As a data point for the future, I thought it would be useful to post up how the pre-order period went for Hot War.

Pre-orders (only through IPR) ran from the 10th until the 31st of July. During this period, we received 39 pre-orders through IPR. Each pre-order received the PDF version of the game for free.

The PDF version of the game was added to DTRPG on the 16th of July, but not actually advertised until the 19th (for various reasons). During the period the PDF has been available, we sold 45 PDFs and gave 10 complimentary copies of the PDF pack away.