300 Shields Slot Casinos: Top Picks to Play Online in the UK

Written by James Gibson

Last Updated on 27.05.2026

NextGen Gaming released the 300 Shields slot back in 2014. Inspired by the military might of ancient Sparta, it’s a 5×3 slot with 25 paylines and an RTP of 95.3%. The highlight of this highly volatile slot is the free spins round with an increasing multiplier wild.

When you finish reading this 300 Shields slot review, why not give the game a try? We’ve put together a list of the best NextGen Gaming casinos. Look through our recommendations and choose whichever one appeals to you the most. Each one is a safe, trustworthy casino site.

All Sites Licensed by the: Gambling Commission

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This review gives you a summary of the 300 Shields slot and its features. By reading it, you’ll find out how the free spins round works and what the general gameplay is like. 300 Shields may be over a decade old, but it’s still worth checking out.

Overview of the 300 Shields Slot Game

300 Shields in Brief:

• Release Date: 15 April 2014
• Type: Video Slot
• Theme: Sparta, Ancient Greece
• Software Studio: NextGen Gaming
• RTP: 95.3%
• Volatility: High
• Bonus Rounds: Battle Feature Free Games
• How to Trigger Bonus Round: Land 3 or More Scatters

300 Shields draws inspiration from ancient Sparta, a part of Greece known for its military prowess. The action takes place in an open field with a hill topped with temple buildings in the distance.

A rather dramatic soundtrack consisting of drum beats increases the tension and makes the slot more exciting to play. Overall, NextGen Gaming has done a good job of representing Sparta and the exceptional power of its army.

Full Rules & Information About the 300 Shields Online Slot

300 Shields uses a standard 5×3 grid and has 25 paylines in total. You get to decide how many paylines are covered by your bet and can pick any number from 1-25.

To win, you need to line up three to five identical symbols on a payline that’s included in your bet. These symbols need to be on adjacent reels, starting with the leftmost one, to count.

Three of the slot’s symbols pay for two or more on an active payline. These are the soldier, the naval ship and the warrior wild. The scatter pays for two or more anywhere on the grid.

300 Shields Symbols & Payouts

There are six low-paying playing card icons (9-A) and four themed symbols. Of these, the soldier and naval ship are the most valuable, paying 250x the amount wagered on each payline for five of a kind on an active payline.

The warrior wild is the most rewarding symbol overall. Fill a payline your bet covers with five wilds and you’ll be paid 1,000x the amount wagered on each payline. This works out at 40x if your bet includes all paylines.

• All symbols: 12
• Highest-Paying Symbol: Warrior Wild
• Wilds: Yes, regular and multiplier
• Paylines Pay: Left to right
• Maximum Win: N/A

300 Shields Bonuses & Features

Land three or more shield scatters and you’ll get to play the Battle Feature Free Games round. This starts with five spins and has a 2x multiplier that applies to all wins involving the warrior wild.

Collect two shields to earn another five spins and increase the warrior wild multiplier to 5x. Reach six collected shields and you’ll be given another five spins; the multiplier for the warrior wild increases to 25x.

If you manage to collect 12 shields, you earn a final batch of five free spins. While using these, the value of the warrior wild multiplier is a huge 300x, giving any wins involving the wild a massive boost.

Similar Games & Best Alternatives

Got an itch to play more Spartan slots? There are lots of options: Shields of Sparta from Pragmatic Play, Fortunes of Sparta from Blueprint Gaming and Book of Thermopylae from Eurasian Gaming are excellent choices.

There’s also the 300 Shields Mighty Ways slot, which builds on the original by offering a host of new features. These include cascades, a Super version of free spins and up to 262,144 ways to win.

Aim for That Elusive 300x Multiplier in 300 Shields

Does the 300 Shields slot sound appealing to you? If it does, join one of the NextGen Gaming casinos we’ve recommended and see for yourself what the slot’s like. Check out the sequel too.

If you’re extra lucky, you might get to play the Battle Feature Free Games round and unlock the 300x multiplier. This can lead to some serious payouts involving the wild, so best of luck trying to get it!