diff --git a/pkgs/development/libraries/fuzzylite/default.nix b/pkgs/development/libraries/fuzzylite/default.nix
new file mode 100644
index 000000000000..b6c7767a8d6f
--- /dev/null
+++ b/pkgs/development/libraries/fuzzylite/default.nix
@@ -0,0 +1,47 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchpatch
+, cmake
+, ninja
+, useFloat ? false
+}:
+
+stdenv.mkDerivation rec {
+  pname = "fuzzylite";
+  version = "6.0";
+
+  src = fetchFromGitHub {
+    owner = "fuzzylite";
+    repo = "fuzzylite";
+    rev = "v${version}";
+    hash = "sha256-i1txeUE/ZSRggwLDtpS8dd4uuZfHX9w3zRH0gBgGXnk=";
+  };
+  sourceRoot = "source/fuzzylite";
+
+  outputs = [ "out" "dev" ];
+
+  postPatch = ''
+    substituteInPlace CMakeLists.txt \
+      --replace "-Werror" "-Wno-error"
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    ninja
+  ];
+
+  cmakeFlags = [
+    "-DFL_BUILD_TESTS:BOOL=OFF"
+    "-DFL_USE_FLOAT:BOOL=${if useFloat then "ON" else "OFF"}"
+  ];
+
+  meta = with lib; {
+    description = "A fuzzy logic control library in C++";
+    homepage = "https://fuzzylite.com";
+    changelog = "https://github.com/fuzzylite/fuzzylite/${src.rev}/release/CHANGELOG";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ azahi ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/games/vcmi/default.nix b/pkgs/games/vcmi/default.nix
index 632d4fe7f2d8..abd0551081fd 100644
--- a/pkgs/games/vcmi/default.nix
+++ b/pkgs/games/vcmi/default.nix
@@ -8,6 +8,7 @@
 , boost
 , cmake
 , ffmpeg
+, fuzzylite
 , innoextract
 , luajit
 , minizip
@@ -15,7 +16,9 @@
 , pkg-config
 , python3
 , qtbase
+, qttools
 , tbb
+, unshield
 , wrapQtAppsHook
 , zlib
 , testers
@@ -24,21 +27,16 @@
 
 stdenv.mkDerivation rec {
   pname = "vcmi";
-  version = "1.1.1";
+  version = "1.2.1";
 
   src = fetchFromGitHub {
     owner = "vcmi";
     repo = "vcmi";
     rev = version;
     fetchSubmodules = true;
-    hash = "sha256-/BHpAXOCLi6d0+/uE79g8p6YO1swizItAwVlPVf/nkQ=";
+    hash = "sha256-F1g3ric23jKetl5aBG5NRpT4LnGXhBKZmGp2hg6Io9s=";
   };
 
-  postPatch = ''
-    substituteInPlace Version.cpp.in \
-      --subst-var-by GIT_SHA1 "0000000";
-  '';
-
   nativeBuildInputs = [
     cmake
     ninja
@@ -54,21 +52,24 @@ stdenv.mkDerivation rec {
     SDL2_ttf
     boost
     ffmpeg
+    fuzzylite
     luajit
     minizip
     qtbase
+    qttools
     tbb
     zlib
   ];
 
   cmakeFlags = [
-    "-DENABLE_TEST:BOOL=NO"
-    "-DENABLE_PCH:BOOL=NO"
-    # Make libvcmi.so discoverable in a non-standard location.
-    "-DCMAKE_INSTALL_RPATH:STRING=${placeholder "out"}/lib/vcmi"
-    # Upstream assumes relative value while Nixpkgs passes absolute.
-    # Both should be allowed: https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html
-    # Meanwhile work it around by passing a relative value.
+    "-DENABLE_LUA:BOOL=ON"
+    "-DENABLE_ERM:BOOL=ON"
+    "-DENABLE_GITVERSION:BOOL=OFF"
+    "-DENABLE_PCH:BOOL=OFF"
+    "-DENABLE_TEST:BOOL=OFF"
+    "-DFORCE_BUNDLED_MINIZIP:BOOL=OFF"
+    "-DFORCE_BUNDLED_FL:BOOL=OFF"
+    "-DCMAKE_INSTALL_RPATH:STRING=$out/lib/vcmi"
     "-DCMAKE_INSTALL_BINDIR:STRING=bin"
     "-DCMAKE_INSTALL_LIBDIR:STRING=lib"
     "-DCMAKE_INSTALL_DATAROOTDIR:STRING=share"
@@ -76,9 +77,11 @@ stdenv.mkDerivation rec {
 
   postFixup = ''
     wrapProgram $out/bin/vcmibuilder \
-      --prefix PATH : "${lib.makeBinPath [ innoextract ]}"
+      --prefix PATH : "${lib.makeBinPath [ innoextract ffmpeg unshield ]}"
   '';
 
+  doCheck = true;
+
   passthru.tests.version = testers.testVersion {
     package = vcmi;
     command = ''
@@ -88,12 +91,12 @@ stdenv.mkDerivation rec {
   };
 
   meta = with lib; {
-    description = "Open-source engine for Heroes of Might and Magic III";
+    description = "An open-source engine for Heroes of Might and Magic III";
     homepage = "https://vcmi.eu";
     changelog = "https://github.com/vcmi/vcmi/blob/${src.rev}/ChangeLog";
     license = with licenses; [ gpl2Only cc-by-sa-40 ];
     maintainers = with maintainers; [ azahi ];
     platforms = platforms.linux;
-    mainProgram = "vcmiclient";
+    mainProgram = "vcmilauncher";
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index daa2f2c392b4..b71f0c6f1da8 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4888,6 +4888,8 @@ with pkgs;
 
   fuzzel = callPackage ../applications/misc/fuzzel { };
 
+  fuzzylite = callPackage ../development/libraries/fuzzylite { };
+
   flashfocus = callPackage ../misc/flashfocus { };
 
   qt-video-wlr = libsForQt5.callPackage ../applications/misc/qt-video-wlr { };