Swipe right on games that would sell well next to yours. When the other developer swipes right on you too, it's a match: you both get each other's contact and a bundle kit with art, copy and the Steamworks steps.
Shared tags, price band, audience size, page quality, and whether Steam already lists the two games under “More like this”.
Matching needs proof the game is yours: your Steamworks key, or the support email on your Steam page. No resellers, no bots.
Bundle art from both capsules at Steam sizes, a bundle description, the collaborative bundle steps, and two-week windows clear of big Steam events.
A Steam bundle puts your game on another game's store page, in front of players who already like that kind of game. Steam's "Complete the set" bundles also discount the price for players who own one of the games, so your partner's audience can pick up yours for less. You can also cross-promote with news-post shout-outs or curator picks.
See everything in Indie Monitor Pro →Partners for Tiny Eden.