Deer and Boy Full Game Walkthrough: Complete Guide and Puzzle Solutions

When I first launched Deer and Boy, I expected another short indie platformer with pretty visuals and a touching soundtrack. Instead, I found myself completely absorbed in a quiet adventure that tells its story without endless dialogue or exposition. The relationship between the runaway child and the little deer slowly becomes the emotional center of the experience, and almost every puzzle reinforces that connection.

If you’re stuck on a puzzle or simply want a smoother playthrough, this complete walkthrough covers every major chapter, explains the companion mechanics, and shares a few tricks that made my own journey much easier.

Understanding the Core Gameplay

Unlike many cinematic platformers, Deer and Boy constantly changes its mechanics as your companion grows.

At first, the deer is helpless and depends entirely on the boy. Later it becomes an active partner, and by the end of the story it transforms into something almost mythical.

That evolution isn’t just visual—it completely changes how puzzles work.

Main Gameplay Features

• Environmental puzzles with physics interactions
• Companion-based mechanics
• Platforming challenges
• Light stealth elements
• Storytelling without dialogue
• Exploration with hidden secrets

One thing I appreciated is that the game rarely explains anything directly. Instead, the environment quietly teaches you what to do through animation and level design.

Companion Growth System

The deer develops through three major stages during the adventure.

Each transformation makes previous puzzle ideas feel fresh again rather than repetitive.

Chapter 1 – Leaving Home

The opening sequence serves as a movement tutorial while introducing the game’s emotional atmosphere.

Simply keep moving right through the countryside until reaching the first wooden fence.

Nearby you’ll find a movable crate.

Pull it backward, climb on top, and jump over the obstacle.

The controls are intentionally simple during this opening section, allowing players to focus on the cinematic presentation instead of difficult platforming.

Finding the Baby Deer

Soon after entering the forest, you’ll discover a weak little fawn lying alone.

To help it recover:

• Collect glowing berries nearby
• Gather dry branches
• Build a fire
• Feed the fawn

Once finished, your companion begins following you everywhere.

This scene remains one of my favorite moments because it establishes the emotional bond without a single spoken word.

Solving the First Fence Puzzle

The next obstacle introduces companion commands.

The boy climbs over using broken planks while the baby deer squeezes underneath through a small hole.

If the fawn refuses to move, simply step away from the opening and call again.

The pathfinding usually fixes itself instantly.

Chapter 2 – Into the Wild

The world becomes much larger here, introducing wildlife and environmental hazards.

Since the deer is still tiny, you’ll often carry it while climbing or jumping.

This creates an interesting balance between mobility and protection.

Wild Hog Puzzle Solution

Eventually a large wild hog blocks the only path forward.

Trying to run past it never works.

Instead:

1. Leave the fawn in a safe location.
2. Climb onto the upper cliff.
3. Locate the hanging vine above the hog.
4. Cut the vine.
5. Watch the heavy log crash down.

The frightened animal immediately runs away, opening the route ahead.

It feels satisfying because the game encourages observation rather than combat.

River Crossing Puzzle

The raft section confused me more than any earlier puzzle.

Here’s the simplest solution:

• Place the fawn onto the raft.
• Climb the scaffolding.
• Pull the lever.
• Keep holding it.
• Command the fawn onto the center pressure plate.
• Cross using the newly lowered bridge.

Timing is more important than speed here.

If something goes wrong, reset and repeat the sequence slowly.

Chapter 3 – Entering the Corrupted Valley

The atmosphere changes dramatically.

Dark purple corruption spreads across the environment while strange shadow creatures begin appearing in the background.

This section introduces one of the game’s few genuine fail states.

Touching corrupted ground slows movement significantly, and remaining inside it for too long results in death.

The safest strategy is to carefully plan every jump before moving.

Elevator Tower Puzzle Explained

Inside the ruined tower you’ll encounter a surprisingly clever physics puzzle.

The correct order is:

1. Leave the fawn on the lower switch.
2. Climb to the crank.
3. Raise the platform.
4. Release the mechanism.
5. Quickly descend.
6. Push the stone block onto the ledge.

Afterward the block becomes a stepping platform allowing access to the upper exit.

Meanwhile your companion automatically climbs the internal staircase to reunite with you.

Chapter 4 – Growing Together

Time passes, and the little deer finally matures.

It can now leap independently and actively assist platforming.

This changes nearly every puzzle that follows.

Instead of carrying your companion, you’re now working together as equals.

Using the Deer as a Platform

Many cliffs are impossible to reach alone.

Stand near the wall and command the deer into position.

The boy automatically steps onto its back before jumping upward.

After reaching the top, interact with nearby mechanisms to create paths for your companion.

It’s a simple mechanic, but the animation makes the cooperation feel incredibly natural.

Wolves Chase Sequence

Without question, this is one of the most exciting moments in the game.

A pack of wolves suddenly appears, forcing both characters into a full-speed escape.

Keep sprinting.

Don’t stop.

Jump over every fallen log as early as possible.

Near the end you’ll reach an enormous gap.

Instead of jumping yourself, press the interaction button at the edge.

The boy seamlessly lands on the deer’s back before both characters clear the canyon in one spectacular leap.

It’s an unforgettable cinematic moment.

Chapter 5 – The Power of Light

The final act introduces the deer’s ultimate transformation.

Now a magnificent glowing stag, it gains supernatural abilities capable of purifying corruption itself.

Holding the companion command near purple corruption causes brilliant white light to spread outward, destroying the infected growth and revealing hidden passages.

This mechanic gives the finale an almost spiritual atmosphere compared to the grounded opening chapters.

Mirror Temple Puzzle

The ancient temple contains the most elaborate puzzle in the entire game.

The objective is simple:

The stag generates a powerful beam of light.

The boy rotates massive stone mirrors positioned around the chamber.

Correctly aligning every mirror directs the beam into crystal receptors that unlock the temple doors.

If you’re stuck, rotate mirrors one at a time while following the beam’s reflection instead of randomly adjusting everything.

The solution becomes much easier when approached methodically.

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Helpful Tips Before Finishing the Game

• Always explore side paths. Hidden murals provide additional story details that explain the mysterious world.
• Stay close to your companion. Some scripted events trigger only when both characters are nearby.
• Take your time. Many platforming sections reward patience over quick reactions.
• Watch the lighting. Interactive objects are almost always highlighted through subtle visual design.

Final Thoughts

After finishing Deer and Boy, I walked away feeling surprisingly emotional. Few games manage to build such a believable relationship without dialogue, and even fewer integrate that relationship directly into puzzle design.

The gameplay itself isn’t especially difficult, but the evolving companion mechanics keep every chapter interesting. From carrying a frightened baby fawn through dangerous forests to riding beside a glowing stag across impossible landscapes, the adventure constantly feels fresh.

If you enjoy atmospheric indie games like Inside, Planet of Lana, or Brothers: A Tale of Two Sons, this is absolutely worth experiencing. And if you get stuck along the way, the solutions above should help you enjoy the journey without missing its most memorable moments.

DEER & BOY – Full Demo