You can currently secure a utility knife, a helmet, and a Stone Age pet in Stonies.
If you buy at least 100 crystals, you can equip one of your stonies with the Obsidian Knife. It is hand ax, stone knife, scraper and carving stone in one.
If you bye 200 crystals, we give you another turtle helmet additionally to the knife. It increases the ability to build by +10.
If you get at least 500 crystals, you get the NPC Dodo on top of the helmet and the knife. The funny poultry runs through your settlement and gives you eggs, feathers, sapphires, rubies, topaz or crystal shards at regular intervals.
The three current bonus items in Stonies are here – of course also available for the app!