md
@@ -38,6 +38,7 @@ Beware of the `Notes` column, as it contains information about query port offset
 | Age of Chivalry                    | AOC      | Valve Protocol            |                                                                                                                                                                           |
 | Don't Starve Together              | DST      | Valve Protocol            | Query port is 27016.                                                                                                                                                      |
 | Colony Survival                    | COLU     | Valve Protocol            |                                                                                                                                                                           |
+| Onset                              | ONSET    | Valve Protocol            | Query port is 7776.                                                                                                                                                       |
 
 ## Planned to add support:
 _
diff --git a/examples/master_querant.rs b/examples/master_querant.rs
index 0263456..f0f39da 100644
--- a/examples/master_querant.rs
+++ b/examples/master_querant.rs
@@ -1,6 +1,6 @@
 
 use std::env;
-use gamedig::{aliens, aoc, arma2oa, ase, asrd, bat1944, bm, cosu, cs, cscz, csgo, css, dod, dods, doi, dst, GDResult, gm, hl2dm, hldms, ins, insmic, inss, l4d, l4d2, mc, pz, ror2, rust, sc, sdtd, tf, tf2, tfc, ts, unturned};
+use gamedig::{aliens, aoc, arma2oa, ase, asrd, bat1944, bm, cosu, cs, cscz, csgo, css, dod, dods, doi, dst, GDResult, gm, hl2dm, hldms, ins, insmic, inss, l4d, l4d2, mc, onset, pz, ror2, rust, sc, sdtd, tf, tf2, tfc, ts, unturned};
 use gamedig::protocols::minecraft::LegacyGroup;
 use gamedig::protocols::valve;
 use gamedig::protocols::valve::App;
@@ -76,6 +76,7 @@ fn main() -> GDResult<()> {
         "aoc" => println!("{:#?}", aoc::query(ip, port)?),
         "dst" => println!("{:#?}", dst::query(ip, port)?),
         "cosu" => println!("{:#?}", cosu::query(ip, port)?),
+        "onset" => println!("{:#?}", onset::query(ip, port)?),
         _ => panic!("Undefined game: {}", args[1])
     };
 
diff --git a/src/games/mod.rs b/src/games/mod.rs
index bb843ee..fcff5f3 100644
--- a/src/games/mod.rs
+++ b/src/games/mod.rs
@@ -71,3 +71,5 @@ pub mod aoc;
 pub mod dst;
 /// Colony Survival
 pub mod cosu;
+/// Onset
+pub mod onset;
diff --git a/src/games/onset.rs b/src/games/onset.rs
new file mode 100644
index 0000000..1f82d52
--- /dev/null
+++ b/src/games/onset.rs
@@ -0,0 +1,12 @@
+use crate::GDResult;
+use crate::protocols::valve;
+use crate::protocols::valve::{game, SteamID};
+
+pub fn query(address: &str, port: Option<u16>) -> GDResult<game::Response> {
+    let valve_response = valve::query(address, match port {
+        None => 7776,
+        Some(port) => port
+    }, SteamID::ONSET.as_app(), None, None)?;
+
+    Ok(game::Response::new_from_valve_response(valve_response))
+}
diff --git a/src/protocols/valve/types.rs b/src/protocols/valve/types.rs
index e97f2e5..3ceb42f 100644
--- a/src/protocols/valve/types.rs
+++ b/src/protocols/valve/types.rs
@@ -207,6 +207,8 @@ pub enum SteamID {
     ASRD = 563560,
     /// Risk of Rain 2
     ROR2 = 632360,
+    /// Onset
+    ONSET = 1105810,
 }
 
 impl SteamID {