The package is severely out of date with respect to the Debian
Policy. Latest version is 4.7.0
and your package only follows
3.9.3...
The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
In watchfile debian/watch, reading webpage http://games.flowix.com/files/einstein/ failed: 500 Can't connect to games.flowix.com:80 (Name or service not known)
autoremoval from testing
Version 2.0.dfsg.2-10 of einstein is marked for autoremoval from testing
on 2024-04-26.
It depends (transitively) on
and sdl-mixer1.2,
affected by RC bug(s)
and 1066329
You should try to prevent the removal from testing by fixing these bugs.