I believe a full partnership with MobyGames could prove to be a big boon for both projects.

Here is my suggestion for the MobyGames integration:

• Use MobyGames API to get full list of games and their full info (title, description, platforms, etc.) and fill the Lutris DB - done only once
• Schedule a daily or weekly task on server to import new or changed games from MobyGames
• Redirect users to MobyGames for adding new games or filling out more information (description, platforms, etc.)