---
product_id: 629449005
title: "Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles"
brand: "thames & kosmos"
price: "₩108354"
currency: KRW
in_stock: true
reviews_count: 11
category: "Thames & Kosmos"
url: https://www.desertcart.kr/products/629449005-thames-and-kosmos-catapult-engineering-kit-build-6-medieval-machines
store_origin: KR
region: South Korea
---

# 32-page illustrated STEM manual Builds 6 medieval siege machines Safe foam balls & soft-tipped projectiles Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles

**Brand:** thames & kosmos
**Price:** ₩108354
**Availability:** ✅ In Stock

## Summary

> ⚙️ Launch Your Child’s Imagination into Medieval Mastery!

## Quick Answers

- **What is this?** Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles by thames & kosmos
- **How much does it cost?** ₩108354 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/629449005-thames-and-kosmos-catapult-engineering-kit-build-6-medieval-machines)

## Best For

- thames & kosmos enthusiasts

## Why This Product

- Trusted thames & kosmos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Kid-Friendly Play:** Soft foam ammo and secure launchers ensure worry-free, indoor/outdoor play under adult supervision.
- • **Step-by-Step STEM Learning:** Follow a vibrant 32-page manual that makes complex physics concepts like force and trajectory easy and fun.
- • **Master Medieval Engineering:** Assemble 6 authentic siege machines including catapult, trebuchet, and ballista for hands-on mechanical physics.
- • **Bonus Creative Castle & Targets:** Transform the box into a colorable castle and test your accuracy with included cardboard targets for immersive play.
- • **Boost Critical Thinking & Dexterity:** Perfect for curious kids 8+, this kit sharpens engineering skills, creativity, and problem-solving through engaging construction.

## Overview

The Thames & Kosmos Catapult Engineering Kit lets kids aged 8+ build six realistic medieval siege machines, combining hands-on STEM learning with safe, soft-tipped projectiles. Featuring a detailed 32-page illustrated manual, this kit teaches mechanical physics concepts like force and trajectory while encouraging creativity and critical thinking. With bonus castle and target blocks, it offers immersive play that’s both educational and fun.

## Description

From the manufacturer

Review: Good quality and fun - This is fantastic! My 11 year old built the crossbow and has had loads of fun with it- it comes with two “arrows” which have firm foam on the end (great for shooting at balloons and cans!). Item is age appropriate and not too difficult to assemble (although not easy - kept her busy for long enough to be engaging but not to hard that she lost interest). If you have a child who likes Lego and building other things this is a great option.
Review: Grandson loved this - Bought this for my grandson he loved it

## Features

- Warning:Not suitable for children under 8 years. For use under adult supervision
- BUILD 6 MEDIEVAL SIEGE MACHINES: Assemble six working models including a catapult, trebuchet, ballista, crossbow, and more. Dive into the world of medieval warfare with hands-on building fun.
- INCLUDES 32-PAGE ILLUSTRATED MANUAL: Easy-to-follow, full-color instructions guide kids step by step while introducing key physics concepts like force, motion, trajectory, and energy.
- DESIGNED WITH SAFETY IN MIND: Features soft foam balls and foam-tipped projectiles. Only the included launchers and ammo are compatible, ensuring safe, kid-friendly play every time.
- BONUS CASTLE & TARGET BLOCKS: The box transforms into a colorable castle for imaginative play, and cardboard targets let kids test their aim and accuracy with their finished launchers.
- STEM LEARNING MADE FUN: Encourage critical thinking, engineering skills, and creativity through engaging construction and play. Perfect for curious kids who love to build, explore, and experiment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRGN5XDQ |
| Age Range Description | Kid |
| Age range (description) | Kid |
| Best Sellers Rank | 19,934 in Toys & Games ( See Top 100 in Toys & Games ) 210 in Educational Science Kits |
| Brand | Thames & Kosmos |
| Brand Name | Thames & Kosmos |
| Country Of Origin | Taiwan |
| Customer Reviews | 4.4 out of 5 stars 113 Reviews |
| Educational Objective | Construction Skills, Creative Skills, Critical Thinking, Dexterity Skills, STEM |
| Global Trade Identification Number | 00814743018709 |
| Included Components | 2 Soft-tipped Darts, Foam Balls, Plastic building parts |
| Is Assembly Required | Yes |
| Item Dimensions | 25.4 x 4.3 x 27.9 centimetres |
| Item Type Name | Physics Experiment Kit |
| Item Weight | 408 Grams |
| Item dimensions L x W x H | 25.4 x 4.3 x 27.9 centimetres |
| Item weight | 408 Grams |
| Manufacturer | Thames & Kosmos |
| Manufacturer Part Number | 550056 |
| Material Type | Plastic |
| Maximum Age Recommendation | 999.0 |
| Minimum Age Recommendation | 96.0 |
| Model Number | 550056 |
| Number of Items | 1 |
| Number of Packs | 6 |
| Set Name | 6 |
| Size | Medium |
| Theme | Physics |
| UPC | 814743018709 |
| Unit Count | 1.0 count |

## Product Details

- **Age range (description):** Kid
- **Brand:** Thames & Kosmos
- **Item dimensions L x W x H:** 25.4 x 4.3 x 27.9 centimetres
- **Size:** Medium
- **Theme:** Physics

## Images

![Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles - Image 1](https://m.media-amazon.com/images/I/71JggPBxdQL.jpg)
![Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles - Image 2](https://m.media-amazon.com/images/I/71Bvd6Id6FL.jpg)
![Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles - Image 3](https://m.media-amazon.com/images/I/71dfidSheAL.jpg)
![Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles - Image 4](https://m.media-amazon.com/images/I/61RNBjRw5PL.jpg)
![Thames & Kosmos Catapult Engineering Kit | Build 6 Medieval Machines | STEM Toy for Kids Age 8+ | Learn Mechanical Physics & Engineering | Safe Foam Balls & Soft-Tipped Projectiles - Image 5](https://m.media-amazon.com/images/I/71AWWLKn2NL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality and fun
*by K***R on 29 July 2026*

This is fantastic! My 11 year old built the crossbow and has had loads of fun with it- it comes with two “arrows” which have firm foam on the end (great for shooting at balloons and cans!). Item is age appropriate and not too difficult to assemble (although not easy - kept her busy for long enough to be engaging but not to hard that she lost interest). If you have a child who likes Lego and building other things this is a great option.

### ⭐⭐⭐⭐⭐ Grandson loved this
*by L***D on 27 December 2025*

Bought this for my grandson he loved it

### ⭐⭐⭐⭐⭐ Excellent
*by H***A on 27 November 2025*

Very good

## Frequently Bought Together

- Thames & Kosmos Catapult Engineering STEM Maker Kit, Build 6 Models of Unique Medieval Machines, Explore Mechanical Physics, Includes Safe Foam Balls & Soft-Tipped Projectiles, Suitable for Ages 8+
- Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines
- Thames & Kosmos Structural Engineering: Bridges & Skyscrapers | Science & Engineering Kit | Build 20 Models | Learn about Force, Load, Compression, Tension | Parents' Choice Gold Award Winner, Blue

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-08-15*