Long ago in 2007 when I was still crazy-inspired to crank out Lego originals based on popular science fiction movie design sensibilities, I really felt I needed a walker vehicle of my own. Enter the heavily armored HT-AT.
This led to the birth of my HT-AT. A Clone-Wars-Era walker made to fit right in with the AT-TE and other vehicles used by the Galactic Republic, like the LAAT dropship.
About 3 months ago, I revisited my MOC (Model of Choice) because I felt I needed to update some of the construction and finer details. I reduced the amount of visible studs, streamlining it just a tad.
It's technically still under construction, as I'm a bit of a perfectionist. Plus, I need to add some moveable support mechanism to the underside. I designed it to attach to my custom LAAT Dropship, but the weight of the much larger model does put some stress on the legs of the smaller walker.
HEAVY TERRAIN ARMORED TRANSPORT
Clone Wars Era
The HT-AT is a multi-role walker made especially for extremely rugged terrain. it is an extremely versatile machine that provides ground support as well as transport capabilities. Much smaller than an AT-TE, HT-AT's can be used in a number of tight spaces such as caves or man-made structures. Its legs are designed to scale a variety of challenging surfaces. It can climb a vertical cliff and has even been deployed in zero gravity environments, attaching itself to large craft, such as cruisers and space stations. After the much smaller AT-RT, it is the 2nd fastest walker used by the republic, though it has a limited range.
This design is not "cannon" or an official Star Wars design. I created the model myself about 5 years ago out of a love for similar vehicles.