diff --git a/.gitignore b/.gitignore
index c9d45e4..1a2db68 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,41 +1 @@
-/knavalbattle-4.10.1.tar.xz
-/knavalbattle-4.10.2.tar.xz
-/knavalbattle-4.10.3.tar.xz
-/knavalbattle-4.10.4.tar.xz
-/knavalbattle-4.10.90.tar.xz
-/knavalbattle-4.10.95.tar.xz
-/knavalbattle-4.10.97.tar.xz
-/knavalbattle-4.11.0.tar.xz
-/knavalbattle-4.11.1.tar.xz
-/knavalbattle-4.11.2.tar.xz
-/knavalbattle-4.11.3.tar.xz
-/knavalbattle-4.11.90.tar.xz
-/knavalbattle-4.11.95.tar.xz
-/knavalbattle-4.11.97.tar.xz
-/knavalbattle-4.12.0.tar.xz
-/knavalbattle-4.12.1.tar.xz
-/knavalbattle-4.12.2.tar.xz
-/knavalbattle-4.12.3.tar.xz
-/knavalbattle-4.12.90.tar.xz
-/knavalbattle-4.12.95.tar.xz
-/knavalbattle-4.12.97.tar.xz
-/knavalbattle-4.13.0.tar.xz
-/knavalbattle-4.13.1.tar.xz
-/knavalbattle-4.13.2.tar.xz
-/knavalbattle-4.13.3.tar.xz
-/knavalbattle-4.13.97.tar.xz
-/knavalbattle-4.14.0.tar.xz
-/knavalbattle-4.14.1.tar.xz
-/knavalbattle-4.14.2.tar.xz
-/knavalbattle-4.14.3.tar.xz
-/knavalbattle-14.11.97.tar.xz
-/knavalbattle-14.12.1.tar.xz
-/knavalbattle-14.12.2.tar.xz
-/knavalbattle-14.12.3.tar.xz
-/knavalbattle-15.04.0.tar.xz
-/knavalbattle-15.04.1.tar.xz
-/knavalbattle-15.04.2.tar.xz
-/knavalbattle-15.04.3.tar.xz
-/knavalbattle-15.08.0.tar.xz
-/knavalbattle-15.08.3.tar.xz
 /knavalbattle-15.12.0.tar.xz
diff --git a/knavalbattle.spec b/knavalbattle.spec
index 1003c07..2edaba6 100644
--- a/knavalbattle.spec
+++ b/knavalbattle.spec
@@ -5,7 +5,7 @@ Version: 15.12.0
 Release: 1%{?dist}
 
 License: GPLv2+ and GFDL
-URL:     https://projects.kde.org/projects/kde/kdegames/%{name}
+URL:     https://projects.kde.org/%{name}
 %global revision %(echo %{version} | cut -d. -f3)
 %if %{revision} >= 50
 %global stable unstable
@@ -14,9 +14,27 @@ URL:     https://projects.kde.org/projects/kde/kdegames/%{name}
 %endif
 Source0: http://download.kde.org/%{stable}/applications/%{version}/src/%{name}-%{version}.tar.xz
 
-BuildRequires: desktop-file-utils
-BuildRequires: kdelibs4-devel >= 4.14
-BuildRequires: libkdegames4-devel
+BuildRequires:  cmake
+BuildRequires:  desktop-file-utils
+BuildRequires:  extra-cmake-modules
+BuildRequires:  kf5-kconfig-devel
+BuildRequires:  kf5-kconfigwidgets-devel
+BuildRequires:  kf5-kcoreaddons-devel
+BuildRequires:  kf5-kdbusaddons-devel
+BuildRequires:  kf5-kdnssd-devel
+BuildRequires:  kf5-kguiaddons-devel
+BuildRequires:  kf5-ki18n-devel
+BuildRequires:  kf5-kiconthemes-devel
+BuildRequires:  kf5-kio-devel
+BuildRequires:  kf5-knotifications-devel
+BuildRequires:  kf5-knotifyconfig-devel
+BuildRequires:  kf5-kwidgetsaddons-devel
+BuildRequires:  kf5-kxmlgui-devel
+BuildRequires:  kf5-rpm-macros
+#BuildRequires:  libappstream-glib
+%global majmin_ver %(echo %{version} | cut -d. -f1,2)
+BuildRequires:  libkdegames-devel >= %{majmin_ver}
+BuildRequires:  pkgconfig(Qt5Widgets)
 
 %description
 Naval Battle is a ship sinking game for KDE. Ships are placed on a board
@@ -32,7 +50,7 @@ ships wins the game.
 %build
 mkdir %{_target_platform}
 pushd %{_target_platform}
-%{cmake_kde4} ..
+%{cmake_kf5} ..
 popd
 
 make %{?_smp_mflags} -C %{_target_platform}
@@ -41,36 +59,35 @@ make %{?_smp_mflags} -C %{_target_platform}
 %install
 make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
 
-%find_lang %{name} --with-kde
-
-
 %check
-desktop-file-validate %{buildroot}%{_kde4_datadir}/applications/kde4/knavalbattle.desktop
+#appstream-util validate-relax --nonet %{buildroot}%{_kf5_datadir}/appdata/org.kde.%{name}.appdata.xml ||:
+desktop-file-validate %{buildroot}%{_kf5_datadir}/applications/org.kde.%{name}.desktop
 
 
 %post
-touch --no-create %{_kde4_iconsdir}/hicolor &> /dev/null || :
+touch --no-create %{_kf5_datadir}/icons/hicolor &> /dev/null || :
 
 %postun
 if [ $1 -eq 0 ] ; then
-touch --no-create %{_kde4_iconsdir}/hicolor &> /dev/null
-gtk-update-icon-cache %{_kde4_iconsdir}/hicolor &> /dev/null || :
-update-desktop-database -q &> /dev/null ||:
+touch --no-create %{_kf5_datadir}/icons/hicolor &> /dev/null
+gtk-update-icon-cache %{_kf5_datadir}/icons/hicolor &> /dev/null || :
 fi
 
 %posttrans
-gtk-update-icon-cache %{_kde4_iconsdir}/hicolor &> /dev/null || :
-update-desktop-database -q &> /dev/null ||:
-
-%files -f %{name}.lang
-%doc COPYING*
-%doc AUTHORS
-%{_kde4_bindir}/knavalbattle
-%{_kde4_datadir}/applications/kde4/knavalbattle.desktop
-%{_kde4_datadir}/kde4/services/knavalbattle.protocol
-%{_kde4_iconsdir}/hicolor/*/*/*
-%{_kde4_appsdir}/knavalbattle/
-%{_kde4_appsdir}/kconf_update/knavalbattle.upd
+gtk-update-icon-cache %{_kf5_datadir}/icons/hicolor &> /dev/null || :
+
+%files
+%license COPYING*
+%{_kf5_bindir}/%{name}
+#{_kf5_datadir}/appdata/org.kde.%{name}.appdata.xml
+%{_kf5_datadir}/applications/org.kde.%{name}.desktop
+%{_kf5_datadir}/icons/hicolor/*/*/*
+%{_kf5_datadir}/%{name}/
+%{_kf5_datadir}/kconf_update/%{name}*
+#{_kf5_datadir}/knotifications5/%{name}.notifyrc
+%{_kf5_datadir}/kservices5/%{name}.protocol
+%{_kf5_datadir}/kxmlgui5/%{name}/
+%{_kf5_datadir}/doc/HTML/en/%{name}/
 
 
 %changelog