DELTARUNE on your Mac — 2026.07.31

You copy the app to your Applications folder, launch it, and within minutes you're guiding a party through a dark world that feels familiar yet different. Deltarune is an episodic role-playing game from the creator of Undertale, and it rewards patience and curiosity.

If you liked Undertale's humor and action battles

If you liked Undertale's writing and humor, you'll likely feel at home here. The action-based battles let you fight or spare enemies, and the story unfolds in chapters, so you can pause between sessions without losing momentum.

Why episodic storytelling might disappoint you

If you expect a direct sequel to Undertale, this parallel story may surprise you. Also, if you prefer a complete narrative in one sitting, the episodic release means waiting between chapters.

How it runs on Mac

The game supports both ARM and x86 (64-bit) architectures, and it has been tested on macOS Sequoia on a Mac mini 2024 M4. After copying the app, launch it from Launchpad and you're ready to play.

A story RPG that fits short play sessions on Mac

This game suits Mac users who enjoy story-driven RPGs but don't always have a full evening to sink into a session. Because Deltarune saves progress at the end of each chapter, you can play for thirty minutes, reach a natural stopping point, and pick up again the next day without needing to remember where you were. That makes it a good fit for teachers, commuters, or anyone who shares their Mac with family members.

It also works well for people who appreciate pixel art and atmospheric soundtracks on larger screens. The visuals scale cleanly across MacBook displays and external monitors, and the music stays present without overwhelming dialogue or exploration. If you use an older Intel Mac, the x86 (64-bit) build is there for you. If you have an Apple Silicon machine, the ARM build takes advantage of the architecture.

For fans of Undertale who want to see how Toby Fox develops a parallel storyline, this is the Mac version to keep installed. The episodic format means you can revisit earlier chapters before a new one arrives, which helps with catching details you might have missed.

Starting with chapter 1 as a battle tutorial

Start with chapter 1 and treat it as a tutorial for the battle system. The action-based fights require timing, so spend a few encounters learning when to press the action button and when to defend. You can always spare enemies if you prefer conversation over combat.

• Set aside one uninterrupted hour for the opening chapter. The story hooks you early, and interruptions break the mood.
• If you use multiple macOS user accounts, install the app to your Applications folder first. Each user can then launch it from their own Launchpad without reinstalling.
• Keep the disk image in your Downloads folder until you finish chapter 1. If you ever need to re-copy the app, the image is ready.
• Read the journal or in-game notes if the game offers them. They explain mechanics and hint at story branches.

One thing I tell my game club students: don't look up walkthroughs on your first playthrough. Deltarune rewards exploration and unexpected choices, and the surprises lose their impact if you read about them beforehand.

A Tuesday evening session picking up in chapter 3

It's a Tuesday evening. I've finished grading homework, so I open the MacBook, click the Deltarune icon in Launchpad, and wait for the chapter select screen. I left off near the end of chapter 3, so I choose that save and continue.

Within seconds, I'm back in the dark world. My party walks through a field of glowing crystals. An enemy appears, and the screen shifts to a battle view. I time my attack, then decide to spare the creature instead of fighting. It yields a small item and some dialogue that hints at a side quest.

After the fight, I explore a town area. I talk to every NPC because some give items and others reveal story details. I find a locked door that requires a key from an earlier room, so I backtrack. The game doesn't punish backtracking — it expects it.

Twenty minutes later, I reach a save point and stop. The chapter isn't finished, but the save point holds my progress. I close the laptop and move on with my evening. Tomorrow I'll pick up where I left off, and the world will still be waiting.

• Chapters 1-5 are available now.

• macOS version: not specified by the developer
• Architecture: Apple Silicon (ARM) and Intel (x86, 64-bit)