# Indie Exchange

> Cross-promotion and a credit-based traffic exchange for independent Unity games.

Indie Exchange adds cross-promotion and a credit-based traffic exchange to Unity games on Android and iOS. It runs alongside your existing ad integration. Your game chooses which provider to call; Indie Exchange does not initialize or call other ad SDKs, enter their bidding auctions, or guarantee their fill.

Current Unity SDK: 0.5.3 preview; Unity 2022.3 or newer. Test your target Unity version and devices. Setup uses Game ID and Test Mode. Settings download at launch; changes apply on the next launch. No provider-specific SDK dependency is added. Public creatives require review; personal ads do not. Local game rewards and exchange credits are separate.

## Start here

- [Unity setup and API reference](https://indie-exchange.com/downloads/IndieExchange-QuickStart.md): Installation, configuration, API behavior, and testing.

- [Download Unity package](https://indie-exchange.com/downloads/IndieExchange-0.5.3.unitypackage): Importable SDK package.
- [Unity SDK on GitHub](https://github.com/samdogsoft/indie-exchange-unity): Source, installation instructions, and changelog.

## Ad platforms

- [Google AdMob + Indie Exchange for Unity](https://indie-exchange.com/integrations/admob.md): Add Unity cross-promotion alongside Google AdMob, keep your normal ads, and use cached Indie ads when AdMob has no fill.
- [AppLovin MAX + Indie Exchange for Unity](https://indie-exchange.com/integrations/applovin-max.md): Use Indie Exchange with AppLovin MAX in Unity for cross-promotion, traffic exchange, and optional interstitial no-fill recovery.
- [Unity LevelPlay + Indie Exchange for Unity](https://indie-exchange.com/integrations/unity-levelplay.md): Add cross-promotion to a Unity LevelPlay game with Indie Exchange while keeping LevelPlay mediation, placements, and fallback controls.
- [Unity Ads + Indie Exchange for Unity](https://indie-exchange.com/integrations/unity-ads.md): Add Indie Exchange cross-promotion to an existing Unity Ads integration, with explicit readiness, show callbacks, and no-fill handling.
- [Use Indie Exchange with your existing Unity ad provider](https://indie-exchange.com/integrations/any-ad-provider.md): A provider-independent Unity integration pattern for cross-promotion and traffic exchange, including custom ad managers and mediation SDKs.

## Common goals

- [Recover an empty Unity ad break without showing two ads](https://indie-exchange.com/integrations/no-fill.md): Understand no-fill fallback with any Unity ad provider: use a cached Indie Exchange ad once, honor disabled formats, and avoid duplicate displays.
- [Use banners and rewarded video alongside your Unity ad provider](https://indie-exchange.com/integrations/banners-and-rewarded.md): Integrate Indie Exchange banners and rewarded videos with your existing Unity ads. Prevent banner overlap and grant rewards only after earned callbacks.
- [Cross-promote your own Unity games from one dashboard](https://indie-exchange.com/integrations/promote-your-own-games.md): Show ads for your other mobile games with Indie Exchange. Set personal ad groups, weights, formats, and public exchange percentages on the website.

## Optional

- [Official Unity SDK](https://github.com/samdogsoft/indie-exchange-unity): MIT-licensed SDK source and releases; the license does not cover the hosted website/backend.
- [Human-readable guides](https://indie-exchange.com/integrations): The same integration instructions as web pages.
- [How the exchange works](https://indie-exchange.com/how-it-works): Product overview and credit model.