Join the alien invaders for their return to Mars, seeking vengeance on the planet that once foiled their plans, in this sci-fi themed 5x3, 20-payline slot. The game features walking wilds that trigger re-spins as they move across the reels, creating dynamic winning opportunities. Landing three scatter symbols initiates the Free Spins round, where walking wilds become enhanced, offering larger multipliers and potentially leading to significant cosmic payouts. Prepare for a high-volatility intergalactic conflict with big win potential.