The trucks are one of the vehicles available. They can be printed in four different colors and each has a choice of four different loads - Water, Fuel, Open, and Covered. The chassis are all the same consisting of the main frame, cab cover, four re-enforcements, six interior wheel parts, and two additional parts. The different payloads can be the same color as the chassis or can be different. The open truck is carrying most of the boxes.
There are a lot of other vehicles, including drop ships, and a freight hauling spaceship. The buildings I have assembled so far are the water tower, wind powered generator, solar panel, a pair of storage tanks, a landing pad, a greenhouse, a storage shed, and two of the habitats. The habitats have three different types of sidings and each type is available in four or five colors with a total of seven different colors. The farm set has an additional habitat in one of the siding types with a different color pattern. This gives a total of fourteen different color and siding combinations. I left the bottoms off of the habitats so that they can be stacked. Each habitat is assembled with twelve panels has six solid side panels, six window side panels, and two chimney panels to choose from. These can be arranged in any order. Additional items that can be added are the door, up to three dormers, and if desired a part to connect multiple habitats together.
The prefab habitats. The one on the left has a dormer added above the doorway.
Landing pad, greenhouse, shed and large pallet of boxes.
Water tower, wind powered generator, solar panel, and two storage tanks.
I still have five of the habitats to assemble, ten service droids with four small parts vehicles, and a few additional items from the farm set. There are some other vehicles I am thinking of printing and assembling and am still undecided about making the cargo spaceship. There are eleven different versions of the spaceship to choose from and the model has a total of 42 pages of parts to print.
All the items that I have printed and assembled so far are fairly easy to assemble and fit together very well. While not any particular brand the cargo trucks and some of the vehicles could be used for present day 28mm skirmish games. The link to the free items is free stuff