Castle Collapse Tips: How to Win Every Siege
Castle Collapse is won by knowing what breaks, what falls and what to save. These tips come straight from how the game works — the materials, the weapons, the AI rivals and the star rules.
By the Tressiv Games team · Updated
Know your materials
- Glass is the weakest block in the game and shatters from knocks alone — even falling debris breaks it.
- Wood is the all-rounder: a cannonball snaps it, and a wooden tower falls fast once its supports go.
- Stone is more than twice as tough as wood and heavier too. Don’t waste shots trying to smash it — knock out what it stands on.
- Red TNT barrels explode when they break and damage everything nearby. One good hit on a barrel can do the work of several shots.
Aim low, not high
- The fastest way to drop a castle is to break its supports. A tower with no base falls under its own weight.
- The rival’s crown sits at the top of their castle. Knocking it off isn’t enough — it has to land on the ground — so bringing down the floors under it is usually the surest route.
- You also win when the rival’s castle falls below 30% strength, so every block that breaks or falls counts toward victory.
Cannonball or explosive shell?
- The cannonball is heavy iron: a direct hit does the most damage to the block it strikes. Use it to snap a single key support.
- The explosive shell bursts on impact and damages everything around it. Save it for tight clusters of blocks, glass sections, or a spot next to a TNT barrel.
- Shells are limited in every battle. The Shell Stockpile upgrade adds more.
Use the aim guide
- Drag to aim: the direction sets the angle and the length of your drag sets the power.
- The dotted aim guide shows the exact start of your shot’s path. The Eagle Eye upgrade extends it from 30% of the flight up to 68%.
- If a shot falls short, add power before changing the angle — small changes are easier to judge.
How to beat each AI rival
- Ironclaw (Easy) fires fast, flat shots straight at your front walls. Its shots are the least accurate, so trade hits and aim for its supports.
- Stonewise (Balanced) goes for your foundations and TNT, and it learns a little from each miss. Knock out its supports before it finds its range.
- Destroyer (Hard) studies where every shot lands, corrects its aim and hunts your crown. Strike hard and early — the longer the battle runs, the more accurate it gets.
- All three are computer-controlled opponents, clearly labelled as AI rivals in the game.
Get three stars on every level
- One star for winning.
- One star if your own castle is still at 60% strength or more when you win.
- One star for winning within the level’s par shots — the level card shows the number before you start.
- You can replay any level you’ve reached to improve your stars.
Spend coins on the right upgrades
- Reinforced Walls (+12% block strength per level) helps you keep that 60% star against tougher rivals.
- Heavy Shot (+15% shot damage per level) breaks stone castles in fewer shots, which helps with par.
- Shell Stockpile gives you an extra explosive shell per battle for each level.
- Eagle Eye is the cheapest upgrade and makes every shot easier to line up — a strong first buy.
Bosses and the long campaign
- The campaign has 1,200 levels. Castles grow bigger and rivals get tougher as you go.
- Every 10th level is a boss battle with a larger castle and a stronger rival. Upgrade before you take one on.
- Stuck? Try a Quick Battle or the Daily Siege to earn more coins, then come back.