open-match is queued for analysis. Crawling candidates and ranking them takes a few minutes. This page updates itself when the list exists — you can also come back later.
What is known so far comes from the other direction:
These projects were analysed and named open-match among their alternatives. The relationship is not symmetric — how open-match rates them is a separate judgement, made when open-match is analysed in its own right.
calls open-match “choose when you only need dedicated matchmaking and already run your own game servers/backend.”
Scalable open-source game backend server: multiplayer, matchmaking, leaderboards, chat, and social features for games.