Sanctum Fortress - Start preparing for the attackers... By building defensive towers! From the guy who brought you the technically impressive (but awfully designed) Preinvention! So this is a side project I've been working for a while now, and finally got the motivational boost to release the first build! It's a full-blown (sorta) tower defense in tf2! No plugins, no mods, all done with hammer. It comes with a 5-wave mission that throws unusual robots at the player, I got no idea if it's balanced yet. Outside of the popfile, all custom content is packed in, so it should be auto-downloader friendly. Every thing you need to know how to play the map is explained in your spawn room, have fun!