Codex-Ipsa Launcher
Codex-Ipsa is an experimental Minecraft launcher which supports launching multiple editions of the game -
Java, MinecraftEdu and Xbox 360, with more to come.
The launcher is currently only supported for Windows.
Download
Download the latest stable version here.
[0.4.2 @ 24.01.2026]
There is currently no development version available.
Source code can be found on Github.
Features
List of features as of v0.4.1:
- Easy-to-edit instances
- Automatic updates
- Microsoft log-in
- Create desktop shortcuts
- Game output window (+ now with a kill button!)
- Languages
- Play without internet connection
- Discord Rich-presence
- Easy working with Java installs (Java 8, 17, 21 and 25)
- Custom themes
- All currently archived versions up to the latest one, including historical versions, snapshots, experimental versions and reuploads
- Fixes for old versions, such as:
- Skins and sounds in classic to release 1.5.2
- Skins and sounds for 1.7 and it's snapshots
- 12w18a to 12w21a not being able to download a required server jar
- Connect to servers on Classic and early Alpha (either enter the IP on game launch or do it automatically with instance settings)
- Automatic assets downloading on 1.6+
- Option to always play the latest release or snapshot
- Easy mod management for old versions:
- Built-in mods repository filled with amazing mods (BTA, NFC, Legacy+, and more!)
- Automatic updates for repository mods
- Adding jar mods (Add to minecraft.jar)
- Launching custom minecraft.jar files (Replace minecraft.jar)
- Mod loaders for old and modern versions:
- Easy one-click installation
- Risugami's ModLoader support
- Forge support up to 1.12.2 (with more coming Soon™!)
- Fabric support up to the latest snapshot
- For advanced/more technical users
- Custom asset indexes (from url/local)
- Easily manage Java installation
- Load custom IpsaJSONs (documentation coming Soon™!)
- Only a few versions for now, will add more over time
- All available 1.4.7, 1.5.1 and 1.5.2 versions
- One 1.7.2 and 1.8.9 version
- Uses Xenia emulator
- All versions from the pre-releases up to TU75
- Level saving/loading
- Launch demo or full game
