How to Play Deltarune in Fullscreen

Many players diving into Toby Fox’s Deltarune for the first time encounter an unexpected issue—the game launches in a small, minimized window with no obvious way to switch to fullscreen mode. Unlike most PC games, Deltarune doesn’t allow immediate access to fullscreen settings from the start menu. However, there’s a simple solution—you just need to progress a little further into the game first.
This guide will walk you through exactly how to enable fullscreen mode in Deltarune, ensuring you enjoy the game’s charming visuals and engaging gameplay without distractions.

Why Can’t You Enable Fullscreen Immediately?

Unlike traditional games, Deltarune restricts access to certain settings until players complete the introductory segment. This design choice may seem unusual, but it ensures players experience the opening sequences as intended before adjusting preferences.

How Far Do You Need to Progress?

To unlock the full configuration menu (including the fullscreen option), you must play through the first 10-15 minutes of the game. Here’s what you’ll need to do:

Start in Your Bedroom – The game begins with the protagonist waking up.

Head to School – Follow the story prompts until you reach the classroom.

Meet Susie – After a few cutscenes, you’ll team up with Susie, a key character.

Enter the Dark World – Once you and Susie venture into the mysterious Dark World, the full menu unlocks.

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How to Enable Fullscreen in Deltarune

Once you’ve reached the Dark World, follow these steps to switch to fullscreen mode:

Step 1: Open the Main Menu

• PC: Press CTRL
• Xbox Controller: Press Y
• PlayStation Controller: Press Triangle
• Nintendo Switch: Press X

Step 2: Navigate to the Config Menu

Scroll to the far-right option labeled "Config"—this is where you’ll find display and gameplay settings.

Step 3: Toggle Fullscreen Mode

Inside the Config menu, you’ll see several options, including:

• Master Volume
• Controls
• Simplify VFX
• Fullscreen (Toggle ON/OFF)
• Auto-Run
• Return to Title

Select Fullscreen and enable it. Exit the menu, and the game will now display in fullscreen mode.

Additional Tips for Deltarune Players

While adjusting your display settings, take advantage of the pause menu to:

• Check party stats (HP, armor, weapons)
• Review key items and spells
• Adjust audio and control settings for optimal gameplay

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