Oozy Codex
Oozy Codex is a NeoForge expansion for Tensura: Reincarnated that turns skill growth, analysis, research and awakening into connected survival systems.
What it does
Oozy Codex adds 248 native skills that a player acquires through structured Pursuits rather than commands, and it integrates 13 Slimey Legacy skills with save-compatible identities. Skill copying is included, and an Insightful Elder tier sits between Sage and Great Sage, with analysis limited to lower tiers. Five native Ascension abilities carry their own skill icons.
Research happens in a dedicated seven-tab Living Skill Registry covering Skills, Pursuits, Bestiary, Lore, Scripts and Mastery. A five-level Bestiary records vanilla Tensura creatures, and a World Language Tome is also added. Fast Start offers a race-selection path with Insightful Elder starter resistances, but never Predator, and Character Reset clears completed Pursuit state.
The mod requires Tensura: Reincarnated and runs on client and server, so the server and every player need it. It is published for 1.21.1 only, under the MIT License, which is not open source. Its first file dates to 2026-07-26 and its latest, version 2.0.0, to 2026-07-28. The older standalone Slimey Legacy mod should be removed, since two Oozy Codex versions must never be installed at the same time.
Key features
248 native skills
Skills are earned through structured Pursuits, so progress is gained in play instead of through commands.
Living Skill Registry
A seven-tab screen gathers skills, pursuits, bestiary entries, lore, scripts and mastery progress in one place.
Five-level Bestiary
Vanilla Tensura creatures are researched through a five-level bestiary that records each one the player studies.
Fast Start path
A race-selection route starts the player with Insightful Elder resistances, and completed Pursuit state can be cleared by Character Reset.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Great Sage - Tensura Reincarnated Addon is a NeoForge 1.21.1 addon with the same client and server environment, under All rights reserved and not open source. Tensura Race Spawn Settings (TRSS) is also NeoForge 1.21.1 and client and server, but it is released under the GNU General Public License v3.0 or later and is open source. Aura: Skills & Abilities is NeoForge 1.21.1, client and server, under All rights reserved and not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Oozy Codex | NeoForge | 1.21.1 | Client and server | 2026-07-28 |
| Great Sage - Tensura Reincarnated Addon | NeoForge | 1.21.1 | Client and server | 2026-09-29 |
| Tensura Race Spawn Settings (TRSS) | NeoForge | 1.21.1 | Client and server | 2026-06-15 |
| Aura: Skills & Abilities | NeoForge | 1.21.1 | Client and server | 2026-08-05 |
Questions
Does Oozy Codex need Tensura: Reincarnated?
Does the server need Oozy Codex?
Which versions of Oozy Codex are available?
In the catalog
Oozy Codex is one of 7,216 Magic mods on ModsFinder, and one of 2,992 Magic mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Oozy Codex is a progression-rich expansion for Tensura: Reincarnated on Minecraft 1.21.1. It transforms skill growth, analysis, research, awakening, attunement, and ascension into connected survival systems instead of command-only rewards. Remove the old standalone Slimey Legacy mod, and never install two Oozy Codex…
Official listing
- Modrinth page
- modrinth.com/mod/oozy-codex
- Owner
- SlimeyGameModding
- Published
- 2026-07-26
- Updated on Modrinth
- 2026-07-28
- Facts verified
- 2026-10-15