This is a castle block set. There are now 11 different pieces:
wall, corner turret, open gate, closed gate, castle end, castle door, roof end and roof center, added 135 degree corner, short wall and pointed round roof.
A standard parts list is provided as file: castle_playset_standard_pieces.pdf
all the .stl files are zipped into two files:
File: assembly_2_110905g_labeled.skp contains all pieces. However, some of the other .skp files may be more convenient.
This set can make a 3X larger version of "miniature castle" thing:7013
The little alien is Zomboe's thing 1: thing:2958
parts lists are included for two possible assemblies.
assembly_1_parts_list.pdf see 3rd image on left (similar to 2nd image)
assembly_2_parts_list.pdf see 4th image on left (similar to 1st image)
the assembly parts lists refer to the standard pieces list which refers to the actual .stl files.
135 degree corner allows an octagonal castle.
the short wall allows combining a half octogon with a rectangular section as shown in the top image.