Shadowstone is a 1-4 player tactics game where players must master strategic positioning and powerful hero synergies to survive against the unrelenting horrors of the Sunderlands. Survival hinges on players deploying each hero’s unique abilities, mastering powerful party compositions, and adapting their strategies every run.

Built for both solo play and cooperative online multiplayer, a run of Shadowstone starts with players selecting up to 4 heroes to face the ruins’ horrors and fight their way from the depths. Each attempt presents a new challenge with an endless array of randomized rooms and monsters. Players must find powerful synergies across heroes and smartly navigate each battlefield to escape as a team.

Shadowstone takes place in the shadowstone-infested ruins of the Sunderlands, the fantastical animal world introduced in Secret Door’s Sunderfolk. Shadowstone is a standalone experience from Sunderfolk that requires no experience with its campaign. Fans will recognize some returning heroes, including the hulking Berserker and chaotic Pyromancer, alongside new ones, such as the mystical Witch.

“Shadowstone is a natural next step for our team after Sunderfolk,” said Chris Sigaty, studio head of Secret Door. “Inspired by some of our favorite roguelikes, the world and characters of the Sunderlands are back, but in a more dangerous, more challenging, and even more engaging strategic experience.”

“The team at Secret Door continues to innovate with games that bring people together in positive ways,” said Mike Morhaime, CEO and cofounder of Dreamhaven. “Shadowstone reflects that commitment by expanding the beloved Sunderfolk universe, and in a way that allows players to group up or take on this challenging adventure solo.”

Key Features:

• Master Tactical Gameplay: Navigate each battlefield with deliberate positioning in the turn-based tactical gameplay of Shadowstone. Achieve victory by using each hero's unique skills, such as duplicating items as the Witch or charging as the Berserker to displace enemies into dangerous lava.
• Endless Combinations to Play: Each attempt to escape the shadowstone-infested ruins presents a new nightmare with an endless array of randomized rooms and monsters. Every run requires its own strategy based on a constantly evolving pool of skill cards, versatile equipment, and adaptive powerups.
• Powerful Hero Synergies: Build powerful synergies by upgrading and selecting complementary spells across heroes. Execute complex multi-hero ability combinations to devastate enemy monsters.
• 1-4 Player Co-op: Take command of multiple heroes solo, or band together with up to four friends in online multiplayer. Mastering the strengths and weaknesses of different party compositions is essential to survive against the horrors shrouded in shadowstone power.

Shadowstone is coming to Steam Early Access in 2026 for $14.99.