If you have subscribed to the Indie tier of 4Players ODIN you are allowed to use 4Players ODIN for free for up to 1.000 CCUs (Concurrent Users, i.e. users talking at the same time). However, branding is required in your game.
This guide explains how the branding has to be implemented into your game in case of an Indie tier. You are basically free to place the branding in your game, but users should be able to get a (short) glimpse of the logo. Like Unity does in its free tier with the “Made with Unity” splash screen when the game/app starts.
1. Add Text
Place this text somewhere in your game, for example in your credits screen.
Realtime voice chat powered by 4Players ODIN
2. Add a Logo
Choose one of these logos and place it in your splash screen or launch screen.
Just right click and choose “Save to disk” to download an image that makes sense for you.