How to Get Custom Songs on Project Sekai: Easy Guide

If you have ever stared at the track in Project SEKAI: Colorful Stage! and thought, “I wish I could play a custom chart of my absolute favorite indie VOCALOID track,” you are not alone. Because the official game client has tight security and doesn’t natively support dragging-and-dropping random MP3s into the song select menu, the rhythm game community has engineered brilliant ways to experience custom charts and fan-made tracks.

Whether you want to play community-made charts or try your hand at building your own, here is the complete guide to getting and playing custom songs in Project SEKAI.

The Main Method: Playing Custom Songs via Sonolus

Because modifying the official Project SEKAI app risks account bans and game file corruption, the rhythm gaming community uses Sonolus—a universal audio-game platform. Think of Sonolus as a customizable “engine loader” that can replicate the exact UI, note skins, flick mechanics, and gameplay feel of Project SEKAI while allowing you to play thousands of custom, fan-made, and imported charts.

Step 1: Install Sonolus

1. Head to the official Sonolus website or your mobile device’s app repository/trusted source to download the application.
2. Install the app on your iOS or Android device (iOS users may need to follow specialized installation profiles provided on the official Sonolus site due to app store restrictions).

Step 2: Connect to a Project SEKAI Server

Once Sonolus is installed, you need to point it toward a server that hosts Project SEKAI (often referred to in the community as Sekai Viewer or specific server links managed by custom chart archives):

1. Open Sonolus and go to the Servers tab.
2. Add a community server URL that hosts Project SEKAI custom charts (such as popular community-backed archives containing hundreds of community-made levels).
3. Once connected, the interface will transform to mimic Project SEKAI’s iconic menus, complete with familiar sound effects, judgment lines, and visual feedback.

Step 3: Browse and Play

1. Navigate to the custom song library within the server interface.
2. You can search by song title, producer, difficulty level, or creator.
3. Tap on a song to download its chart data and audio file, select your preferred difficulty (from Easy to Master/Append), and play!

Alternative: Official Custom Charting (“Score Maker”)

If you play on the Japanese (JP) server, Colorful Palette introduced an official feature called Score Maker.

• What it does: It gives players official in-game tools to layout notes, adjust timings, and design custom charts.
• How to use it: Keep an eye on the in-game menu updates to access the Score Maker suite. While you are generally restricted to the library of official tracks licensed within the game, it provides a safe, sandbox environment to invent brutal difficulty spikes or creative note patterns for your favorite SEKAI anthems without leaving the official app.

Want to Make Your Own Custom Charts?

If playing other people’s creations isn’t enough and you want to build a custom chart from scratch, the community relies on dedicated web editors and charting wikis:

1. Use Charting Tools: Community creators use specialized web-based or desktop charting simulators (like Sekai Custom Charts toolsets and community editors) to map out tap, hold, slide, and flick notes to an audio file’s exact BPM.
2. Follow Timing Guides: Dedicated community resources—such as the PJSK Charting Guide wikis—provide comprehensive walkthroughs on handling sync, multi-lane slide arcs, and easing gimmick placements.
3. Publish to Sonolus: Once your chart file is formatted correctly, you can upload it to compatible Sonolus servers so that your friends and other rhythm game enthusiasts can test out your creation.