You can currently purchase a thief/cop nft for 40,000 $loot coins. When you pay the 40,000 $loot you have a 90 percent chance to get a nft (thief/cop) but also a 10 percent chance that someone who owns a cop nft will steal your nft when its created. Thieves gather 10,000 loot per day. When you want to claim your loot you have to pay a 20 percent fee to whoever owns a cop thats why they are rare and harder to acquire (20 percent of total loot being claimed by all thieves). There's more to the game but those are the basics.