RULE THE CITY

// artillery mecha warfare on real city terrain
Walking-warship "crab" mechs fight direct & indirect gunnery duels across real-world elevation. 94 playable theatres built from Copernicus terrain, live weather, and fog-of-war detection. Web review build — shared data feeds the game.

▸ City Atlas — 94 Theatres + 3D Viewer

The theatre picker: 94 real-terrain battlefields — from the Himalayan border gap (5,000 m) and Table Mountain to Wellington's harbour amphitheatre, Gibraltar's strait, Sydney stretched to the Hawkesbury (74 km), and the Neva delta. Hillshaded thumbnails with contour lines, star ratings, relief & water stats. Cycle every map in 3D (orbit, contours, prev/next), then one click opens it in the tactical map.

94 THEATRES 3D CYCLE VIEWER CONTOURS · RATINGS

Tactical Map

The live battle: fog-of-war LOS, gun-range & effective-range rings, fire-analysis dead space, immunity/threat bands, live weather & wind, salvos of real shells in flight, crew voices, an interactive tutorial, and orders by right-click. Opens on the 74 km Sydney XL theatre — pick any of the 94 from the city dropdown or the Atlas.

FOG-OF-WAR · SALVOS DETECTION · IMMUNITY BANDS

Crab Foundry

Rule-the-Waves-style designer. Pick a chassis, allocate per-zone armour, place guns at A/B/X/Y/wing stations with cones of fire, fit modules & fire control, see the immunity zone and derived class — with a live, walking/turning ANIMATED 3D model. 28 prebuilt era-pack blueprints (2025–2055) ready to deploy to battle.

DESIGNER · ANIMATED MODEL CONES OF FIRE · IMMUNITY ZONE

High Command

The strategic layer: prestige/popularity, victory points, THE EIGHT FACTIONS tension, budget, production → roster, a full commander corps with traits/veterancy, a world atlas campaign map (post-apoc theatre, 24 cities), and battle writeback from the tactical map.

VP · WORLD ATLAS COMMANDER CORPS · WRITEBACK

Research / Tech

The stochastic, year-gated tech tree. Fund branches, watch breakthroughs unlock chassis, guns, armour, drones & EW across the 2025–2070 eras — feeding the Foundry.

10 BRANCHES · STOCHASTIC

Artillery Tutorial

Learn the guns: direct/indirect/mortar fire, dead space, defilade, angle-of-fall (deck vs side), immunity zones & dispersion — illustrated cards from real doctrine. (An interactive in-game tutorial also runs from the tactical map.)

LEARN THE GUNS

Field Wiki

The game's canon & systems reference: crab design, damage model, detection, lore primer, a full math reference deriving every live formula, and the tactical doctrine that drives the sim.

CANON · SYSTEMS · MATH

Chassis Gallery

All six crab chassis classes side by side: Recon, Skirmisher, Line, Spider, Siege, Carrier. Narrow ship-like hulls on insectoid legs (bow/stern), scaled by tonnage.

6 CLASSES · 28t → 360t
DATA: Copernicus DEM GLO-30 (terrain) · OpenStreetMap (buildings, ODbL) · Open-Meteo (weather). All map data is the canonical data/<city>.citymap.json.