Can you be a bit more specific/add a few more details?
triilman•2mo ago
I think this is just stupid question, but I wonder in FOSS there is no game project that created from active community for alternative of another game. When we face a problem like paid software or problematic software that steal our data, the community will make the alterative for us but it is less possible for game generally.
card_zero•2mo ago
I wonder what your concept of "game" is. Maybe your question excludes offline and 2D games. (Lots of roguelikes.)
There are many open-source games. There are few large-scale high-polish open source games because it's difficult to build a business model around that. Unlike non-game software, games are ~exclusively consumer-facing, so you can't sell support or use them as a loss leader, and they're standalone applications that are difficult to monetize with online features or to use as the core of a closed-source commercial product.
That said, there are still lots of great projects out there (some of which have even had commercial success), for example:
osu! is probably the longest running financially successful game with a fully FOSS modern core (though a proprietary legacy core). And there are many other smaller projects that have seen plenty of success. There are also a lot of mods that run as FOSS projects on top of proprietary games. So yeah, there are some projects to look into
jethronethro•2mo ago
triilman•2mo ago
card_zero•2mo ago
In regard of "alternative to an existing game", there's 0AD, which resembles the Age of Empires series. https://en.wikipedia.org/wiki/0_A.D._(video_game)