Last updated 24 October 2026
Open-source licences
In short
TierNation is built on open-source software, and our client mod is itself open source under the Mozilla Public License 2.0. Thank you to everyone who made these.
1. The client mod
The TierNation mod is based on TierTagger version 2.7.0, Copyright (c) 2025 MCTiers, mctiers.com. Both are licensed under the Mozilla Public License 2.0. Files we changed say so in their header.
The mod's full source code is available on request from [email protected], free of charge, for as long as we distribute the mod.
| Software | By | Licence |
|---|---|---|
| TierTagger | uku and netiyiy, MCTiers | MPL-2.0 |
| Fabric Loader and Fabric API | FabricMC | Apache-2.0 |
| ukulib | uku | its own licence (installed separately) |
2. The website and bot
| Software | By | Licence |
|---|---|---|
| Next.js | Vercel | MIT |
| React | Meta Platforms | MIT |
| three.js | the three.js authors | MIT |
| skinview3d | the skinview3d contributors | MIT |
| GSAP | GreenSock (Webflow) | GSAP Standard No-Charge License |
| Tailwind CSS | Tailwind Labs | MIT |
| Prisma | Prisma Data | Apache-2.0 |
| discord.js | the discord.js contributors | Apache-2.0 |
| Node.js | the OpenJS Foundation | MIT and others |
3. Fonts
These fonts are used under the SIL Open Font License 1.1.
| Software | By | Licence |
|---|---|---|
| Playfair Display | Claus Eggers Sørensen | OFL-1.1 |
| Outfit | the Outfit project authors | OFL-1.1 |
| Instrument Serif | the Instrument Serif project authors | OFL-1.1 |
| DM Mono | Colophon Foundry | OFL-1.1 |
4. Licence texts
The full licence texts come with each package's source code, and are available from the links above or on request from [email protected].