Revenge of the Firstborn is a new retro-inspired RPG from developer Sawtooth Games, previously announced for Steam. The game uses the Dungeons & Dragons 3.5 SRD ruleset and is now playable thanks to a new demo releasing on April 2nd, 2026.

In the demo, players will explore an expansive outdoor area, complete with a river and lake to swim in and mountains to climb. Delve deep into a dark, dangerous dungeon in search of the vampire while fighting enemies, dodging traps, and lighting a way through the darkness to slay this powerful foe and claim the lore awaiting them.

In a press statement, Sawtooth Games said. “Revenge of the Firstborn is a story-rich RPG based on the classic 3.5 SRD ruleset that blends narrative-driven exploration with strategic combat and deep party customization. Set in a world shaped by ancient curses and forgotten histories, players will uncover hidden truths while forging their path through danger and mystery.”

Key features in the Revenge of the Firstborn demo:

A large, explorable outdoor environment, including rivers and lakes that can be swum across, and mountains that can be climbed

A dangerous dungeon crawl, where players must outmaneuver and confront the vampire guarding the ancient documents

A unique boss encounter exclusive to the demo

Core gameplay systems, including dialogue, combat, party creation, and progression