The campfire is used to cook food and the water purifier will provide you with clean drinking water. To use the campfire, you'll need to gather some raw meat from hunting animals such as deer or wolves. Once you have the meat, place it on the campfire and wait for it to cook.

Chapter 2 - The Map
As you explore the world, you'll come across different locations such as military bases, abandoned towns, and forests. Each location will have different resources and enemies. Use the map to navigate to different locations. The map also shows locations of your base and any enemies nearby.

To make things easier, you can build a motorcycle to travel faster. You'll need to gather additional resources such as engine parts and a gas tank to build the motorcycle. Once built, you can travel to different locations faster and even carry more resources with you.

Chapter 3 - Combat
Zombies are plentiful in the game and you'll need to fight them to survive. Approach a zombie and tap on the attack button to swing your weapon. Be sure to have a weapon equipped before fighting as your fists won't do much damage.

Different weapons have different strengths and weaknesses. Melee weapons are great for close combat but guns are more effective against larger hordes or bosses. Be sure to manage your stamina as swinging weapons will decrease it.

Chapter 4 - Crafting
Crafting is an essential part of the game. You can craft weapons, tools, and even your own base. To craft, open up the crafting menu and select the item you want to craft. You'll need to have the required resources and some items may require a workbench.

As you progress through the game, you'll unlock more items to craft such as armor and advanced weapons. Be sure to find recipes by exploring different locations.

Chapter 5 - Your Base
Your base is where you'll spend most of your time. It's where you'll store resources, craft items, and plan your next move. To build your base, gather resources such as wood and stone to build walls and floors.

As you expand your base, you'll encounter more difficult enemies such as the horde. The horde will attack your base periodically and you'll need to defend it by setting up traps and fortifications. Be sure to also have a stash of food and water as the horde will drain your hunger and thirst meters.

Chapter 6 - Multiplayer
The game also has a multiplayer aspect where you can team up with other players to survive. You can join a clan or create your own. In a clan, you can share resources and work together to take down tougher enemies.

Multiplayer also introduces more competition as you can raid other player's bases for resources. Be sure to have your base fortified and set up traps to deter raiders.

Conclusion
Last Day on Earth: Survival is a game that requires skill, strategy, and a bit of luck. With this walkthrough, you have the knowledge to start surviving in the post-apocalyptic world. Remember to scavenge for resources, craft items and weapons, and defend your base against the horde. Good luck and stay alive!