Trained on a few of my Screenshots from the online video game, Star Citizen.
This video created at time those screenshots were compiled: (gameplay)

to give an idea of the "ground truth" quality (the game has changed a lot in the last year)

Full captions will be supplied in each version once they are collected into a text only format.
Find them in my Prompt Lists (DJZ-Nodes on Github) or check the "Training data" download option here on Civit.