Cross Platform Mod API

whitelabel available, get in touch for a demonstration

Easy to Setup

Manage your mod community, with a powerful control panel that puts you in charge.

Cross Platform

Support mods with 1 solution on Steam, Epic Games, Discord, GOG, itch.io, consoles and mobile.

Dependency Free

No client needed, mod.io runs behind the scenes to power 1 click mod installs for your players.

How to get started?

Explore moddable games

Foundation 50 253,915

Aground 93 26,304

OpenXcom 88 35,202

0 A.D. 19 78,503

Meeple Station 28 25,063

Sinespace 72 1,985

Mondrian - Plastic Reality

Mondrian - Plastic Reality 8 233

Hard Times 2 21

Plug'n'Play

Use tools built for Unity, Unreal & more to make supporting mods a breeze.

Flexible

Clientless and compatible with other modding platforms and communities.

Free & unlimited

Let us manage storage, bandwidth & scaling so you can focus on developing your game.

Always evolving

Our team is constantly improving the platform, and interested in your requirements.

Built from experience

Trusted by 33 million visitors annually to ModDB & IndieDB, our developer communities.

Marketing

Harness the power of mods to promote your game, and we'll make sure everyone knows.

Open API

SDK & tools to get started

Welcome to the official SDK, built using C and C++. It's purpose is to allow game developers to support the automatic installation of mods in their games.

SDK Unity Unreal GameMaker RPGMaker Source Lumberyard Backend Client Server

Our Unity plugin is designed to allow easy support of mod.io, a modding API for game developers.

Plugin Unity Frontend UI Backend Client Server

Unity Plugin 0 37

ModBot for Discord

Invite the official mod.io ModBot to your Discord server, and be notified when mods for your favorite games are updated.

ModBot for Discord 0 4

HAXE wrapper simplifies the integration of mod.io in game engines such as OpenFL, Kha or awe6.

Wrapper Frontend UI Backend

HAXE Wrapper 0 94

Unreal Engine Plugin

Development of the Unreal Engine Plugin has begun. We are working on a way to cook and submit mods to mod.io as well as using the mod.io API to control the browsing, downloading and installation of mod files in game.

Plugin Unreal Frontend UI Backend Client Server

Unreal Engine Plugin 0 0

We require an Lumberyard GEM. Interesting in building one? We'd love to hear from you!

Plugin Lumberyard Frontend UI Backend Client Server

Lumberyard GEM 0 0

GameMaker Extension

We require an GameMaker Extension. Interesting in building one? We'd love to hear from you!

Plugin GameMaker Frontend UI Backend Client Server

GameMaker Extension 0 0