TennoGen is a program in the game Warframe that allows players to create and sell their own cosmetic items, such as skins and accessories, for in-game characters and weapons. This initiative supports the game's community by giving talented artists a platform to showcase their creativity while earning a share of the revenue generated from their designs. The items created through TennoGen are available for purchase in the game's marketplace, allowing players to customize their experience. This collaboration between developers and the community enhances the game's aesthetic diversity and fosters a sense of ownership among players.