You should really check out the HPG Online Slot Real Ghost, I think you may like it.
The game has 10 paylines on 5 reels. 3, 4 or 5 Scatters trigger 10 Free Spins.
A special expanding Bonus-symbol will be selected for the free games. Many players may know such a feature from Book of RA.
I played Real Ghost at Goldruncasino and had a nice hit on a bet of 0,30 Cents: