Sci Fi series that starts when a ship full of military prisoners crash on planet Mars on the way. Mars is terraformed into a hunting preserve where exotic animals are killed by shooting them with drug that causes them to die in ecstasy.

[Ky]

You should include the spoilers in one of your posts but you can hide them under a spoiler tag (works on website only, app doesn't hide spoilers). Spoilers often help in narrowing down the possibilities.

Also, please add to your title the year or range of years in which you read this book, it really helps.

[Kris]

OP (original poster, Leon) account is deleted. Moving thread to the "Now we'll never know" folder.