Blue Heart slot is a progressive online and mobile slot from EGT. Rather unusually for EGT this game has 100 paylines. You do not have to play all 100 paylines however and are offered a choice between 1, 20, 30, 50 or all 100. Coin amounts range from 1 up to 5 coins per line, making Blue Heart slot not the cheapest slot in the world if you are playing with all 100 lines. This is a low to medium volatility slot too, so the big wins happen but not very often. High rollers may find themselves out of budget quite quickly.