Based on our record, OpenArena should be more popular than Team Fortress 2. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Besides that, have you tried openarena? Source: about 2 years ago
There's also OpenArena which is an open source derivative with some active multiplayer servers. Source: over 2 years ago
Available on Steam: http://store.steampowered.com/app/440/. Source: almost 3 years ago
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