gentoo-overlay/games-arcade/triplexinvaders/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>games</herd>
  <longdescription lang="en">
In Triplex Invaders, the player pilots a spaceship against a never ending horde
of enemy ships. It has psychedelic 3d graphics (but 2d gameplay).
</longdescription>
</pkgmetadata>