Create: Trial & Error
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.



NOTE: THE PALETTE SWAP HAS BEEN REMOVED FROM THE MOD. The newest version does not have the repalette.
While Create has been updated to 1.21 for some time, there hasn't been much interaction between 1.21's new features and Create... until now! Create: Trial & Error allows for full automation of the Trial Chamber's Vaults through various features.
Key Casts: Both regular Trial and Ominous Keys can now be replicated by creating casts of them. While this process has a high chance of failure, once a cast is made, it can be used to make infinite keys using Tuff and Copper.
Deployers & Vaults: In base game, a Vault cannot be opened unless the player is within a certain distance. This has been changed so that Deployers can open Vaults without a player needing to be nearby, allowing for remote vault automation.
Blank Slate: Vaults can now be reattempted using the new Tabula Rasa item. Applying one to a Vault allows it to be reopened. They can be obtained through Ominous Vaults, as well as duplicated using Mechanical Crafters.
Veridium & Tuff Automation: To facilitate the full automation of Trial Keys, recipes have been added for the automation of Tuff and Veridium, which can both be used to obtain renewable copper.
While the road to automating Trial Chambers is a long one, the end result is a (relatively balanced) infinite source of Diamonds, Heavy Cores, and even Enchanted Golden Apples.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as trialanderror-1.3.2.jar — drop this file into the mods folder
- Download size: 577 KB
- Download link checked 2 Oct 2026 — working
These come from our own check of the pack file, not from the source page.