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Download xfishtank

The current version is 3.0.0.

The file README in the tarball contains installation instructions.

Install:

 umask 022
 tar xf xfishtank-3.0.0.tar.gz
 cd xfishtank-3.0.0
 ./configure
 make
 sudo make install

xfishtank should now be installed as /usr/local/games/xfishtank

Install:

 sudo apt install ./xfishtank_3.0.0-1_amd64.deb

xfishtank should now be installed as /usr/games/xfishtank.

Install:

 sudo apt install ./xfishtank_3.0.0-1_i386.deb

xfishtank should now be installed as /usr/games/xfishtank.

Install:

 sudo apt install ./xfishtank_3.0.0-1_armhf.deb

xfishtank should now be installed as /usr/games/xfishtank.

NOTE: I upgraded my raspberry to buster and don't know if this debian package will install on older versions.