Yes! On a lot of games, such as online slots, absolutely anyone is in with a chance of scooping the jackpot. In fact, lots of sites offer no deposit slots, so you don’t even need to pay in anything at all. So it's perfectly possible that you could be in for a chance of a top prize with placing a small bet. However, some games, like classic table games, don't have one specific jackpot. So you will need to build up your winning slowly over time.