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The Mohist

Demo available

BT StudioDiscovered Oct 22, 2026

About the game

Hold the walls as a Mohist engineer. Build ramparts, rig machines, dam a river and break it, and set the field ablaze to stop thousands of ladders, rams and siege towers across 50 levels and 30 historic battlefields. Lose, earn Merit, upgrade, try again.

Original Steam description

Defend, never conquer

In China's Warring States era, the Mohists were famous for one thing: holding cities that should have fallen. Lead a band of Mohist engineers and plan every defense with limited materials — where the walls go, where the ditches are dug, which machines guard which gate, and how your squads are split. Then the horns sound, and you find out whether the line holds.

Features

  • A 50-level campaign in five volumes — Counter the twelve siege methods from the Mozi one at a time: scaling ladders, battering rams, tunnels, siege towers… until they all come at once. In Volume III, half the battles have no city at all — fight in the open with hills, forests and river fords.
  • 30 historic battlefields — Hangu Pass, Jianmen Pass, Tongguan, Xiangyang, Changping, Red Cliffs, Fei River, plus Constantinople, Masada, Rhodes, Alesia and Osaka's Sanada-maru.
  • Flood and fire — Dam a river, then break it and wash a whole column away. Set fires with the wind; villages and camps burn.
  • 9 Mohist machines — Swivel crossbows, counterweight throwers, portcullises, rolling logs, caltrops, winch blades, hidden heavy crossbows and more, each with its own upgrade tree.
  • 17 fortifications, 5 troop types — Earth and stone walls, sally ports, arrow towers, ballistae, moats, dams, cheval de frise, pit traps and fire-oil jars. Command shieldmen, spearmen, archers, cavalry and Mohists squad by squad.
  • Over a thousand enemies on the field — Levies, shield walls, heavy infantry, wolf riders, ditch fillers, ladder teams, rams, trebuchets, siege towers and enemy generals. The enemy reads the terrain and changes its plan.
  • Lose, learn, come back stronger — Even defeats earn Merit. Spend it across 35 upgrade trees, including 4 doctrine specializations.
  • Four seasons and random terrain — Seasons change vegetation and ground; Chaos Challenge generates a new map every run.
  • Three-star ratings and battle reports — Kills, best kill streak and objective integrity. Go for the perfect defense.

Demo and release information

A Steam demo was found at the latest check. Confirm it is still available in your region on Steam before downloading.

Steam demo, playtest and Early Access: what is the difference?

Information & artwork: Steam · Last checked UTC