Dear Strategists and Rail Masters,
The long-anticipated sequel to the creative tower defense title Loopstructor has arrived.
Rail Defence: Eldritch Siege is officially unveiled, and its Steam store page is now live.
Building on the original’s signature Loop-based Tower Defense mechanics, Rail Defence: Eldritch Siege pushes the concept further than ever before. Step into a mysterious steampunk world warped by the influence of hidden Rail Gods, design rail networks, deploy and upgrade unique Battle Trains, and harness new systems such as Rail Enchantments to transform your mobile fortresses into devastating engines of defense. Every decision matters, and every move could mean survival — or collapse.
The core elements that made the series highly replayable remain, now expanded with deeper customization and progression. Unlock diverse trains, unique bases, and powerful relics to craft your own tactical builds, then hold the line against endless waves of ancient nightmares on a battlefield that is always shifting.
Want to experience it firsthand? Save the dates:
January 30, 2026 – Limited-time Public Playtest begins. Be among the first to play and help shape the game with your feedback.
March 2026: The game's free playable Demo will officially launch! You'll be able to dive into the early content without barriers and enjoy the thrill of rail planning and fleet assembly.
Add Rail Defence: Eldritch Siege to your Steam Wishlist to stay updated and be notified when the playtest goes live. The rails are your final line of defense against the unknown.
We also invite you to join our Discord community to share ideas, feedback, and suggestions with the team:
Sincerely,
Pone Games