Original physics puzzle

Castle Crash Forge guide: aim for the structure, not just the target

How aiming and firing works

Open Castle Crash Forge, then drag across the arena to move the aim point. The dotted line is the predicted ballistic path. Release to fire. On desktop you can also press Space or Enter to fire the current trajectory, H for a weak-point hint and R to restart the current level.

The projectile loses height to gravity, so the useful question is not “where is the target?” but “where will the arc intersect the structure?” Lower, flatter shots are better for base supports; higher arcs can reach a core or roof behind a front tower.

Glass, wood, stone and powder kegs

The three construction materials are intentionally different. Glass breaks quickly and is useful for opening a lane. Wood can absorb more impact but is still a good support target. Stone is the toughest material, so repeated direct shots at stone are usually inefficient.

Orange powder kegs are the main shortcut. A destroyed keg damages nearby blocks and may set off a larger collapse. When a keg sits near stone or below a core, test that route before spending several cannonballs on individual blocks.

How support collapse works

Blocks are affected by gravity after the pieces directly beneath them disappear. Unsupported sections fall, take impact damage when they land and can continue breaking. This means one low support can be worth more than a visually tempting roof shot.

• Look for two-block columns carrying a wide roof or core platform.
• Prefer the support that also exposes a powder keg or glass chain behind it.
• After a big collapse, wait for the cannonball and falling blocks to settle before choosing the next line.

How to earn three stars

Each level has a par shot target. Finishing at or under par earns three stars, one shot over par earns two, and a completed level with more shots earns one. The game saves the best star result and score for every level on the current device.

If the first shot barely chips an isolated block, restarting is often better than trying to recover a three-star run. If the opening shot removes a support, hits a keg or exposes multiple cores, continue and let the new geometry guide the next attempt.

A reliable level-solving routine

1. Count the cores. Know how many objectives remain before spending ammo.
2. Scan the bottom two rows. Find supports whose removal affects the largest amount of structure above.
3. Find kegs. An explosion can replace two or three ordinary shots on later stone-heavy levels.
4. Check the arc. Use the dots to verify the cannonball reaches the intended height before releasing.
5. Reassess after every collapse. The best second shot is often completely different from the plan you had before firing the first.

What changes across the 45 levels?

Early levels use short towers and mostly fragile materials so you can learn the trajectory. Later levels add more towers, more cores, taller structures, stronger stone and additional powder kegs. The aim is not simply to make every block tougher: later levels reward finding a chain reaction or a support that removes several pieces at once.

Mobile aiming tips

On a phone, drag slowly near the end of the gesture so the final aim point does not jump. You do not have to start the drag on the cannon; any clear part of the canvas can be used to set the trajectory. If your finger hides the target, use the dotted arc rather than the pointer itself.

What to do when you are stuck

Use the Weak-point hint once to move the aim toward the nearest remaining core. It is not an automatic solution: if the direct line is blocked, use that highlighted direction to identify the support or keg that opens the route. Restarting does not erase your unlocked levels or previous best scores.