libsdl-perl is a language binding for SDL 1.2, which is unmaintained
upstream (superseded by SDL 2).
I'm assuming that a binding for SDL 2 would have to be a separate package
under a different name, so I've marked this as wontfix: it's likely that
the only way it can be closed is if libsdl-perl is removed from Debian,
after porting or removing the games that currently depend on it.
Alien::SDL2, Alien::libsdl2 and SDL2::FFI seem to be possible replacements,
none of which are currently packaged in Debian. I have no knowledge of
their level of quality, so I am unable to make a recommendation.
The following games directly or indirectly depend on libsdl-perl:
- dizzy
- frozen-bubble
- pangzero