Town to City Defense Layout — Best Wall Designs & Fortification Guide

Defense is the backbone of survival in Town to City. Without robust fortifications, even the most prosperous colony can fall to raiders, siege engines, or wandering monster hordes within minutes. This guide breaks down every defensive structure available in the game — from humble wooden palisades to reinforced stone bastions — and explains how to layer them into an impenetrable stronghold. Whether you are securing your first logging camp or fortifying a late-game capital, the principles here will keep your settlers safe and your treasury intact.

Wall Types and When to Upgrade

Walls are your primary line of defense. Each tier has a distinct role in the progression curve. Building too high a tier too early drains resources needed for economic growth; building too low leaves you vulnerable during raids. The table below compares every wall type in the game.

Wall Type	Material	HP	Cost	Build Time	Best Use
Wooden Palisade	Timber	800	150 Wood, 50 Labor	2 days	Early game perimeter, temporary outposts
Stone Wall (Basic)	Stone Block	2,500	400 Stone, 120 Labor	5 days	Mid-game main settlement wall
Reinforced Stone	Stone + Iron Banding	4,200	600 Stone, 80 Iron, 200 Labor	8 days	Late game inner keep, vault protection
Fortified Bastion	Stone + Steel Core	6,500	800 Stone, 150 Steel, 300 Labor	12 days	Treasure vault, throne room enclosure
Earthwork Rampart	Compacted Earth + Timber	1,200	200 Earth, 80 Wood, 60 Labor	3 days	Outer perimeter, siege absorption
Iron Gate	Iron	3,000	200 Iron, 80 Labor	3 days	Gatehouse reinforcement, choke points

Pro tip: Wooden Palisades can be upgraded to Stone Wall (Basic) by paying the cost difference, saving 30% of the original timber investment.

Gate Placement Strategy

Gates are the single most vulnerable point in any wall circuit. A poorly placed gate invites disaster — enemies will pathfind directly to it and concentrate fire. Follow these placement rules:

Never face the main gate toward the enemy spawn direction. Use terrain — cliffs, rivers, dense forest — to force attackers around to a defensible approach angle.
Always flank gates with towers on both sides. Overlapping fields of fire from two towers will destroy anything that reaches the gate.
Build an inner gatehouse (double-gate system). If the outer gate falls, enemies enter a killing corridor trapped between the outer and inner gates with no cover.
Sally ports — hidden side gates — are essential. During a siege, a sally port lets your melee units exit to destroy enemy siege engines from behind, then retreat before reinforcements arrive.

Iron Gates should be reserved for the main gatehouse and any choke-point corridors. Using iron on secondary gates is wasteful; reinforced wood or basic stone suffices for side entrances that rarely see combat.

Tower Positioning and Selection

Towers multiply your defensive firepower by granting elevated attack range, line-of-sight bonuses, and specialized damage types. The three tower varieties in Town to City are:

Archer Tower — Quick to build, fires standard arrows. Best for early game and supplementing coverage gaps. Upgrade with fire arrows (coal + oil) for +40% damage vs wooden siege equipment.

Ballista Tower — Slow rate of fire but pierces armor and deals massive single-target damage. Essential against armored knights, trolls, and siege towers. Can be upgraded to Scorpion Bolts for anti-air capability against dragons and wyverns.

Boiling Oil Cauldron — Mounted directly above gates and wall sections. Dumps area-denial damage that persists for 8 seconds. Instantly kills ladder climbers. Costs oil per use, so assign a dedicated oil production line before deploying more than two.

Optimal tower spacing places one tower within overlapping range of its neighbors — roughly every 12-15 wall tiles on flat terrain. On hilly maps, reduce spacing to 8-10 tiles since elevation blocks line of sight more aggressively.

Moats and Terrain Defenses

Moats are force multipliers that don't cost maintenance once dug. A dry moat (3 tiles wide, 2 deep) slows infantry to a crawl and prevents battering rams from reaching walls. A wet moat (requires a water source) adds drowning damage and completely blocks tunnelers. The labor cost is significant — approximately 400 labor-days for a full perimeter — but the return on investment during sieges is unmatched.

Natural terrain should never be wasted. Cliff edges count as impassable wall segments and require zero resources. Rivers act as permanent wet moats. Dense forests outside your walls slow enemy movement and can be set ablaze by fire arrows for area damage. A colony built into a mountain pass needs only two walls — the mountain handles the rest.

Layered Defense Doctrine

The strongest colonies use a layered defense — each layer bleeds the attacker before they reach the next. A complete layered setup has four rings:

Outer Perimeter: Earthwork ramparts, spike pits, and forward watchtowers. Purpose: Alert you early and soften the initial wave.
Outer Wall: Stone wall with archer towers. Purpose: Main engagement line. Holds the majority of your ranged defenders.
Kill Zone / Moat: The space between outer and inner walls. Traps, oil cauldrons, and overlapping tower fire turn this into a death funnel.
Inner Keep: Reinforced stone bastion with ballista towers. Purpose: Last stand. Protects your vault, throne room, and critical settlers.

Threat Type	Wall Effectiveness	Tower Effectiveness	Moat Effectiveness	Recommended Layout
Bandit Raiders	High — Wood/Stone stops most	Very High — Archers decimate	Moderate — Slows approach	Single stone wall + corner towers
Siege Engines	Moderate — Trebuchets breach stone	High — Catapults counter-siege	High — Blocks battering rams	Double wall + moat + counter-siege towers
Tunnelers	Low — Bypass walls entirely	Low — No line of sight	Very High — Floods tunnels	Deep moat + inner patrol paths
Monster Horde	Very High — HP pool absorbs	High — AoE ballista towers	Moderate — Large creatures ford	Reinforced stone + fire towers + spike pits
Dragon/Wyvern	Low — Bypasses ground walls	High — Scorpion bolts vs air	None — Flies over	Anti-air ballista towers on elevated platforms
Night Assassins	Moderate — Can climb wood	Very High — Watchtowers detect stealth	Low — Swim silently	Stone walls + overlapping torch towers

FAQ

When should I upgrade from wood to stone walls?

Upgrade after establishing steady stone production — typically around 25-30 settlers and a tier-2 quarry. Wood palisades hold fine against early wolf packs and bandit scouts (days 1-20). The first siege event triggers around day 30 on standard difficulty, which is your deadline for having at least a stone-walled perimeter on the primary approach.

Do walls need continuous coverage or can I leave gaps at cliffs?

Cliffs and deep water count as natural barriers — enemies cannot path through them. You can safely leave these segments unwalled. However, check the cliff edges carefully: any tile that shows a slope indicator can be climbed. True cliffs are completely vertical and marked with a darker rock texture on the minimap.

What is the best defense against late-game dragon attacks?

Dragons bypass ground walls entirely, so your defense must be vertical. Build Ballista Towers upgraded with Scorpion Bolts on elevated platforms (at least +3 height tiles). Position them centrally so their range bubbles cover the entire colony. Supplement with fire-resistant roof tiles on critical buildings (stone roofing upgrade). A dragon raid without scorpion coverage will burn 40-60% of a wooden colony in one pass.

Last updated: June 2026. Based on Town to City version 2.4 gameplay data. Wall HP values verified against latest patch notes.