diff --git a/flake.lock b/flake.lock
index 515349c..06f69b8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1705666311,
-        "narHash": "sha256-VYdSQm7zq3AStyHhRr3SBCTA8fVzrl6WtIlXTs2Wlts=",
+        "lastModified": 1706487304,
+        "narHash": "sha256-LE8lVX28MV2jWJsidW13D2qrHU/RUUONendL2Q/WlJg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a455c5fb3ee513e2f443838a0e84d52b035adb67",
+        "rev": "90f456026d284c22b3e3497be980b2e47d0b28ac",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 47eb34a..634d350 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,6 +38,7 @@
         overlays.default = final: prev: {
           attic = final.callPackage ./packages/attic { };
           attic-client = final.attic.override { clientOnly = true; };
+          celeste64 = final.callPackage ./packages/celeste64 { };
           ipsw = final.callPackage ./packages/ipsw { };
           jlink = final.callPackage ./packages/jlink { };
           zephyrPackages = final.callPackage ./packages/zephyr { };
diff --git a/packages/celeste64/default.nix b/packages/celeste64/default.nix
new file mode 100644
index 0000000..8ef42ff
--- /dev/null
+++ b/packages/celeste64/default.nix
@@ -0,0 +1,43 @@
+{ lib, fetchFromGitHub, buildDotnetModule, dotnetCorePackages, libGL, stdenv
+, systemdLibs, libpulseaudio, wayland, libdecor, libxkbcommon }:
+buildDotnetModule {
+  pname = "Celeste64";
+  version = "1.0.1";
+
+  src = fetchFromGitHub {
+    owner = "ExOK";
+    repo = "Celeste64";
+    rev = "517991f8cdacf2c9d8fb71f53637e581399e197b";
+    sha256 = "sha256-DFrOkk86lvFoleq2RwfXPiMMhVGz+aSKdtpAje3+H4A=";
+  };
+
+  nugetDeps = ./deps.nix;
+  dotnet-runtime = dotnetCorePackages.runtime_8_0;
+  dotnet-sdk = dotnetCorePackages.sdk_8_0;
+
+  executables = [ "Celeste64" ];
+  projectFile = "Celeste64.csproj";
+
+  runtimeDeps = [
+    stdenv.cc.cc.lib
+    libGL
+    systemdLibs
+    libpulseaudio
+    wayland
+    libdecor
+    libxkbcommon
+  ];
+
+  preFixup = ''
+    cp -r ./Content $out/lib/Celeste64/Content
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/ExOK/Celeste64";
+    description =
+      "A game made by the Celeste developers in a week(ish, closer to 2)";
+    license = licenses.unfreeRedistributable;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ artemist ];
+  };
+}
diff --git a/packages/celeste64/deps.nix b/packages/celeste64/deps.nix
new file mode 100644
index 0000000..d0854bf
--- /dev/null
+++ b/packages/celeste64/deps.nix
@@ -0,0 +1,40 @@
+# This file was automatically generated by passthru.fetch-deps.
+# Please dont edit it manually, your changes might get overwritten!
+
+{ fetchNuGet }: [
+  (fetchNuGet {
+    pname = "FosterFramework";
+    version = "0.1.14-alpha";
+    sha256 = "1bqzka53kcvmmlwxa33v8my2gwqykcdwmcrbh7hbrx84nzcqbvrl";
+  })
+  (fetchNuGet {
+    pname = "Microsoft.NET.ILLink.Tasks";
+    version = "8.0.1";
+    sha256 = "1drbgqdcvbpisjn8mqfgba1pwb6yri80qc4mfvyczqwrcsj5k2ja";
+  })
+  (fetchNuGet {
+    pname = "SharpGLTF.Core";
+    version = "1.0.0-alpha0031";
+    sha256 = "0ln78mkhbcxqvwnf944hbgg24vbsva2jpih6q3x82d3h7rl1pkh6";
+  })
+  (fetchNuGet {
+    pname = "SharpGLTF.Runtime";
+    version = "1.0.0-alpha0031";
+    sha256 = "0lvb3asi3v0n718qf9y367km7qpkb9wci38y880nqvifpzllw0jg";
+  })
+  (fetchNuGet {
+    pname = "Sledge.Formats";
+    version = "1.2.2";
+    sha256 = "1y0l66m9rym0p1y4ifjlmg3j9lsmhkvbh38frh40rpvf1axn2dyh";
+  })
+  (fetchNuGet {
+    pname = "Sledge.Formats.Map";
+    version = "1.1.5";
+    sha256 = "1bww60hv9xcyxpvkzz5q3ybafdxxkw6knhv97phvpkw84pd0jil6";
+  })
+  (fetchNuGet {
+    pname = "System.Numerics.Vectors";
+    version = "4.5.0";
+    sha256 = "1kzrj37yzawf1b19jq0253rcs8hsq1l2q8g69d7ipnhzb0h97m59";
+  })
+]