Hydraulic Empire

Hydraulic Empire is a tower defense game with RPG elements. You place towers strategically, account for interactions between mobs and take part in battles through a hero-builder who levels up as you play. The game includes over 20 levels, 10 kinds of mobs and 10 towers, with about 15 hours of gameplay at launch.

Story

You play as the Keeper, the First Lieutenant General of the Great Mech Army, who protects the dreams of many. After the Keeper’s own people turn against them for reasons they do not yet understand, a new enemy threatens the land won through fearsome attrition. The Keeper calls for aid and fights to preserve the hope of peace.

Mob interactions

Mob interactions are central to how you plan your defenses. They happen throughout each level and can change where and how you choose to build. The outcomes depend on which mobs die and in what order: most mobs interact with at least two or three others, some interactions unlock further interactions, and others prevent them.

Levels and progression

The game has 21 levels at launch, with more intended to be added over time. Its persistent upgrades and RPG elements support progression, including a builder who levels up as you play. Different mob interactions give levels replay value.