gm_collapsypants

The latest version of my first Half-Life 2 map, also the first map I've ever finished and released, has been updated for Garry's Mod. No real changes that are specific to GM, beside the name, but the tower can now be reset. Full instructions are, as is to be expected, in the readme. Should you, for whatever reason, still want the original map, grab it here, or here for a slightly modified version with water.
Those who want more detailed instructions on the reset feature can read the tutorial.
Last, but not least, don't forget to grab a copy of the map that inspired mine, featuring a fully functional trebuchet: trebuchetcanyon.zip