Indie developer WDR Studios, publisher Digital Pajamas, and nerdcore music duo JT Music have announced that Terrible Lizards — a first-person horror parkour game set inside a Route 66 dinosaur attraction — will launch October 29, 2026 on PC and Xbox, with day-one availability on Xbox Game Pass.

Terrible Lizards drops players into Dalton’s Dinos, a roadside dinosaur park that’s disturbingly empty when they arrive. A search for the missing owner leads underground, where the animatronic attractions have given way to actual, very-much-alive predators. The gameplay revolves around fast-paced movement — running, jumping, sliding, climbing, and wall-running — to stay ahead of terrifyingly mutated dinosaurs, mad scientists, and possessed puppets lurking through the caverns beneath the park. Think FNAF meets parkour, with a Route 66 gothic atmosphere soaked in JT Music’s original score.

Voice talent includes Kellen Goff (Five Nights at Freddy’s, My Hero Academia), Amanda Hufford (Date Everything!), and MatPat of The Game Theorists. WDR Studios was founded by the creators of JT Music, who bring an audience of millions from YouTube’s gaming music space to the project. Digital Pajamas publishes with a developer-first philosophy, having shipped more than 80 titles across all major platforms.

A demo is expected in September ahead of the October 29 launch. Terrible Lizards is available to wishlist now on Steam.