- TypeScript 85.4%
- Rust 14.6%
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Isekai
Isekai is a lightweight Sky: Children of the Light desktop clock and planner for players who want Sky-time countdowns, local goals, and a quick overlay without relying on browser tabs. It runs locally, stores planner data on your device, and keeps setup simple with no Sky login or cloud account.
Website: https://builtbyshnk.github.io/isekai_skycotl/ Repository: https://github.com/builtbyshnk/isekai_skycotl
Features
- 🪶 Light on your PC - Low CPU and memory use leaves plenty of headroom for Sky.
- ⚡ Blazingly fast Rust core - Native Rust backend keeps timers and overlay updates responsive.
- ⏱️ Sky-time aware countdowns - Tracks recurring Sky events using America/Los_Angeles reset timing.
- 🪟 Always-near overlay - Transparent overlay keeps timers visible with global hotkey toggles.
- 🎯 Local planner tools - Save goals, wishlist progress, and collection plans locally offline.
- 🎨 Flexible themes - Switch between light, dark, and system theme modes easily.
- 🔒 Private by design - Planner data, goals, and settings never leave your device.
- 🛠️ Simple setup - Download, launch, and start tracking Sky timers in minutes.
- 🔄 Auto-update ready - Built-in updater makes installing future releases much simpler.
- 🖥️ Focused desktop experience - Dashboard, calendar, goals, collection, overlay, and settings in one app.
- 🌐 No cloud dependency - Core features run locally without subscriptions or external services.
Product Demo
How It Works
- Download and launch Isekai.
- Open the dashboard to view Sky-time event countdowns and reset-aware timers.
- Enable the overlay if you want timers visible while using other windows.
- Save goals, wishlist progress, and collection plans locally in the planner.
- Enable Discord Rich Presence if you want activity sharing while Sky is running.
No Sky login, no game modification, and no cloud account is required for the basic local workflow.
Downloads
Official release builds are published for:
- Windows: MSI installer
- macOS: DMG disk image
- Linux: AppImage
macOS builds are currently unsigned. After dragging Isekai into Applications, run this once if macOS blocks the app:
sudo xattr -dr com.apple.quarantine /Applications/Isekai.app
Prerequisites
- Microsoft Windows 10 or above, macOS, or Linux
- Sky: Children of the Light
- Discord desktop app, if you want Rich Presence
- Bun, Rust, and Tauri prerequisites if you want to build from source
Build From Source
Install dependencies:
bun install
Build the package for your operating system:
# Windows
bun run tauri build --bundles msi
# macOS Apple Silicon
bun run tauri build --target aarch64-apple-darwin --bundles dmg --no-sign
# Linux
bun run tauri build --bundles appimage
The packaged app will be generated by Tauri inside the Rust target output folder.
Localization
The interface language is persisted per user. English ships as the fallback; partial community translations are supported. See the localization guide to add a locale.
FAQ
Is Isekai official?
No. Isekai is an unofficial fan-made project. Sky: Children of the Light belongs to thatgamecompany.
Does the app connect to my Sky account?
No. The app does not log in to your Sky account, read account data, or interact with game servers.
Does Isekai modify Sky: Children of the Light?
No. Isekai is not a mod, cheat, injector, or game client tool. It is a separate desktop clock and planner.
Is my data private?
Yes. Planner data, goals, wishlist state, and settings are stored locally on your device.
Does Discord Rich Presence require Discord to be open?
Yes. Discord Rich Presence works through the Discord desktop app, so Discord must be running.
Where can I get support?
Join us on Discord or message us on Telegram for questions, feedback, and release support.
Disclaimer
Isekai is an unofficial community project. It is not created, sponsored, endorsed, or supported by thatgamecompany. Sky: Children of the Light and related marks are trademarks of thatgamecompany.
Author
Created by Shashank Baghel.
Contributors
Contributions, feedback, ideas, and bug reports are welcome. If you contribute, feel free to add your name here in a future pull request.
License
Isekai is licensed under the GNU General Public License v3.0 only. See LICENSE for the full license text.