The following method was only tested with Aquaria release from Humble
Indie Bundle. In order to play the game copy data files under
%%DATADIR%% or specify the path to them via environment variable e.g.,

   $ unzip aquaria-lnx-humble-bundle.mojo.run
   $ tar cf - -Cdata . | tar xof - -C%%DATADIR%%
   $ aquaria

or

   $ cp -R %%DATADIR%%/override /path/to/aquaria/data/
   $ AQUARIA_DATA_PATH=/path/to/aquaria/data aquaria