I currently run an open source game development group creating a FOSS game based on Unity. The game itself is open source and free for everyone to play, compile, build, edit, fork, whatever, but we're thinking of putting it on Steam to cover for server costs (the game is networked).

This has introduced the question of licensing as Unity requires any organization pulling in >$100,000 in revenue to sign up for Plus or higher licenses for all developers in the organization. We have had upwards of 100 individual contributors to the project, many of which are not on a paid license with Unity.

A few of the core developers, myself included, are OK with paying the price for licenses (I myself am already using Plus), but we're not sure if the licensing requires all developers on a project to hold a similar level license or not.

Formally, I am the only individual in the organization (incorporated as a single person LLC). If we do end up pulling in >$100,000 in revenue, am I the only one required to pay for a license, or is any contributor to the project required to have one as well?