The popularity of Starburst can be seen as a cumulative effect of the casinos promoting the multiple free spins offers and the knock-on effect of then seeing thousands of players searching for Starburst free spins offers. While the game is by no means a terrible slot. For hardcore online slot players, it isn't seen to be as good as the casino promotional material will try and tell you it is. The free spins being so low value made this slot a superbly effective slot choice for handing out free spins on. Factor that in with the low volatility, and their overall exposure in promoting this slot is minimal. With other casinos following suit with similar promotions, this effect has almost by itself catapulted Starburst into notoriety when the harsh truth is that it's a fairly average slot that tends to be avoided by serious players.