- Concrete Foundations: Essential for large, durable bases
- Raids Protection: Bots spawn only on visible ground paths
- Crafting Recipe: Requires 100 concrete blocks per foundation
- Resource Gathering: Use pumps for chemicals and drills for stone
- Defensive Layers: Create multiple wall layers for better security
Introduction to Base Building
Building a secure and functional base is critical for survival in Scrap Mechanic. Utilizing scrap mechanic blocks effectively allows players to create fortified structures that withstand enemy raids while housing essential crafting stations. The game offers various block types, but the Concrete Foundation is currently the gold standard for creating stable, expansive flooring.
Video Highlights:
- Introduction to new foundation blocks
- Raid spawn mechanics and prevention
- Resource gathering for concrete
- Base layout strategies
Covering an island entirely with blocks prevents farm raids because bots require a visible path to the ground to spawn.
Concrete Foundation Blocks
Concrete Foundations are large, pre-fabricated blocks designed to streamline base construction. Unlike placing hundreds of individual smaller blocks, these foundations cover a massive 10x10 area instantly.
| Block Type | Dimensions | Durability | Crafting Cost |
|---|---|---|---|
| Concrete Foundation | 10x10 (Thick) | 5 | 100 Concrete Blocks |
| Concrete Pillar | Tall/Thin | 5 | Unknown |
| Individual Concrete Block | 1x1 | 1 | 1 Concrete |
One foundation covers 100 grid spaces, significantly reducing the object count compared to traditional building methods.
To craft these foundations, you must first unlock the recipe. This requires delivering Farmers to a trade station. Once unlocked, the foundation provides a solid, thick platform that can even be lowered slightly into the ground for a flush look.
Resource Preparation Guide
Creating concrete requires gathering three specific resources: Sand, Water, and Chemicals. The process involves converting stone into sand and then mixing it with fluids.
Gather Cracked Stone
Mine stone nodes using drills. A basic mining vehicle with dual drills can harvest stone efficiently.
Produce Sand
Process Cracked Stone in a Refiner. The ratio is favorable, allowing you to generate substantial sand from nodes.
Collect Fluids
Use a water pump for local water sources. Drive to chemical ponds and use a pump to fill chests with chemicals.
Craft Concrete
Combine sand, water, and chemicals in a Craft Bot to produce concrete blocks.
Build Foundations
Craft the foundations using 100 concrete blocks each and place them at your desired location.
Chemicals are often the bottleneck. Plan trips to chemical ponds with large chests to stockpile enough fluid for massive building projects.
Defensive Layout Strategies
Proper placement of scrap mechanic blocks determines your base's survivability. The goal is to force enemies into choke points where defenses are strongest.
The Layered Defense
- Inner Layer: Protect farm plots and crafting bots.
- Outer Layer: A thick perimeter wall to absorb damage.
- Buffer Zone: Open space between layers to spot targets early.
Spawn Prevention
- Full Coverage: Ensure no natural ground is visible inside the base perimeter.
- Elevated Platforms: Building off the ground or on islands creates natural barriers.
- Thick Foundations: Use concrete pads to create an indestructible floor that enemies walk on rather than destroy.
Material Comparison for Defense
| Material | Durability | Cost Efficiency | Best Use Case |
|---|---|---|---|
| Wood | Low | High | Temporary structures |
| Cardboard | Very Low | Very High | Filler/Terrain blocking |
| Metal 1 | Medium | Medium | Inner walls |
| Metal 2 | High | Medium-High | Main perimeter walls |
| Concrete | High | High | Foundations/Bunkers |
Construction Goals
Before starting your mega-base, ensure you have the necessary logistics in place. Moving resources manually is tedious; setting up automation early saves time.
Base Building Checklist:
- Unlock Concrete Foundation recipe at Trader
- Build a dedicated mining vehicle with drills
- Construct chemical and water pumping stations
- Stockpile at least 2,000 Cracked Stone
- Clear and flatten the desired building area
Upgrading your Craft Bot to higher levels increases crafting speed and queue capacity, allowing you to process massive amounts of stone concurrently.
FAQ
Q: Do raids spawn on concrete foundations?
No, enemy raids generally require a path to natural ground to spawn. Covering the ground with foundations or other blocks prevents spawns in that area.
Q: Can concrete foundations be destroyed by enemies?
While they have high durability, they are not invincible. However, enemies typically walk on top of them rather than attacking them, making them excellent flooring.
Q: How do I lower a foundation block?
When placing the foundation, you can drag your mouse downwards to indent it into the ground. This makes the surface flush with the terrain for easier access.
Q: What is the most efficient way to get chemicals?
Drive a truck with a large chest and a pump to a chemical pond. Submerge the pump and chest to fill it rapidly. Avoid roads during transport to prevent ambushes.