There are 2 main characters in-game, Robot and Monster. Collect and upgrade them to bring the highest use value.
There are 4 types of NFT assets in the game:
GEM is an in-game asset, it's a product that the player will receive during the game.
It is a product of the mining process or a reward in-game quests.
$GEM are tokens used to upgrade, participate in battles, attend events, redeem rewards....