Rosetta

Rosetta is a library for mod authors. A mod built on it gets a unified onboarding system that shows multi-slide tutorials, step-by-step walkthroughs and tips in place of plain text dumps. Each slide can dim the background and highlight a specific part of the interface, so a player learns where a feature lives. Cards are grouped by category, and the replay screen lets players filter and revisit each kind of card.

Rosetta enqueues and orders the cards, tracks the version of each card and records whether the player has already seen it. A dismissal is kept, so a card acknowledged once stays acknowledged across game sessions. That state is stored with the Minecraft installation, with no cloud or per-server tracking. The mod depends on Fabric API on Fabric, and it is listed for Fabric and NeoForge across 16 release versions, 1.21.1 – 26.3, using Java level 21 for the 1.21.x line and Java level 25 for the 26.x line.

Rosetta runs on the client only. Servers do not need it, and a server without it cannot push messages through it. Three mods already require Rosetta to deliver their content: Drop Highlighter, Build Better and Malt's Wood Paneling. Players who install one of them typically see Rosetta listed as a separate dependency, which is why it can appear unexpectedly.