They have 5 rounds, each round with 4 puzzles. The answers are all English words.
For each round, all the 4 puzzles release on a certain date. If round 1 puzzles release today, round 2 will release day-after tomorrow. With each passing day one hint will be provided for all puzzles.

For CISRA, one of your players need to be an Australian to claim the prize, but we have none. We are in it just for the love of solving.