From GamingOnLinux.com Linux Games Wiki
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- List of crowdfunding games - Crowdfunding is a way for everyone to help make an idea become a reality by pledging their money towards a target in return for a reward, like a copy of a game.
- Humble Bundle Games - A list of Linux games Humble have, with indicators to show if they have a Linux version on Steam or not.
- Open Source Games - Free and Open Source games that support Linux.
- Open Source Game Engines List - Open source game engines for titles that do not have official Linux versions.
This is aimed at being a list of game engines and technology which supports you building Linux games within.
- Game Engines - Aimed at developers to find a game engine they can build a game with that supports Linux.