Description
Project Inception
Project Inception is a Fabric mod that lets you play a fully-featured Minecraft game...inside Minecraft!
v1.3.2+beta.1 is out! Fixes a bunch of bugs with Linux and Java 9+. Report any issues to the tracker please.

Project Inception requires Fabric Loader and Fabric API.
There are currently no plans to port this to Forge, but anyone can try doing so under the license.
Getting Started
To get started with Inception, you'll need to craft a few Blocks of Minecraft:


Place some Blocks of Minecraft, facing the same direction, in a wall formation. Then, right-click on a one of these blocks with an empty hand to activate an "inner" Minecraft game.


After a while, this screen should display a standard Minecraft loading screen. You now have Minecraft running inside of Minecraft!

To interact with the "inner" Minecraft game, you'll need an Inception Interface:

Right-click the screen with an Inception Interface, and your keyboard and mouse input will be sent to the inner Minecraft game.

Depending on your fps, this input might be a little laggy, but should still be playable.
To stop sending input to the inner Minecraft game, press F12 (keybind configurable under the "Project Inception" category).
Enter the Taterwebz
With the power of potatos, you've found a way to connect to the magic of the "Internet":

Just like Blocks of Minecraft, build a wall of Taterwebz Blocks and right-click when an empty hand to form a display. Use the Inception Interface to capture input.


Note that currently browsers are completely client-side, meaning that any browser state will only exist locally, and will not be sent to other players.
Browser sync will be coming soon™!
Configuration
To configure Java VM arguments for inner games, display resolution, and other options, install Modmenu and open the config screen.
(You can also edit the config file config/project-inception.cfg
manually.)
Issues
As of right now, things are mostly stable. However,
I cannot make any guarantees that this mod will
work on your computer.
Because this mod essentially runs 2 Minecraft games, you'll probably need
a decent computer to run this mod at a playable fps.
If the mod crashes during the "Project Inception - Downloading/Initializing CEF" phase, please submit a bug report.
Browsers take a while to start for the first time. However, if one doesn't show up at all, try checking the logs from the launcher and/or submit a bug report.
Please, please, do not post issues in the comments.
All issues should be reported on the github using Github Issues.
Before opening an issue, please check the below FAQ for some common answers.
If that didn't help or you want more help, feel free to open an issue.
When opening an issue, please follow the template and include relevant logs in the form of an external pastebin link.
FAQ
Project Inception now works on servers! However both
inception games and browsers are handled client-side.
Sync for browsers will be coming soon™.
Project Inception uses memory-mapped files for
interprocess communication. This means that this mod
WILL NOT work if you happen to run MC from a network drive.
Q: Why is multiplayer disabled in the inception'ed game?
A: Minecraft's authentication system disallows you from
joining two servers at once. This is just a proactive
measure to prevent that from happening, if you are
using the mod on a server.
Q: HALP! My computer crashed with a KERNEL_MODE_HEAP_CORRUPTION
!!!1
A: Try opening your modpack folder and deleting the
projectInception
folder inside of it. You
may have to do this from a Command Prompt or Terminal.
While to the best of my knowledge this issue should have already
been fixed, if it does occur, please report to Github Issues.
Q: Forge support?
A: There are currently no plans to port this to Forge, but anyone can try doing so under the license.
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What means Verified?
-
Compatibility: The mod should be compatible with the latest version of Minecraft and be clearly labeled with its supported versions.
-
Functionality: The mod should work as advertised and not cause any game-breaking bugs or crashes.
-
Security: The mod should not contain any malicious code or attempts to steal personal information.
-
Performance: The mod should not cause a significant decrease in the game's performance, such as by causing lag or reducing frame rates.
-
Originality: The mod should be original and not a copy of someone else's work.
-
Up-to-date: The mod should be regularly updated to fix bugs, improve performance, and maintain compatibility with the latest version of Minecraft.
-
Support: The mod should have an active developer who provides support and troubleshooting assistance to users.
-
License: The mod should be released under a clear and open source license that allows others to use, modify, and redistribute the code.
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Documentation: The mod should come with clear and detailed documentation on how to install and use it.
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How to Install
Download Forge & Java
Download Forge from the offical Site or here. If you dont have Java installed then install it now from here. After Downloading Forge you can run the file with Java.
Prepare
Lounch Minecraft and select your Forge istallation as Version this will create a Folder called Mods.
Add Mods
Type Win+R and type %appdata% and open the .minecraft Folder. There will you find your Folder called Mods. Place all Mods you want to play in this Folder
Enjoy
You are now Ready. Re-start your Game and start Playing.