Finally got the impossible badge! Took me 120 days. You need to be patient, because the last 4 levels are taking a while to collect the ressources. Very nice game, the esthetic is really well done, Kongrats to the devs!
@Naud1234 Yes, the museum is extremely long to complete. I beat last boss after 55 days, now it's 100 days I'm playing and I finished to donate from level 1 to 8. The main issue is the ressources... Starting level 6, the ressources are very long to get, so it takes a while to forge everything. If I can give one advice, always enable the booster!
How long will it take to complete the museum? The materials are too long to gather and the limit is too small. Starting level 4 it already starts to be complecated :(