The basic operation is similar, you spin a reel and you will almost always have the option to vary the bets per line. However, online slot games often have scenarios that do not exist (or not yet) in land-based casinos. They can be more complex but also more entertaining with increasingly advanced 3D animations. There are also bonus mini-games that make their appearance. In land-based casinos, the focus is always on simplicity to cater to a wide audience. In general, you will have no trouble adapting!