I have tried both the gtk2 version and the qt5 version and contrary to what you claim, the gtk2 version is completely broken with black artifacts flickering on the screen while the qt5 version is playable.
This is with XFCE (X11) on an arm64 machine. The debdiff of my qt5 experiment is attached (not a patch for the actual package) to demonstrate how I have built it.
diff -Nru c-evo-dh-3.1/debian/changelog c-evo-dh-3.1/debian/changelog --- c-evo-dh-3.1/debian/changelog 2025-11-28 17:11:02.000000000 +0000 +++ c-evo-dh-3.1/debian/changelog 2026-02-11 19:45:15.000000000 +0000 @@ -1,3 +1,10 @@ +c-evo-dh (3.1-1.1) unstable; urgency=medium + + * Non-maintainer upload. + * Install the qt5 version as "-gtk2" binary. + + -- Bastian Germann <[email protected]> Wed, 11 Feb 2026 19:45:15 +0000 + c-evo-dh (3.1-1) unstable; urgency=medium * New upstream version (Add Indians Tribe) diff -Nru c-evo-dh-3.1/debian/control c-evo-dh-3.1/debian/control --- c-evo-dh-3.1/debian/control 2025-11-17 18:42:48.000000000 +0000 +++ c-evo-dh-3.1/debian/control 2026-02-11 15:41:49.000000000 +0000 @@ -5,7 +5,7 @@ Section: games Priority: optional Build-Depends: debhelper-compat (= 13) -Build-Depends-Arch: fpc, lcl, lcl-gtk2, libjpeg-dev, libgtk2.0-dev +Build-Depends-Arch: fpc, lcl, lcl-qt5, libjpeg-dev Standards-Version: 4.7.2 Homepage: https://sourceforge.net/projects/c-evo-eh/ Vcs-Browser: https://salsa.debian.org/debian/c-evo-dh diff -Nru c-evo-dh-3.1/debian/rules c-evo-dh-3.1/debian/rules --- c-evo-dh-3.1/debian/rules 2025-08-10 20:13:30.000000000 +0000 +++ c-evo-dh-3.1/debian/rules 2026-02-11 19:43:36.000000000 +0000 @@ -18,6 +18,9 @@ export LibDir = /lib/games export ExecDir = /libexec +override_dh_auto_build-arch: + dh_auto_build -- stdai c-evo-dh-qt5 + override_dh_auto_build-indep: # Nothing to do here @@ -25,6 +28,7 @@ make install-data override_dh_auto_install-arch: + mv c-evo-dh-qt5 c-evo-dh-gtk2 make install-binary #Override dh_strip to preserve line numbers in stack trace
