portage-ng --merge
>>> Emerging : portage://games-engines/frotz-2.55-r1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://games-engines/frotz-2.55-r1
│ └─ file ─┤ 354.75 Kb frotz-2.55.tar.bz2
└─step 2─┤ install portage://games-engines/frotz-2.55-r1
│ └─ conf ─┤ USE = "ncurses unicode -sdl -sound"
└─step 3─┤ run portage://games-engines/frotz-2.55-r1
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
354.75 Kb to be downloaded.