X-Demon by Evoplay is a fantasy-themed slot on a 5x3 reel layout with left-to-right paylines. The game uses coloured demon head symbols, gem-style low symbols, and a Bonus shield symbol that can trigger the Free Spins feature. The interface shown in demo mode includes bet controls, a balance display, and a spin button, allowing players to play for free and practice before playing for real money.
The main special feature is Wild Attack, where a Wild on the top row can convert the Demon symbol directly beneath it into a Wild for the round. During Free Spins, 3, 4, or 5 Bonus symbols award 8, 10, or 12 spins, and additional Wild interactions can extend the feature. Wins are paid only for the highest combination on each line, based on the symbol value and the stake.
The visual presentation places the action inside a demon temple setting with glowing runes, stone figures, and animated win effects. The paytable also lists the payout values for the high-paying demon symbols and explains the feature rules, including the bonus trigger conditions and payout policy.