Dear Metempsychosis player,  I have just added simple tuck boxes for the game among the downloadable files - choose if you prefer A4 or LETTER and if your game was printed two-sided (which means your cards are quite thin and need a thinner box) or one-sided and folded (which need thicker box not only because of twice as much paper but also because of some inner glue volume). 

These sheets were made using https://tuckbox.ferociousweb.com/