The wild symbol is the golden eagle and it will substitute for all of the other symbols, except for the bonus symbols, to help and form winning combinations.
The scatter symbol features a large catapult and it is the key to the free spins feature.
Every tenth spin of the reels is called a Wild Fire Spin. If one of the special S.P.Q.R banner symbols lands on a base game spin then the position it lands on is marked with fire. On the tenth spin, all of the positions that are marked with fire will become wild for that spin. The wild symbol can only land on these spins, but it will helpfully lead to some big payouts.
If you land the bonus symbol on reels two, three and four simultaneously then the Great War Free Games feature is triggered. You are given the choice of four different bonus games. The first is 15 free spins with 5 random wilds on each spin. The second is 10 free spins with 7 random wilds on each spin. The third is 6 free spins with 10 random wilds on each spin. The fourth is called Mystery Shield and it awards 5, 10 or 15 free spins with 5, 7 or 10 random wilds on each spin.
The slot also has a Buy Feature option. You can by entry to the Great War Free Games bonus by paying 80 times your total bet.
Shields of Rome offers a top payout of 320x for landing five wild symbols along a payline. The soldier can payout up to 240x, the body armour up to 160x, the helmet and the sword can both payout up to 100x, and the goblet and the map can both payout up to 60x. A and K can both payout up to 32x, while Q, J and 10 can all payout up to 20x.