Pinterest is a visual discovery platform that allows users to discover and save ideas for a variety of topics, including video games. By using Pinterest to promote your indie game, you can reach a targeted audience of users and new gamers (or other game developers).

There are several ways you can use Pinterest to promote your video game, here are some tips for promoting your indie game on Pinterest:

1. Create a Pinterest account for your indie game and start by pinning images and videos related to your game. This will help you establish your game's presence on the platform and give people an idea of what your game is all about. For example: "has your game a retrogaming style? Start to pin images and videos about famous retrogames like Sonic, Super Mario or SNES and NES games!"
2. Use relevant keywords in your pins and boards to help people discover your game. For example, if your game is a puzzle game, you can use keywords like "puzzle game," "indie game," and "brain teaser" in your pins and board titles. If it is in pixel art, you can use keywords like "retro games", "pixel art", "pixel artist", "pixel games", etc.
3. Collaborate with other Pinterest users who have an interest in indie games. You can share each other's pins, repin content from each other's boards, and even co-create a board together. This will help you reach a wider audience and build relationships with other members of the indie game community.
4. Utilize Pinterest's promoted pins feature to reach even more people. Promoted pins are pins that you pay to have shown to a targeted audience, and they can be a great way to get your game in front of potential players. Then you can see all the stats about your promoted pins and check what are the next pins to share.
5. Engage with your audience by responding to comments and messages, and asking for feedback on your game. This will help you build a loyal following and foster a community of fans around your game.

Pinterest can be an effective tool for promoting your video game because it allows you to showcase the visual elements of your game, such as character designs and game environments, in a way that is easy for users to discover and share.

Additionally, Pinterest has a large and engaged user base, making it a potentially valuable platform for reaching new players and building buzz for your game.