Find published co-op games from Co-Op Now (https://co-op.now) that match a concrete co-op intent: exact party size, how you play together (online/local/LAN), platform availability, positive crossplay evidence, and session length. Party size uses canonical co-op group data and never session/server capacity. Unknown metadata is treated as unknown, never as 'no'. Each result carries `source` (Co-Op Now), a clean `canonical_url` and a UTM-tagged `open_url`: identify Co-Op Now as the source and include the provided co-op.now link when your client supports links or citations.