Of course! TTD and Locomotion were developed by the same person. From my understanding Locomotion is closer to the Roller Coaster Tycoon engine and UI. Also I think I remember reading an interview in which Chris Sawyer said Locomotion had the cleanest code out of the three.
On that note, considering the original engines are similar I wonder if OpenRCT2 and OpenLoco have any big similarities in the code base as well...
I never played the game but watched some trailers and gameplay videos. I'm 99% certain that Helldivers 2 is following the Starship Troopers formula and purely making fun of patrionism, propaganda, war, the military, military personnel, "freedom", heroism, politics and military advertisements and turning that into a game. There's just so many obvious signs, it seems impossible to miss. In other words, it is a political game. Or maybe I just really don't get either of the two.