Indie developers often underestimate the power of cross-promotion. Themed sales, bundles and special discount deals can help to bring in some extra revenue, especially when it comes to post-release marketing. This talk gives an overview of collaborative techniques and talks about Stray Fawn Studios' experience with cross-promotion and knowledge-sharing with fellow developers. Examples include Stray Fawns' nature game collective "Playful Oasis", their roles-based game marketing Discord, shared marketing automatisation tools and more.