Cogs also works, sort of. It has to be started with the __GL_FSAA_MODE=4 env
var *and* antialias must be enabled in the options menu to see AA. However, it
cannot start this way, it says
Couldn't set 1280x960 OpenGL video mode: Couldn't find matching GLX visual
on the next startup. The antialias has to be reset to 0 in
~/.local/share/Cogs/cogs.ini, and re-enabled in the menu. Additionally, there
is a 90% chance of segfault on startup and on changing the antialias setting.