It all depends on the casino website where you are playing, some casino websites set their minimum stake to be $1 while others set it lower than that but have it in mind that the lower you stake the lower your profits will be if you eventually win the game.
You can play crash games if you have small cash but still want to win big although the game is risky but with some luck you should win but stake only what you can afford to lose.
You can play crash games if you have small cash but still want to win big although the game is risky but with some luck you should win but stake only what you can afford to lose.