Good old asteroids with 100% vector graphics!
No bitmaps whatsoever - everything you see is computed at runtime. Does this make sense? Not really, but coding this was a lot of fun.

• Install dependencies: libsdl2-dev libsdl2-ttf-dev libsdl2-net-dev
• Create a build directory: mkdir build && cd build
• build: cmake .. && make

You can also get a pre-built binary from the action artifacts

A lot of things! Objects are not reasonably culled when out of view, resulting in a performance drop with a large number of asteroids due to increasingly complex collision detection. But hey, at least we have pixel perfect collisions.