KyleCS: How can I gift a freebie game I already own to someone? Haven't seen an option to do that. I got Duke Nukem 3D for free and don't want it.
Spinorial: Go to your Games library. At the top, go to the tab "Gifts". There you'll see all the gift codes you have, past and current. Just click on the one you want, copy it and either post it openly (likely to be grabbed by a random passer), or PM it to someone who says they want it.
Seems that doesn't work with a freebie game? No codes are shown in "Gifts", even though I'd like to gift to someone else the Duke Nukem 3D I got for free.