The game isn't designed to do anything. Gambling on random numbers is purely about luck.
Well, game IS designed for something, to be played, it is a game after all. Sure, it is gambling and it is dice (or hi/lo, whatever you want to call it) and there is a chance to win and a chance to lose (a bigger chance to lose of course, it is gambling on a casino after all) but people still try to think freebitcoin as a casino even with the freckling FREE in the name.
Yes, you can bet on sports and sure you can play lottery and there is always the most famous dice game but that doesn't mean freebitcoin can be considered a casino, it is a faucet with casino features to me, not the other way around.
Some people see this as a casino that has a faucet, I doubt that is true, before all of this there was the faucet and they made their money from advertisement so the faucet was the real deal and then the gambling part was added, so if you ask me it is a faucet with casino in it not a casino with faucet in it.