Sanctum 2's release is hovering over us like a drone, and that's a good thing, because Dr Smith rather enjoyed the original game, and I've got a kick out of what I've played so far of that shiny sequel. However, there is already something else with the Sanctum name on it on the Steam store page, and that's Super Sanctum TD. And this where things get a bit meta: it's a tower defence game from inside Sanctum 2, as you can see in the trailer below. It is apparently the result of nine months work, and is either free if you pre-order, or $4. It's a tower defence game, like I am not sure they actually made in 16-bit days.