The Rust Bastion Hardcover – August 26, 2025

The Rust BastionA Steampunk Stronghold for 5e AdventuresFrom the creators of The Rust and the Raider comes The Rust Bastion — a complete 120-page expansion that transforms your campaign with a fully customisable steampunk bastion system.Your players gain more than a hideout: they claim a living fortress. A forge of invention, a hub of research, a stronghold of defence. The Bastion is a sky-city enclave or floating fortress that grows alongside your party — upgraded, defended, and personalised through their choices.Inside you’ll find:The Sky Bastion System – rules for acquiring, upgrading, and defending your strongholdAirship Maintenance Cycles & Enhancement Points – manage your vessel’s progress with research, upgrades, diplomacy, and reconnaissance16 Fully-Realised Rooms – from the Steam-works Forge to the Skyward Observatory, each with lore, mechanics, and unique hirelingsEvents & Challenges – sky pirate raids, rust infestations, political intrigue, and crises that make the Bastion part of the storyEnhancements & Defences – construct turrets, elemental reactors, cloaking engines, and more to forge a fortress that is uniquely your ownWith stunning lore and game-ready mechanics, The Rust Bastion deepens the world of The Rust and the Raider, giving Dungeon Masters a flexible toolkit and players a stronghold they will fight to protect.Forge. Defend. Discover. The Bastion is yours. Read more