I’m not sure I understand what you mean. This is a free game, so no key is required; you can download it already. The same goes for GameJolt, another platform this game can be found on.
I think I recall the Desura bundle you’re talking about but that was something someone else was doing and that we just said we were ok with (since Pacewar, like all of our games, is open source). We provided them with a bunch of Desura keys or something so they could give them away. Other than that we had no involvement in that.