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300 Shields Extreme by NextGen Gaming is a 5-reel slot built around ancient warfare and Greco-Roman imagery, with shields, helmets, ships, swords, and card symbols set on a parchment-style reel area. The game uses 25 paylines and a high-volatility format, with an RTP of 95.3% and bets from 0.25 to 12.5.
The demo version lets players play for free and try the layout before playing for real money. On-screen features include balance, total bet, win tracking, and a Buy Pass option, alongside themed overlays that point to the game’s bonus structure.
Its main bonus element is Free Games, triggered by scatter symbols and shown with a multi-stage progression. During these rounds, the game displays rising wild multipliers and fight-style screens such as “FIGHT COMPLETE!”, suggesting a stage-based bonus sequence with larger win potential.
