Missing games from Humble bundle

Hello, im trying to install some games from my humble bundle library through lutris but they are not showing up. Any ideas why this may be?
Could it be that some of the games are steam only? Can lutris not install using steam keys through humble bundle?

Lutris can play Steam games but you play them through Steam, not through Humble Bundle.
Take the Steam Key Humble gives you and put it into your Steam account and play the game through either steam directly or steam through Lutris.