SlackBuildsOrg/games/dustrac

Dust Racing (Dustrac) is a tile-based, cross-platform 2D racing game written in
Qt (C++) and OpenGL. Dust Racing comes with a Qt-based level editor for easy
level creation. A custom engine, MiniCore, is used for physics modeling. Dust
Racing 2D is inspired by Super Cars and Slicks'n Slide.

If you'd like to optionally build against the optional dependency qt5 then run
the slackbuild with USEQT5=yes, like

  USEQT5=yes ./dustrac.SlackBuild