Mutant Abyss — Play Free at Rune Riches

Step into Mutant Abyss, the spooky arcade games from KA Gaming that brings a soundtrack and colour palette that flow together cleanly.

Under the hood, Mutant Abyss runs at 96% RTP, right where most major studios pitch their releases. The pacing comes from 5/10 variance — neither too tight nor too swingy, comfortable for most bankrolls. With — paylines, the math is generous enough to feel without being chaotic..

KA Gaming have built a reputation for strong bonus design, and Mutant Abyss sits comfortably in that lineage. Mobile and desktop versions feel effectively identical — touch targets are sized for thumbs, animations remain smooth on mid-range hardware, and the audio mix scales down gracefully without headphones.

Ready to try Mutant Abyss? Rune Riches has it free-to-play with sweepstakes prizes on Sweep Coins. One click and you’re in.