Just a thought, would anyone that makes Youtube videos about ZK be interested in making something like this:
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Real Time Strategy Game Showdown!
Zero-K Vs BAR
Who is the King of Free OSS RTS?
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The video could be a brief mention of the TA and Spring history, followed by audio interviews with a developer from each project. Each developer could talk about the philosophy, features and implementation of the respective game (eg. ZK = flat tech tree, terraforming). The audio would be supported by footage showing off various features and closeups of various units in action.
If there wasn't someone within ZK available to do this video, could someone from the two projects approach a suitable Youtuber about doing the same, or maybe even someone from BAR?
BAR is fairly friendly to ZK
on its website (see the ZK FAQ), so both projects would probably come off looking good in their respective areas of strength. The video could also honorably mention other Spring projects therefore being a win-win for Spring games generally.