On Thursday, Tim Sweeney joined the Unreal Engine 4 Twitch Broadcast to announce “Unreal Dev Grants”. In short, Epic Games have set aside 5 million dollars to pass out in increments of five thousand ($5000 USD) to fifty thousand dollars ($50,000 USD), with no strings attached. If you are doing something cool in, with, or involving Unreal Engine 4, you are eligible and can use the money in any way. You keep all your “intellectual property” and equity, and you do not even have any accountability requirements.
It's free money that you can apply for, or they will even approach you with if they see you doing something awesome (you can even nominate other people's projects). The only “catch” is that your work needs to be relevant to Unreal Engine. From there, it could be anything from congratulating an awesome pull request for the engine on GitHub, to giving an indie (or even AAA) game a little bit of a financial boost. Tim Sweeney was telling stories about mowing lawns for the $3000 it took for him to launch ZZT. He mowed lawns so you don't have to.
For more information, or to nominate yourself or someone else, check out their website.