The Demo and all Adventures are free every 3 hours right now. On the test instance, the times until free are 1 hour for Demo levels 2 hours for the first Adventure levels 3 hours for other Adventures levels

"play once every few hours for free" apparently leads to Easter eggs in the game where one may find how much, or often one may play.

#gmfrens We go play frog trading card games. How about you frens? Would you like to play battle frog trading card game too man? #pepe #pepegame

Yes, @kenny-crane may be able to share some light on the matter.

No there is no expiry thing. Things will not waste away.

Packs are about 1/2 HBD and about five (5) packs (about 2.5 HBD) will be enough to start playing and get you cards enough to start winning at lower level battles.

Happy to send you an invite if you are interested.

#gmfrens, Would you like to be invited to play a frog battle trading card game? If so, leave a reply! #pepegame #pepe

Feels majickal man. 🐸

#gmfrens, Want to play #pepegame Frog Battle Trading Card Game with frens man? #pepe #meme #dailydook #cent #bbh #freecompliments

#pepegame feels good man!

This is certainly a possibility.

See if YOU got packs!

Yes! Look forward the teams players put together and use! 🐸

Most interest fer shure man! May even be why Zander became the Majickal Frog with majickal long range attack ability to help players increase their mathematical chances!

#gmfrens - #pepegame soon frens #pepe (#apu)

Much Math(amatix) Kalkulashion feels gud man

Real cards as opposed to test cards. Real cards may be a thing...

Good thing to wonder about to possibly take into when playing. Players may get a feel of how much by noticing how many times attacks fail over many battles.