The A/O License

Apoli and Origins are distributed under a fairly open license. Read it if you want to do anything with them besides play.

You are free to use, share and adapt both mods. Nobody can take those rights away from you as long as you follow the terms below.

If you only want to play, or you are writing a data pack or an addon, none of this is likely to affect you. Read Building on Apoli and carry on.

General clauses

These apply on top of every other section on this page.

Extent Clause

This license covers Apoli, Origins, this website, and all other code, assets and binaries in their repositories, unless a file says otherwise. Where a bundled file carries its own license, that license applies to that file.

Waiver Clause

Any restriction on this page can be set aside with personal permission. Read the next clause before asking.

Personal Permission Clause

Personal permission is rarely granted, and usually only when there's a good reason for it, because granting it reads as an endorsement. If what you want to do is already allowed below, you don't need to ask, and asking will most likely get you pointed back at this page.

Informal Clause

This license will not hold up in court, and nobody intends to take anyone there. The realistic worst case for breaking it is being asked to put it right, although a distribution platform such as Modrinth or CurseForge may also take your project down. Breaking it also makes you a jerk, and you don't want to be a jerk, do you?

Distributing the mods

This covers making the binaries, assets or source available somewhere other than the original download pages: in a modpack, on a mirror, or bundled with a server.

Modpack Clause

You may put either mod in a modpack without asking, whether the pack is public, private or made for one server. That is what the mods are for.

Attribution Clause

Credit Overgrown as the author of the parts you are distributing. If you changed anything, say so. A link back is optional but appreciated.

Non-Monetary Clause

You may not charge for access to the distribution or make money from it in any other way. That includes ad-gated links and URL shorteners, download services that slow you down unless you pay, and putting any part of the download behind a paywall. Selling in-game goods or cosmetics on a server is not distribution, so it is between you and the Minecraft EULA.

Featuring the mods

This covers using either mod somewhere you are not handing out binaries, assets or source, such as a video, a stream, a review or a public server.

Free Rein Clause

Go ahead. You don't need permission or to ask first, and you may monetise the video or stream as usual. The Non-Monetary Clause is about distributing the files, not about your content.

Thief Clause

Do not claim you made either mod. Crediting Overgrown makes you cooler, but it is not required.

Building on Apoli

This covers writing a data pack, or a Java addon that registers its own power, action and condition types against the Apoli API.

Data Pack Clause

Data packs and resource packs you write are entirely yours. Powers, origins, layers and badges are your content, not a derivative of the mod, and nothing on this page applies to them. License and sell them however you like.

Addon Clause

An addon that depends on Apoli and calls its API is not a derivative work of it. Your addon is yours, under any license you choose (including a closed one), as long as you do not copy Apoli's own code into it. Addons are what the engine is for, and the Addon docs exist to help you write one.

Compatibility Clause

You may ship compatibility code for Apoli or Origins in your own mod, including mixins into them, without asking. Please use the public API where one exists so your compatibility code doesn't break with every update.

Using the code or assets

This covers copying source, textures or models out of either mod into your own project, or forking one of them. It is the only section with real conditions attached.

Attribution Clause

Credit Overgrown as the author of the parts you are using, and say so if you altered them.

Copyleft Clause

Your project must be open source, with its source visible and redistribution and modification allowed, and it must carry a clause much like this one.

Fork Clause

You may fork either mod, including to keep an old version alive or to take it somewhere this one is not going. Give your fork a distinct name and mod ID so nobody installs it expecting this one.

Upstream Clause

Both mods are reimplementations of apace100's original Apoli and Origins and inherit obligations from them. Where a file traces back to that work, its original license travels with it, and this page cannot remove those terms.

Version

Version 1, 2026-07-27. The page layout and clause structure are adapted, with thanks, from the Psi License by Vazkii.