Fantasy strategy fans, get your decks and tactical minds ready. Independent game developer FrontierCraft has officially unveiled its debut title, Kingdoms Assemble—an exciting new strategy game that blends deck-building kingdom management with asynchronous auto-battler combat.

Alongside the announcement, FrontierCraft released a feature-packed announcement trailer showcasing how players will build, optimise, and expand their fantasy realms before testing their creations on the battlefield.

Better yet, you won’t have to wait long to try it out for yourself. A free public playtest kicks off tomorrow, August 20, and runs through August 27 on Steam—and it’s open to everyone with no sign-ups or approvals required!

Card-Based Kingdom Building Meets Auto-Battler Combat

At its core, Kingdoms Assemble bridges two deeply satisfying genres: card-based strategy and asynchronous auto-battlers.

Instead of controlling troops in real-time micro-management, players spend their turn acquiring, placing, and optimising cards that represent buildings, economic structures, defences, and military units. Every card placed influences your kingdom’s synergy, resource management, and combat readiness.

Key features revealed include:

• Deck-Driven Realm Management: Carefully construct your domain card-by-card. Balance resource generation, defensive fortifications, and army recruitment to build a self-sustaining empire.
• Deep Synergies & Optimisation: Every placement matters. Combining specific structures and unit cards creates powerful bonuses, allowing for diverse playstyles and long-term strategic depth.
• Asynchronous Auto-Battling: Once your kingdom is assembled, send your forces into asynchronous combat. You’ll test your domain’s strength against real player builds from around the world without needing to be online at the exact same time.

How to Join the Public Playtest (Aug 20–27)

If you want to be among the first to rule a realm, FrontierCraft is opening the gates to all players on PC:

• Platform: Steam
• Dates: August 20 – August 27
• Access: Open Playtest (Instant access directly via the Steam store page—no key giveaways, beta sign-up forms, or developer approvals required).

Simply head over to Steam starting August 20, hit the “Join the Kingdoms Assemble Playtest” button, download the client, and start building your empire.

Whether you are a fan of strategy simulators, deck-builders, or competitive auto-battlers, Kingdoms Assemble looks to bring a fresh tactical twist to the tabletop-inspired digital genre. Head over to Steam to add it to your wishlist and jump into the playtest this week!

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