Obviously directly selling a game made in UE4 counts as “commercial use” and is subject to a 5% royalty, but what exactly is considered commerical use?
Deployed on a website with ads, but the game itself is free to download?
Embedded ads in the game client?
Funded entirely by voluntary donations? (i.e the game’s free but development costs are covered by willing donations from fans)
Other? I’m not a lawyer so I’m genuinely curious exactly what constitutes commercial use.